Intelligent gravel screening equipment for civil engineering

Abstract

The invention belongs to the field of mining equipment, and particularly relates to intelligent gravel screening equipment for civil engineering, the intelligent gravel screening equipment comprises a workbench and a vibration assembly, a rectangular through groove is formed in the workbench, grooves are formed in the side walls of the two ends of the rectangular through groove in the length direction, and a screening plate is slidably connected into the two grooves; a conveying belt is arranged below the workbench, the vibration assembly comprises two mounting plates fixed to one end of the workbench, a first rotating shaft is rotationally connected to the two mounting plates, two sliding blocks are fixed to the end, close to the first rotating shaft, of the screening plate, and the two sliding blocks penetrate through the workbench and are in sliding connection with the workbench; a sliding rod is fixed to the end, located on the outer side of the workbench, of the sliding block. Power is provided for the vibration assembly, the cleaning assembly and the dust falling assembly through rotating motion of the conveying belt rotating shaft, additional driving equipment is not needed, the equipment cost is low, operation is easy, coordination among the assemblies is high, and the working efficiency can be improved easily.

Description

Technical Field

[0001] The invention belongs to the field of mining equipment, and in particular relates to intelligent sand and gravel screening equipment for civil engineering. Background Art

[0002] Sand and gravel is a common building material, consisting of a loose mixture of sand and crushed stone. Due to its good hardness and stable chemical properties, sand and gravel are widely used in the construction of infrastructure projects such as buildings, roads, and bridges. Sand and gravel screening is an important link in the sand and gravel production line. Its main purpose is to classify sand and gravel according to particle size through screening equipment to meet the requirements of sand and gravel particle size for different users or production processes.

[0003] The existing publication number CN220072335U discloses an intelligent multi-stage sand and gravel screening equipment, which includes a base frame, a conveyor belt installed between the base frames, and a driver for equipment transmission. A screening part is installed on the upper end of the base frame, and the eccentric vibrator on the side of the screening part is connected to the driver through a transmission belt. The first-order screen inside the screening part is a movable structure. The screen is designed as a separation structure. When the material is stuck, the handle is adjusted to flip the mesh body to vibrate out the stuck sand and gravel, thereby improving maintenance efficiency.

[0004] The existing device also has the following deficiencies:

[0005] 1. When the existing device is blocked, it is necessary to stop working and clean up the sand and gravel being screened on the screen, and then flip the screen to remove the sand and gravel stuck in the mesh. The operation is cumbersome and the work efficiency is low;

[0006] 2. During the sand and gravel screening process, a large amount of dust will be raised due to the continuous vibration of the screen. The existing equipment lacks dust reduction function and cannot handle the raised dust. The staff will inhale the dust while working, which will have an adverse effect on their health.

[0007] 3. In the existing device, the transmission component and the vibration component are driven by different driving devices respectively, the production cost of the equipment is high, and the coordination between the components is low, and the working efficiency is not high. Summary of the invention

[0008] The purpose of the present invention is to provide an intelligent sand and gravel screening device for civil engineering in view of the problems raised in the above background technology.

[0009] To achieve the above object, the present invention adopts the following technical scheme: an intelligent sand and gravel screening device for civil engineering, comprising:

[0010] A workbench, wherein a rectangular through slot is provided on the workbench, grooves are provided on the side walls at both ends of the rectangular through slot along the length direction, sieve plates are slidably connected in the two grooves, and a conveyor belt is provided under the workbench;

[0011] A vibration assembly, the vibration assembly includes two mounting plates fixed to one end of the workbench, the two mounting plates are rotatably connected with a first rotating shaft, two sliders are fixed to one end of the screen plate close to the first rotating shaft, the two sliders penetrate the workbench and are slidably connected to the workbench, a sliding rod is fixed to one end of the slider that is outside the workbench, two eccentric wheels are fixed on the first rotating shaft, an annular groove is provided on the eccentric wheel, and the sliding rod is slidably connected to the annular groove at one end away from the slider, and the vibration assembly also includes a first driving component.

[0012] Furthermore, the first driving component is fixed to a first pulley at one end of the first rotating shaft, a second pulley is fixed to the rotating shaft of the conveyor belt, a belt is connected between the first pulley and the second pulley, and the transmission ratio between the first pulley and the second pulley is 1:2.

[0013] Furthermore, a cleaning assembly is provided under the workbench, and the cleaning assembly includes two reciprocating screws rotatably connected to the workbench support legs, a movable seat is threadedly connected to the reciprocating screws, a second rotating shaft is rotatably connected between the two movable seats, a rotating roller is fixed on the second rotating shaft, a steel brush is fixed on the cylindrical surface of the rotating roller, and the cleaning assembly also includes a second driving component and a transmission component.

[0014] Furthermore, the second driving component includes column gears fixed to both ends of the second rotating shaft, and a rack meshing with the column gears is fixed on the workbench.

[0015] Furthermore, the transmission component includes a first bevel gear fixed on the reciprocating screw rod, and a second bevel gear meshing with the first bevel gear is fixed on the first rotating shaft.

[0016] Furthermore, a dust reduction component is provided on the workbench, and the dust reduction component includes a water tank fixed on the workbench support legs, the water tank is connected to a water inlet pipe and a water outlet pipe, the end of the water outlet pipe away from the water tank is connected to a rotary atomizing nozzle, and the dust reduction component also includes a water supply component.

[0017] Furthermore, the water supply component includes a piston plate that is sealingly and slidably connected to the water tank, and two piston rods are fixed on the piston plate. The two piston rods pass through the top of the water tank and are sealingly and slidably connected to the water tank. A cam is fixed on the reciprocating screw, and a sliding groove is opened on the arc-shaped side wall of the cam. The top end of the piston rod is slidably connected to the sliding groove.

[0018] Furthermore, both the water inlet pipe and the water outlet pipe are provided with a one-way valve.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The present invention sets a cleaning component. When the conveyor belt is working, the first rotating shaft is driven to rotate through the joint action of the first pulley, the second pulley and the belt. Under the meshing action of the first bevel gear and the second bevel gear, the reciprocating screw is driven to rotate, thereby driving the movable seat to move back and forth horizontally along the reciprocating screw. Under the meshing action of the column gear and the rack, the second rotating shaft drives the steel brush to rotate when the movable seat moves back and forth. When the steel brush rotates, the sand and gravel stuck in the mesh of the screen plate is pushed out. The sand and gravel screening and the screen plate cleaning are carried out simultaneously, and no manual operation is required, so the working efficiency is high.

[0021] 2. The present invention sets a dust reduction component. When the reciprocating screw rotates, the cam is driven to rotate, thereby driving the piston rod and the piston plate to move up and down. When the piston plate moves downward, the pressure between the top plate of the water tank and the piston plate decreases, and the external water source enters the water tank under the action of the pressure difference. When the piston plate moves upward, the water in the water tank is squeezed into the rotary atomizing nozzle and atomized and then sprayed out to absorb the raised dust, thereby achieving the dust reduction effect and preventing the staff from inhaling too much dust and causing adverse effects on their health.

[0022] 3. The present invention provides a first driving component, a second driving component and a transmission component, and utilizes the rotational motion of the conveyor belt rotating shaft to provide power for the vibration component, the cleaning component and the dust reduction component. No additional driving equipment is required, the equipment cost is low, and the operation is simple. The components are highly coordinated, which is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an intelligent sand and gravel screening device for civil engineering provided by the present invention;

[0024] Figure 2 It is a schematic side view of the overall structure of an intelligent sand and gravel screening device for civil engineering provided by the present invention;

[0025] Figure 3 This is a schematic diagram of the main structure of an intelligent sand and gravel screening device for civil engineering provided by the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of a dust reduction component of an intelligent sand and gravel screening device for civil engineering provided by the present invention;

[0027] Figure 5 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 6 yes Figure 1 Enlarged view of point B in the middle.

[0029] In the figure, 1 is a workbench, 11 is a rectangular through slot, 12 is a groove, 13 is a sieve plate, and 14 is a conveyor belt;

[0030] 21 mounting plate, 22 first rotating shaft, 23 slider, 24 slide bar, 25 eccentric wheel, 26 annular groove, 27 first pulley, 28 second pulley, 29 belt;

[0031] 31 reciprocating screw rod, 32 movable seat, 33 second rotating shaft, 331 steel brush, 34 column gear, 35 rack, 36 first bevel gear, 37 second bevel gear;

[0032] 41 water tank, 42 ​​water inlet pipe, 43 water outlet pipe, 44 rotary atomizing nozzle, 45 piston plate, 46 piston rod, 47 cam, 471 slideway. DETAILED DESCRIPTION

[0033] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0034] like Figure 1-Figure 6 As shown, an intelligent screening device for sand and gravel for civil engineering includes a workbench and a vibration component. A rectangular through slot 11 is provided on the workbench 1, and grooves 12 are provided on the side walls at both ends along the length direction of the rectangular through slot 11. Screen plates 13 are slidably connected in the two grooves 12, and a conveyor belt 14 is provided under the workbench 1.

[0035] During operation, the sand and gravel to be screened are placed on the screen plate 13, and the screen plate is vibrated by the vibration component to screen the sand and gravel. The screened sand and gravel fall on the conveyor belt 14 and are transported to the next process.

[0036] The vibration assembly includes two mounting plates 21 fixed to one end of the workbench 1, and the two mounting plates 21 are rotatably connected with a first rotating shaft 22. Two sliders 23 are fixed to one end of the screen plate 13 close to the first rotating shaft 22. The two sliders 23 penetrate the workbench 1 and are slidably connected to the workbench 1. A slide bar 24 is fixed to one end of the slide bar 23 on the outer side of the workbench. Two eccentric wheels 25 are fixed to the first rotating shaft 22, and an annular groove 26 is provided on the eccentric wheel 25. The end of the slide bar 24 away from the slide bar 23 is slidably connected in the annular groove 26. The vibration assembly also includes a first driving component, and the first driving component is fixed to a first pulley 27 at one end of the first rotating shaft 22. A second pulley 28 is fixed to the rotating shaft of the conveyor belt 14, and a belt 29 is connected between the first pulley 27 and the second pulley 28. The transmission ratio of the first pulley 27 to the second pulley 28 is 1:2, which increases the rotation speed of the first rotating shaft 22, thereby improving the vibration effect of the screen plate 13 and improving the sand and gravel screening efficiency.

[0037] When working, the conveyor belt 14 is turned on. Under the joint action of the first pulley 27, the second pulley 28 and the belt, the rotating shaft of the conveyor belt 14 drives the first rotating shaft 22 and the eccentric wheel 25 to rotate, thereby driving the sliding rod 25 and the slider 23 to move horizontally back and forth, so that the screen plate 13 produces a vibration effect to screen the sand and gravel. The transmission ratio of the first pulley 27 and the second pulley 28 is 1:2 to increase the rotation speed of the first rotating shaft 22, thereby increasing the vibration effect of the screen plate 13 and improving the sand and gravel screening efficiency.

[0038] A cleaning assembly is provided under the workbench 1, and the cleaning assembly includes two reciprocating screws 31 rotatably connected to the supporting legs of the workbench 1, a movable seat 32 is threadedly connected to the reciprocating screws 31, a second rotating shaft 33 is rotatably connected between the two movable seats 32, a rotating roller is fixed on the second rotating shaft 33, and a steel brush 331 is fixed on the cylindrical surface of the rotating roller. The cleaning assembly also includes a second driving component and a transmission component. The second driving component includes a column gear 34 fixed to both ends of the second rotating shaft 33, a rack 35 meshing with the column gear 34 is fixed on the workbench 1, and the transmission component includes a first bevel gear 36 fixed on the reciprocating screw 31, and a second bevel gear 37 meshing with the first bevel gear is fixed on the first rotating shaft 22.

[0039] During operation, the first rotating shaft 22 drives the second bevel gear 37 to rotate. Under the action of gear meshing, the first bevel gear 36 drives the reciprocating screw 31 to rotate. Under the action of thread matching, the movable seat 32 moves back and forth horizontally along the reciprocating screw 31. When the movable seat 32 moves, the second rotating shaft 33 drives the steel brush 331 to rotate under the action of the column gear 34 and the rack 35, and the sand and gravel stuck in the mesh of the screen plate 13 are removed. The sand and gravel screening and the cleaning of the screen plate 13 are carried out simultaneously, and no manual operation is required, so the work efficiency is high.

[0040] A dust suppression assembly is provided on the workbench 1, and the dust suppression assembly includes a water tank 41 fixed on the supporting leg of the workbench 1, and a water inlet pipe 42 and a water outlet pipe 43 are connected to the water tank 41, and a one-way valve is provided on the water inlet pipe 42 and the water outlet pipe 43. The one-way valve on the water inlet pipe 42 only allows water to enter the water tank 41, and the one-way valve on the water outlet pipe 43 only allows water to flow out of the water tank 41, and the end of the water outlet pipe 43 away from the water tank 41 is connected to a rotary atomizing nozzle 44. The dust suppression assembly also includes a water supply component, and the water supply component includes a piston plate 45 that is sealingly and slidably connected to the water tank 41, and two piston rods 46 are fixed on the piston plate 45. The two piston rods 46 pass through the top of the water tank 41 and are sealingly and slidably connected to the water tank 41, and a cam 47 is fixed to the reciprocating screw 31, and a slide groove 471 is provided on the arc-shaped side wall of the cam 47, and the top of the piston rod 46 is slidably connected to the slide groove 471.

[0041] During operation, the reciprocating screw 31 rotates to drive the cam 47 to rotate synchronously, and the rotation of the cam 47 drives the piston rod 46 and the piston plate 45 to reciprocate up and down. When the piston plate 45 moves downward, the space between the top plate of the water tank 41 and the piston plate 45 becomes larger, and the pressure decreases. The external water source enters the water tank 41 under the action of the pressure difference. When the piston plate 45 moves upward, the water in the water tank 41 is squeezed into the rotary atomizing nozzle 44 and then sprayed out after being atomized, so as to absorb the raised dust and achieve the dust reduction effect, thereby preventing the staff from inhaling too much dust and causing adverse effects on their health.

[0042] The working principle of the present invention is as follows:

[0043] When the present invention is in use, the water inlet pipe 42 is first connected to the external water source through a pipeline, and then the sand and gravel to be screened are placed on the screen plate 13, and the conveyor belt 14 is turned on. Under the joint action of the first pulley 27, the second pulley 28 and the belt, the rotating shaft of the conveyor belt 14 drives the first rotating shaft 22 and the eccentric wheel 25 to rotate, thereby driving the slide bar 25 and the slider 23 to move horizontally back and forth, so that the screen plate 13 produces a vibration effect to screen the sand and gravel. The transmission ratio of the first pulley 27 and the second pulley 28 is 1:2, which increases the rotation speed of the first rotating shaft 22, thereby increasing the vibration effect of the screen plate 13 and improving the sand and gravel screening efficiency.

[0044] When the first rotating shaft 22 drives the second bevel gear 37 to rotate, under the action of gear meshing, the first bevel gear 36 drives the reciprocating screw 31 to rotate, and under the action of thread matching, the movable seat 32 moves back and forth horizontally along the reciprocating screw 31. When the movable seat 32 moves, under the action of the column gear 34 and the rack 35, the second rotating shaft 33 drives the steel brush 331 to rotate, and the sand and gravel stuck in the mesh of the screen plate 13 are removed. The sand and gravel screening and the cleaning of the screen plate 13 are carried out simultaneously, and no manual operation is required, so the work efficiency is high.

[0045] The rotation of the reciprocating screw 31 drives the cam 47 to rotate synchronously, and the rotation of the cam 47 drives the piston rod 46 and the piston plate 45 to reciprocate up and down. When the piston plate 45 moves downward, the space between the top plate of the water tank 41 and the piston plate 45 becomes larger, the pressure decreases, and the external water source enters the water tank 41 under the action of the pressure difference. When the piston plate 45 moves upward, the water in the water tank 41 is squeezed into the rotary atomizing nozzle 44 and atomized and then sprayed out to absorb the raised dust, thereby achieving the dust reduction effect and preventing the staff from inhaling too much dust and having adverse effects on their health. In addition, the present invention utilizes the rotational movement of the rotating shaft of the conveyor belt 14 to provide power for the vibration component, the cleaning component and the dust reduction component, and does not require additional driving equipment. The equipment cost is low and the operation is simple. The coordination between the components is high, which is conducive to improving work efficiency.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent sand and gravel screening device for civil engineering, characterized in that: include: A workbench (1), wherein a rectangular through slot (11) is provided on the workbench (1), grooves (12) are provided on the side walls at both ends of the rectangular through slot (11) along the length direction, and a sieve plate (13) is slidably connected in the two grooves (12), and a conveyor belt (14) is provided below the workbench (1); A vibration assembly, the vibration assembly comprising two mounting plates (21) fixed to one end of a workbench (1), the two mounting plates (21) being rotatably connected to a first rotating shaft (22), two sliders (23) being fixed to one end of the screen plate (13) close to the first rotating shaft (22), the two sliders (23) passing through the workbench (1) and being slidably connected to the workbench (1), a slide rod (24) being fixed to one end of the slider (23) being located outside the workbench, two eccentric wheels (25) being fixed to the first rotating shaft (22), an annular groove (26) being provided on the eccentric wheel (25), the end of the slide rod (24) away from the slider (23) being slidably connected in the annular groove (26), and the vibration assembly further comprising a first driving component.

2. The intelligent sand and gravel screening equipment for civil engineering according to claim 1 is characterized in that: The first driving component is fixed to a first pulley (27) at one end of a first rotating shaft (22); a second pulley (28) is fixed to the rotating shaft of the conveyor belt (14); a belt (29) is connected between the first pulley (27) and the second pulley (28); and a transmission ratio between the first pulley (27) and the second pulley (28) is 1:

2.

3. The intelligent sand and gravel screening equipment for civil engineering according to claim 2 is characterized in that: A cleaning assembly is provided below the workbench (1), the cleaning assembly comprising two reciprocating screws (31) rotatably connected to the support legs of the workbench (1), a movable seat (32) being threadedly connected to the reciprocating screws (31), a second rotating shaft (33) being rotatably connected between the two movable seats (32), a rotating roller being fixed to the second rotating shaft (33), a steel brush (331) being fixed to the cylindrical surface of the rotating roller, and the cleaning assembly further comprising a second driving component and a transmission component.

4. The intelligent sand and gravel screening equipment for civil engineering according to claim 3 is characterized in that: The second driving component comprises column gears (34) fixed to both ends of the second rotating shaft (33), and a rack (35) meshing with the column gear (34) is fixed on the workbench (1).

5. The intelligent sand and gravel screening equipment for civil engineering according to claim 4 is characterized in that: The transmission component comprises a first bevel gear (36) fixed on the reciprocating screw rod (31), and a second bevel gear (37) meshing with the first bevel gear is fixed on the first rotating shaft (22).

6. The intelligent sand and gravel screening equipment for civil engineering according to claim 1, characterized in that: The workbench (1) is provided with a dust reduction component, the dust reduction component comprising a water tank (41) fixed on a supporting leg of the workbench (1), the water tank (41) being connected to a water inlet pipe (42) and a water outlet pipe (43), the end of the water outlet pipe (43) away from the water tank (41) being connected to a rotary atomizing nozzle (44), and the dust reduction component further comprising a water supply component.

7. The intelligent sand and gravel screening equipment for civil engineering according to claim 6, characterized in that: The water supply component comprises a piston plate (45) which is sealingly and slidably connected to the water tank (41); two piston rods (46) are fixed to the piston plate (45); the two piston rods (46) penetrate the top of the water tank (41) and are sealingly and slidably connected to the water tank (41); a cam (47) is fixed to the reciprocating screw (31); a sliding groove (471) is provided on the arc-shaped side wall of the cam (47); and the top end of the piston rod (46) is slidably connected to the sliding groove (471).

8. The intelligent sand and gravel screening equipment for civil engineering according to claim 6, characterized in that: The water inlet pipe (42) and the water outlet pipe (43) are both provided with a one-way valve.

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