Separating net screening device of machine-made sand production line for road surfaces

Abstract

The utility model relates to the field of road surface machine-made sand production, in particular to a separation net screening device of a road surface machine-made sand production line. The separation net screening device of the machine-made sand production line for the road surface can conduct continuous multi-stage screening on machine-made sand, improves screening efficiency and accuracy of the machine-made sand, and further improves production efficiency and quality of the machine-made sand. A separation net screening device of a machine-made sand production line for pavements comprises supporting legs, a supporting frame, telescopic springs and the like, the left supporting leg and the right supporting leg are slidably connected to the front two portions of the supporting frame, and the telescopic springs are connected between the supporting legs and the supporting frame. According to the machine-made sand screening device, machine-made sand is primarily screened through the first screening net, then screening is conducted again through the second screening net and the third screening net, and the effects that continuous multi-stage screening can be conducted on the machine-made sand, the screening efficiency and accuracy of the machine-made sand are improved, and then the production efficiency and quality of the machine-made sand are improved are achieved.

Description

Technical Field

[0001] The utility model relates to the field of production of machine-made sand for pavement, in particular to a screen screening device for a production line of machine-made sand for pavement. Background Art

[0002] In the production process of pavement materials, machine-made sand is an important basic material. Its quality and particle size distribution have a vital impact on the overall performance of the pavement. Therefore, it needs to be screened during the production process of machine-made sand.

[0003] The existing machine-made sand screening device for pavement usually places the machine-made sand on the screen for transportation. During the transportation process, the screen is shaken to screen the machine-made sand. However, in order to ensure the production quality of the machine-made sand, the machine-made sand needs to be recovered and screened multiple times. The operation is cumbersome and the screening efficiency is low, which affects the production efficiency of the machine-made sand.

[0004] Therefore, a mesh screening device for a pavement sand production line has been developed that can perform continuous multi-stage screening of machine-made sand, improve the screening efficiency and accuracy of machine-made sand, and thus improve the production efficiency and quality of machine-made sand. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing machine-made sand screening device for pavement, in order to ensure the production quality of machine-made sand, it is necessary to recover the screened machine-made sand and perform multiple screenings, which is cumbersome to operate and has low screening efficiency, affecting the production efficiency of machine-made sand. The utility model provides a mesh screening device for a machine-made sand production line for pavement, which can perform continuous multi-stage screening of machine-made sand, improve the screening efficiency and accuracy of machine-made sand, and thereby improve the production efficiency and quality of machine-made sand.

[0006] The mesh screening device of the machine-made sand production line for pavement includes support legs, a support frame, a telescopic spring, a first screening net, a second screening net, a first motor and a first rotating frame. The front two parts of the support frame are slidably connected to the left and right support legs, and the support legs are connected to the support frame with a telescopic spring. The upper part of the support frame is connected to the first screening net, the lower part of the support frame is connected to the second screening net, the front side of the middle part of the support frame is connected to the first motor, and the first rotating frame is connected to the output shaft of the first motor.

[0007] To further explain, the first rotating frame is a cam-shaped structure.

[0008] Further description, it also includes a feed port, a transmission assembly, a rotating shaft, a bevel gear set, a second rotating frame, a connecting plate and a third screening net. The upper left side of the second screening net is connected to the feed port, the front side of the feed port is rotatably connected to the rotating shaft, a transmission assembly is connected between the rotating shaft and the first rotating frame, the upper front part of the feed port is rotatably connected to the second rotating frame, a bevel gear set is connected between the second rotating frame and the rotating shaft, the third screening net is slidably connected to the feed port, and a connecting plate is rotatably connected between the third screening net and the second rotating frame.

[0009] To further illustrate, the transmission assembly includes a belt and a pulley. The front of the first rotating frame is connected to a pulley, the front of the rotating shaft is also connected to a pulley, and a belt is wound around the pulleys.

[0010] Further explanation: it also includes a second motor, a screw rod, a sliding frame and a push plate. The second motor is connected to the left side of the upper part of the discharge port, the screw rod is connected to the output shaft of the supporting foot, the screw rod is rotatably connected to the discharge port, the sliding frame is threadedly connected to the screw rod, and the sliding frame is rotatably connected to the lower part of the sliding frame.

[0011] To further illustrate, the upper side of the sliding plate is connected to a limit plate.

[0012] The beneficial effects of the present invention are as follows: the present invention uses the first screening net to perform preliminary screening of the machine-made sand, and then uses the second screening net and the third screening net to perform further screening, thereby achieving the effect of being able to perform continuous multi-stage screening of the machine-made sand, improving the screening efficiency and accuracy of the machine-made sand, and thus improving the production efficiency and quality of the machine-made sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the first cross-sectional three-dimensional structure of the present utility model.

[0015] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0016] Figure 4 This is a schematic diagram of the third three-dimensional structure of the present utility model.

[0017] Figure 5 This is a schematic diagram of a fourth partial cross-sectional three-dimensional structure of the present invention.

[0018] Markings in the accompanying drawings: 1: supporting foot, 2: supporting frame, 3: telescopic spring, 4: first screening net, 5: second screening net, 6: first motor, 7: first rotating frame, 8: discharge port, 9: transmission assembly, 10: rotating shaft, 11: bevel gear set, 12: second rotating frame, 13: connecting plate, 14: third screening net, 15: second motor, 16: screw rod, 17: sliding frame, 18: push plate. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0020] Screening device for machine-made sand production line for pavement, such as Figure 1-Figure 5 As shown, it includes support legs 1, support frame 2, telescopic spring 3, first screening net 4, second screening net 5, first motor 6, first rotating frame 7, discharge port 8, transmission assembly 9, rotating shaft 10, bevel gear set 11, second rotating frame 12, connecting plate 13, third screening net 14, second motor 15, screw rod 16, sliding frame 17 and push plate 18. The front two parts of the support frame 2 are slidably connected to the left and right support legs 1, and the support legs 1 are connected to the support frame 2 with telescopic spring 3. The upper part of the support frame 2 is connected to the first screening net 4, and the lower part of the support frame 2 is connected to the second screening net 5. The front side of the middle part of the support frame 2 is connected to the first motor 6, and the first rotating frame 7 is connected to the output shaft of the first motor 6. The first rotating frame 7 is a cam-shaped structure. The upper left side of the second screening net 5 is connected to the discharge port 8, and the front side of the discharge port 8 is rotatable. It is connected to a rotating shaft 10, a transmission assembly 9 is connected between the rotating shaft 10 and the first rotating frame 7, the front upper part of the discharge port 8 is rotatably connected to the second rotating frame 12, a bevel gear set 11 is connected between the second rotating frame 12 and the rotating shaft 10, a third screening net 14 is slidably connected to the discharge port 8, and a connecting plate 13 is rotatably connected between the third screening net 14 and the second rotating frame 12, the transmission assembly 9 includes a belt and a pulley, a pulley is connected to the front of the first rotating frame 7, a pulley is also connected to the front of the rotating shaft 10, a belt is wrapped around the pulleys, a second motor 15 is connected to the upper left side of the discharge port 8, a screw rod 16 is connected to the output shaft of the supporting foot 1, the screw rod 16 is rotatably connected to the discharge port 8, a sliding frame 17 is threadedly connected to the screw rod 16, the lower part of the sliding frame 17 is rotatably connected to a push plate 18, and a limiting plate is connected to the upper side of the push plate 18.

[0021] When the utility model is used, the supporting frame 2 is first moved to the machine-made sand production line for pavement, and the supporting foot 1 is used to support the supporting frame 2. Then, the machine-made sand to be screened is loaded onto the discharge port 8, so that the machine-made sand falls onto the third screening net 14 in the discharge port 8, and then the first motor 6 is started to make the first rotating frame 7 rotate. The rotation of the belt and the pulley in the transmission assembly 9 makes the rotating shaft 10 rotate, and then the meshing movement of the bevel gear set 11 makes the second rotating frame 12 rotate, driving the connecting plate 13 to rotate, thereby pulling the third screening net 14 to move back and forth, so that the third screening net 14 performs the initial screening of the machine-made sand. When the third screening net 14 screens the machine-made sand, the second motor 15 is started to make the screw rod 16 rotate, and under the action of the thread, the sliding frame 17 moves, driving the push plate 18 to push down and recycle the large pieces of machine-made sand remaining on the third screening net 14, and then the second motor 15 is started in the direction The second motor 15 resets the sliding frame 17 and the push plate 18. Under the action of the limit plate, the push plate 18 rotates to avoid affecting the reset of the push plate 18. Then, the machine-made sand screened by the third screening net 14 falls onto the first screening net 4. At the same time, when the first rotating frame 7 rotates, the supporting frame 2 vibrates up and down due to the action of the eccentricity and the telescopic spring 3, driving the first screening net 4 and the second screening net 5 to shake, and performing secondary screening on the machine-made sand on the first screening net 4. Large pieces of machine-made sand will be discharged from the right side of the first screening net 4. The machine-made sand screened by the first screening net 4 falls on the second screening net 5. After screening by the second screening net 5, the machine-made sand that meets the production requirements falls from the second screening net 5 for collection, and the machine-made sand that does not meet the requirements is discharged from the left side of the second screening net 5, thereby realizing continuous multi-stage screening of the machine-made sand, improving the screening efficiency and accuracy of the machine-made sand, and thus improving the production efficiency and quality of the machine-made sand.

[0022] It should be understood that the above description is only for illustrative purposes and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be within the scope of the claims herein.

Claims

1. The screen screening device for the machine-made sand production line for road surface use is characterized by: The invention comprises a support leg (1), a support frame (2), a telescopic spring (3), a first screening net (4), a second screening net (5), a first motor (6) and a first rotating frame (7), wherein the front two parts of the support frame (2) are both slidably connected to the left and right support legs (1), the support legs (1) are both connected to the support frame (2) with a telescopic spring (3), the upper part of the support frame (2) is connected to the first screening net (4), the lower part of the support frame (2) is connected to the second screening net (5), the front side of the middle part of the support frame (2) is connected to the first motor (6), and the output shaft of the first motor (6) is connected to the first rotating frame (7).

2. The screen screening device for a pavement machine-made sand production line according to claim 1 is characterized by: The first rotating frame (7) is a cam-shaped structure.

3. The screen screening device for a pavement machine-made sand production line according to claim 1 is characterized by: The invention also includes a feed opening (8), a transmission assembly (9), a rotating shaft (10), a bevel gear set (11), a second rotating frame (12), a connecting plate (13) and a third screening net (14), wherein the upper left side of the second screening net (5) is connected to the feed opening (8), the front side of the feed opening (8) is rotatably connected to the rotating shaft (10), the transmission assembly (9) is connected between the rotating shaft (10) and the first rotating frame (7), the upper front part of the feed opening (8) is rotatably connected to the second rotating frame (12), the bevel gear set (11) is connected between the second rotating frame (12) and the rotating shaft (10), the third screening net (14) is slidably connected to the feed opening (8), and the connecting plate (13) is rotatably connected between the third screening net (14) and the second rotating frame (12).

4. The screen screening device for a road surface machine-made sand production line according to claim 3 is characterized by: The transmission assembly (9) includes a belt and a pulley. The front of the first rotating frame (7) is connected to a pulley, and the front of the rotating shaft (10) is also connected to a pulley. A belt is wound between the pulleys.

5. The screen screening device for a road surface machine-made sand production line according to claim 3 is characterized by: The invention also includes a second motor (15), a screw rod (16), a sliding frame (17) and a push plate (18), wherein the left side of the upper portion of the discharge port (8) is connected to the second motor (15), the output shaft of the support leg (1) is connected to the screw rod (16), the screw rod (16) is rotatably connected to the discharge port (8), the upper portion of the screw rod (16) is threadedly connected to the sliding frame (17), and the lower portion of the sliding frame (17) is rotatably connected to the push plate (18).

6. The screen screening device for a road surface machine-made sand production line according to claim 5 is characterized by: The upper side of the push plate (18) is connected with a limit plate.

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