Eccentric sand screening machine

Abstract

A sand screening mechanism is arranged in the middle of a machine frame, a water sprinkling mechanism is arranged on the left side of the machine frame, a rotating shaft of a screen drum is subjected to offset treatment, so that when a motor drives the screen drum to rotate, pure circumferential rotation is avoided, eccentric vibration is increased, the vibration amplitude of the screen drum is enhanced, and sand and stone in the screen drum are separated more easily; flying dust generated due to the fact that the vibration amplitude of the screen drum is increased is pressed through the water spraying mechanism, a water pipe of the water spraying mechanism is a universal pipe, the direction can be freely adjusted, the flying dust can be better pressed, pollution is reduced, and the screen drum and the machine frame can be better cleaned in the cleaning process. And in addition, the water sprinkling mechanism can reciprocate, so that the problem that the water sprinkling mechanism only sprinkle water to one position of the screen drum all the time is solved, the workload of a user is reduced, the water sprinkling device can uniformly sprinkle water, and finally the effects of improving the production efficiency and reducing pollution are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, and more specifically, to an eccentric sand screening machine. Background Art

[0002] Sand is one of the most widely used and indispensable materials in construction projects. It can be used in the manufacture of concrete, bricks, tiles and other building materials. The particle size of sand has a great impact on construction projects. Therefore, sand screening equipment is needed to screen the sand before using it.

[0003] Due to the huge amount of sand used, in the existing technology, the vibration amplitude of the drum screen is small during rotation, and the sand screening time is too long, resulting in low sand screening efficiency and inability to smoothly follow up the project progress. In addition, the existing sand screening equipment chooses to screen dry sand, thereby generating a large amount of flying dust, which greatly deteriorates the working environment of workers. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an eccentric sand screening machine to solve the problems of low sand screening efficiency and poor working environment during the construction process.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an eccentric sand screening machine, comprising a frame, a sand screening mechanism is arranged in the middle of the frame, and a watering mechanism is arranged on the left side of the frame;

[0006] The sand screening mechanism includes a screen drum, an eccentric shaft, a driven wheel, a discharge port baffle, a transmission belt, a No. 1 motor, a motor seat, a screen drum support, and a baffle hinge. The screen drum is fixedly connected to the eccentric shaft through the screen drum support, one end of the eccentric shaft is fixedly connected to the driven wheel, the No. 1 motor is fixedly installed above the motor seat, the No. 1 motor is transmission-connected to the driven wheel through a transmission belt, the frame is fixedly connected to bearings at the front and rear, the eccentric shaft is rotationally connected to the frame through the bearing, and the frame is movably connected to the discharge port baffle through the baffle hinge;

[0007] The sprinkler mechanism includes a mist nozzle, a plastic water pipe, a No. 2 motor, a water pump, a flexible water pipe, an incomplete gear, a lower rack, an upper rack, and a water pump guide plate. The lower rack is fixedly connected to the left side of the frame, the upper rack above the lower rack is fixedly connected to the left side of the frame, the water pump guide plate is fixedly connected to the left side of the frame, the incomplete gear is meshed between the lower rack and the upper rack, the incomplete gear and the output end of the No. 2 motor are fixedly connected, the No. 2 motor is installed on the side of the water pump facing the water pump guide plate, the water pump is slidably connected to the left side of the water pump guide plate, the flexible water pipe is fixedly connected to the bottom of the water pump, the lower end of the plastic water pipe is fixedly connected to the top of the water pump, and the mist nozzle is connected to the upper end of the plastic water pipe.

[0008] The screen drum is inclined at an angle, and the eccentric shaft is located at a non-axial position of the screen drum.

[0009] Wherein, the plastic water pipe is a universal pipe, and the direction can be changed arbitrarily.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model arranges an eccentric shaft so that the screen drum rotates eccentrically around the eccentric shaft during operation. Compared with the traditional screening machine, the eccentric rotation has a stronger vibration amplitude than the circular rotation, and the centrifugal force generated is greater, which can make it easier to separate the sand and stone stuck in the screen drum, speed up the sand screening working speed, and effectively improve the sand screening working efficiency.

[0012] The flying dust generated by the increased vibration amplitude of the screen drum is suppressed by the sprinkler mechanism. Since the water pipe of the sprinkler mechanism is a universal pipe, the direction can be adjusted freely. Then through the plastic water pipe and the mist nozzle at the end, the water pump can spray water evenly at any angle, which can better suppress the flying dust and reduce pollution. During the cleaning process, the screen drum and the frame can also be better cleaned. The sprinkler mechanism can move back and forth, which prevents the sprinkler mechanism from only sprinkling water on one position of the screen drum. The sprinkler device can sprinkle water evenly, which greatly alleviates the flying sand and dust caused by the increase in the amplitude of the screen drum during work, and effectively reduces the pollution of the sand screening operation to the workers' working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the screen drum, eccentric shaft, and screen drum support structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the half gear, lower rack, upper rack, and water pump guide plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the plastic water pipe, water pump and flexible water pipe of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure below the frame of the utility model.

[0018] [reference numerals]

[0019] 1. Frame; 2. Screen drum; 3. Eccentric shaft; 4. Bearing; 5. Driven wheel; 6. Discharge port baffle; 7. Mist nozzle; 8. Plastic water pipe; 9. Water pump; 10. Flexible water pipe; 11. Incomplete gear; 12. Lower rack; 13. Upper rack; 14. Transmission belt; 15. No. 1 motor; 16. Motor seat; 17. Screen drum support; 18. Water pump guide plate; 19. Baffle hinge. DETAILED DESCRIPTION

[0020] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0021] As attached Figure 1 To Attachment Figure 5 The embodiment of the utility model provides an eccentric sand screening machine, comprising a frame 1, a sand screening mechanism is arranged in the middle of the frame 1, and a watering mechanism is arranged on the left side of the frame 1;

[0022] The sand screening mechanism includes a screen drum 2, an eccentric shaft 3, a driven wheel 5, a discharge port baffle 6, a transmission belt 14, a No. 1 motor 15, a motor seat 16, a screen drum support 17, and a baffle hinge 19. The screen drum 2 is fixedly connected to the eccentric shaft 3 through the screen drum support 17, one end of the eccentric shaft 3 is fixedly connected to the driven wheel 5, the No. 1 motor 15 is fixedly installed above the motor seat 16, and the No. 1 motor 15 is transmission-connected to the driven wheel 5 through the transmission belt 14. The frame 1 is fixedly connected to the front and rear bearings 4, the eccentric shaft 3 is rotationally connected to the frame 1 through the bearing 4, and the frame 1 is movably connected to the discharge port baffle 6 through the baffle hinge 19;

[0023] The sprinkler mechanism includes a mist nozzle 7, a plastic water pipe 8, a No. 2 motor, a water pump 9, a flexible water pipe 10, an incomplete gear 11, a lower rack 12, an upper rack 13, and a water pump guide plate 18. The lower rack 12 is fixedly connected to the left side of the frame 1, the upper rack 13 above the lower rack 12 is fixedly connected to the left side of the frame 1, the water pump guide plate 18 is fixedly connected to the left side of the frame 1, the incomplete gear 11 is meshed between the lower rack 12 and the upper rack 13, the incomplete gear 11 and the output end of the No. 2 motor are fixedly connected, the No. 2 motor is installed on the side of the water pump 9 facing the water pump guide plate 18, the water pump 9 is slidably connected to the left side of the water pump guide plate 18, the flexible water pipe 10 is fixedly connected to the bottom of the water pump 9, the lower end of the plastic water pipe 8 is fixedly connected to the top of the water pump 9, and the mist nozzle 7 is connected to the upper end of the plastic water pipe 8.

[0024] By eccentrically rotating the screen drum 2, the sand and gravel adhering in the screen drum 2 can be separated more easily, and the flying dust generated by the large vibration can be reduced by the water sprinkling mechanism.

[0025] The sieve drum 2 is inclined at an angle, and the eccentric shaft 3 is located at a non-axial position of the sieve drum 2 .

[0026] By offsetting the rotating shaft, the vibration amplitude of the screen drum 2 is increased, so that the sand and gravel in the screen drum 2 are more easily separated, thereby improving the sand screening efficiency.

[0027] Wherein, the plastic water pipe 8 is a universal pipe, and the direction can be changed arbitrarily;

[0028] Since the water pipe of the sprinkler mechanism is a universal pipe, the direction can be freely adjusted, so that flying dust can be better suppressed, pollution can be reduced, and the screen drum 2 and the frame 1 can be better cleaned during the cleaning process.

[0029] The working process of the utility model is as follows:

[0030] After adding the material and turning on the switch, the No. 1 motor 15 starts to work, driving the transmission belt 14, the driven wheel 5 starts to rotate, and then drives the screen drum 2 to start eccentric rotation around the eccentric shaft 3, and the sand screening work begins. The screened material is sent out through the discharge port below the frame 1;

[0031] Turn on the sprinkler switch, the water pump 9 pumps water out from the water source through the flexible water pipe 10 connected below, and by adjusting the plastic water pipe 8, water can be evenly sprayed onto the screen drum 2 through the mist nozzle 7 at any angle; the teeth on the incomplete gear 11 will only mesh with one of the lower rack 12 and the upper rack 13 at the same time. When the water pump 9 is located on the right side of the water pump guide plate 18, turn on the No. 2 motor on the side of the water pump 9 facing the water pump guide plate 18, the incomplete gear 11 starts to rotate counterclockwise, meshing with the lower rack 12, not meshing with the upper rack 13, and starts to drive the water pump 9 to move to the left. The incomplete gear 11 rotates half a circle and starts to mesh with the upper rack 13, not meshing with the lower rack 12, and starts to drive the water pump 9 to move to the right, thereby realizing the reciprocating movement of the water pump 9, so that the sprinkler device can sprinkle water more evenly.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An eccentric sand screening machine, comprising a frame (1), characterized in that: A sand screening mechanism is provided in the middle of the frame (1), and a watering mechanism is provided on the left side of the frame (1); The sand screening mechanism comprises a screen drum (2), an eccentric shaft (3), a driven wheel (5), a discharge port baffle (6), a transmission belt (14), a No. 1 motor (15), a motor seat (16), a screen drum support (17), and a baffle hinge (19); the screen drum (2) is fixedly connected to the eccentric shaft (3) via the screen drum support (17); one end of the eccentric shaft (3) is fixedly connected to the driven wheel (5); the No. 1 motor (15) is fixedly installed above the motor seat (16); the No. 1 motor (15) is transmission-connected to the driven wheel (5) via the transmission belt (14); the frame (1) is fixedly connected to bearings (4) at the front and rear; the eccentric shaft (3) is rotationally connected to the frame (1) via the bearing (4); and the frame (1) is movably connected to the discharge port baffle (6) via the baffle hinge (19); The watering mechanism comprises a mist nozzle (7), a plastic water pipe (8), a second motor, a water pump (9), a flexible water pipe (10), an incomplete gear (11), a lower rack (12), an upper rack (13), and a water pump guide plate (18), wherein the lower rack (12) is fixedly connected to the left side of the frame (1), the upper rack (13) above the lower rack (12) is fixedly connected to the left side of the frame (1), the water pump guide plate (18) is fixedly connected to the left side of the frame (1), and the incomplete gear (11) is fixedly connected to the left side of the frame (1). ) is meshed between the lower rack (12) and the upper rack (13), the incomplete gear (11) is fixedly connected to the output end of the second motor, the second motor is installed on the side of the water pump (9) facing the water pump guide plate (18), the water pump (9) is slidably connected to the left side of the water pump guide plate (18), the flexible water pipe (10) is fixedly connected to the bottom of the water pump (9), the lower end of the plastic water pipe (8) is fixedly connected to the top of the water pump (9), and the mist nozzle (7) is connected to the upper end of the plastic water pipe (8).

2. An eccentric sand screening machine according to claim 1, characterized in that: The screen drum (2) is inclined at an angle, and the eccentric shaft (3) is located at a non-axial position of the screen drum (2).

3. The eccentric sand screening machine according to claim 1, characterized in that: The plastic water pipe (8) is a universal pipe and can change direction at will.

Images