Civil engineering sand screening machine

Abstract

The utility model relates to the technical field of civil engineering, and discloses a civil engineering sand screening machine which comprises a workbench. According to the civil engineering sand screening machine, through the arrangement of a driving mechanism, a grinding rod, a screening net and a vibration motor, when the civil engineering sand screening machine is used, gravel is put in from a feeding opening, a servo motor at the feeding opening is started, and the servo motor drives a main gear on one side and an auxiliary gear with the meshed surface to rotate together; and then crushing rods on one sides of the main gear and the auxiliary gear rotate relatively, large-particle sand and stones are crushed and fall into a screening net at the bottom, a vibration motor at the bottom of the screening net is started, the vibration motor drives the screening net at the top to vibrate under the action of centrifugal force, and therefore the effect of screening the sand and stones is achieved. And the screened fine sand can be conveyed to a designated position from the conveying belt at the bottom, it is ensured that the sizes of particles in the original materials are more uniform, and therefore the quality and uniformity of screened products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a civil engineering sand screening machine. Background Art

[0002] Civil engineering is the planning, construction and maintenance of all infrastructure related to culture, soil and water. It refers to the various technical work such as investigation, planning, design and construction for the new construction, reconstruction or expansion of buildings and related supporting facilities of various projects, as well as the completed engineering entities. Civil engineering often uses sand screening machines to screen stones and impurities in the sand and select fine sand for use.

[0003] The existing civil engineering sand screening machine will generate a lot of dust when working, which is harmful to the health of workers, and it is not easy to crush large sand and gravel to ensure that the particle size in the original material is more uniform, thereby improving the quality and uniformity of the screened product. Therefore, a civil engineering sand screening machine is proposed.

[0004] A civil engineering sand screening machine disclosed in the announcement number CN210632443U includes a screening mechanism, a supporting mechanism is arranged on the screening mechanism, the supporting mechanism includes a base, a controller, and a conveying frame, the controller is installed at the front of the base, the conveying frame is arranged above the base, a No. 1 motor is installed at the front of the conveying frame, a roller is installed inside the conveying frame, a conveyor belt is arranged on the roller, a feeding frame is arranged on one side of the conveying frame, a water tank is arranged on the side of the feeding frame, an atomizer is installed inside the water tank, a fan is installed above the water tank, and a mist outlet pipe is arranged on the fan. The utility model has a simple structure, is easy to operate, saves manpower, not only improves practicality, but also ensures the health of workers.

[0005] Although the above patent has achieved simple structure, easy operation, and labor saving, which not only improves practicality but also ensures the health of workers, the device lacks the ability to crush large particles of sand and gravel to ensure that the particle size in the original material is more uniform, thereby improving the quality and uniformity of the screened products.

[0006] Therefore, it is necessary to invent a civil engineering sand screening machine to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a civil engineering sand screening machine which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problem of lack of crushing of large particles of sand and gravel raised in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a civil engineering sand screening machine comprises a workbench, the top surface of the workbench is fixedly connected to a conveyor belt, the bottom of the workbench is fixedly connected to an auxiliary mechanism, the edge of one side of the top surface of the workbench is fixedly connected to a screening bin, two groups of buffer rods are fixedly connected inside the screening bin, the top of the buffer rod is fixedly connected to a screening net, one side of the screening net is rotatably connected to a baffle, the bottom of the screening net is fixedly connected to a storage box, the inside of the storage box is fixedly connected to a vibration motor, a feed port is provided at the top of the screening bin, one side of the feed port is threadedly connected to a motor box, the inside of the motor box is fixedly connected to a driving mechanism, one side of the driving mechanism is fixedly connected to two groups of crushing rods, the surfaces of the screening bin and the feed port are threadedly connected to a dust suction head, and one side of the dust suction head is connected to a dust suction mechanism.

[0011] As a further solution of the utility model, the driving mechanism includes a servo motor fixedly connected to the inside of the motor box, the output end of the servo motor is splined with a transmission rod, one end of the transmission rod is fixedly connected to a main gear, the surface of the main gear is meshed with an auxiliary gear, and the crushing rod is fixedly connected to one side of the main gear and the auxiliary gear, and the crushing rod facilitates crushing large particles of sand and gravel.

[0012] As a further solution of the utility model, the dust suction mechanism includes a hose connected to one side of the dust suction head, one end of the hose is connected to a collection box, a suction fan is fixedly connected to the interior of the collection box, and two groups of collection net bags are placed inside the collection box to facilitate collecting dust.

[0013] As a further solution of the utility model, an observation window is provided on one side of the screening bin. The material of the observation window is acrylic, and the observation window is convenient for observing the internal situation.

[0014] As a further solution of the utility model, four groups of threaded holes are opened on the surface of the motor box, and the internal threads of the threaded holes are connected with threaded columns. The threaded columns are convenient for fixing the motor box and improving the stability of the motor box.

[0015] As a further solution of the utility model, the surface of the hose is provided with a limit ring, and the surface of the collection box is provided with a plurality of through holes for venting.

[0016] (III) Beneficial effects

[0017] The utility model provides a civil engineering sand screening machine, which has the following beneficial effects:

[0018] 1. The civil engineering sand screening machine is equipped with a driving mechanism, a crushing rod, a screening net, and a vibration motor. When in use, the sand and gravel are placed from the feed port, and the servo motor at the feed port is started. The servo motor drives the main gear on one side and the auxiliary gear meshing on the surface to rotate together, thereby making the crushing rods on one side of the main gear and the auxiliary gear rotate relatively, crushing the large particles of sand and gravel and dropping them onto the screening net at the bottom, and starting the vibration motor at the bottom of the screening net. The vibration motor drives the top screening net to vibrate under the action of centrifugal force, so as to achieve the effect of screening the sand and gravel. The screened fine sand will be transported to the designated position from the conveyor belt at the bottom to ensure that the particle size in the original material is more uniform, thereby improving the quality and uniformity of the screened products.

[0019] 2. The civil engineering sand screening machine, through the setting of the dust suction mechanism and the dust suction head, starts the two sets of suction fans inside the collection box when collecting dust. The suction fans generate suction at the two sets of dust suction heads, and the dust generated at the feed port and one side of the screening bin is sucked into the collection net bag inside the collection box through a hose for unified storage, so as to avoid the dust generated during the screening process being inhaled into the lungs of the staff and causing harm to the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the driving mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the screening net of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the dust collection mechanism of the utility model;

[0024] Figure 5 This is a schematic diagram of the auxiliary mechanism structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the hydraulic rod of the utility model.

[0026] In the figure: 1. workbench; 2. conveyor belt; 3. auxiliary mechanism; 301. support leg; 302. anti-skid pad; 303. U-shaped telescopic frame; 304. support plate; 305. hydraulic rod; 4. screening bin; 5. buffer rod; 6. screening net; 7. baffle; 8. storage box; 9. vibration motor; 10. feed inlet; 11. motor box; 12. driving mechanism; 1201. servo motor; 1202. transmission rod; 1203. main gear; 1204. auxiliary gear; 13. crushing rod; 14. dust suction mechanism; 1401. hose; 1402. collection box; 1403. suction fan; 1404. collection net bag; 15. observation window; 16. threaded column; 17. limit ring; 18. dust suction head. DETAILED DESCRIPTION

[0027] 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. 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.

[0028] See also Figures 1 to 6 The utility model provides a technical solution: a civil engineering sand screening machine comprises a workbench 1, a conveyor belt 2 is fixedly connected to the top surface of the workbench 1, an auxiliary mechanism 3 is fixedly connected to the bottom of the workbench 1, a screening bin 4 is fixedly connected to the edge of one side of the top surface of the workbench 1, two groups of buffer rods 5 are fixedly connected inside the screening bin 4, a screening net 6 is fixedly connected to the top of the buffer rod 5, a baffle 7 is rotatably connected to one side of the screening net 6, a storage box 8 is fixedly connected to the bottom of the screening net 6, a vibration motor 9 is fixedly connected to the inside of the storage box 8, a feeding port 10 is opened on the top of the screening bin 4, and one side of the feeding port 10 is threadedly connected to The motor box 11 is fixedly connected with a driving mechanism 12 inside the motor box 11. The driving mechanism 12, the crushing rods 13, the screening net 6 and the vibration motor 9 are arranged to ensure that the particle size in the raw material is more uniform, thereby improving the quality and uniformity of the screened product. Two groups of crushing rods 13 are fixedly connected to one side of the driving mechanism 12. The surfaces of the screening bin 4 and the feed port 10 are both threadedly connected with a dust suction head 18. One side of the dust suction head 18 is connected with a dust suction mechanism 14. The dust suction mechanism 14 and the dust suction head 18 are arranged to prevent the dust generated during the screening process from being inhaled into the lungs of the staff and causing harm to the body.

[0029] See also Figure 2The driving mechanism 12 includes a servo motor 1201 fixedly connected to the inside of the motor box 11, the output end of the servo motor 1201 is spline-connected with a transmission rod 1202, one end of the transmission rod 1202 is fixedly connected with a main gear 1203, the surface of the main gear 1203 is meshed with an auxiliary gear 1204, and a crushing rod 13 is fixedly connected to one side of the main gear 1203 and the auxiliary gear 1204, and the crushing rod 13 is convenient for crushing large particles of sand and stone;

[0030] See also Figure 4 The dust collecting mechanism 14 includes a hose 1401 connected to one side of the dust collecting head 18, one end of the hose 1401 is connected to a collection box 1402, a suction fan 1403 is fixedly connected to the interior of the collection box 1402, and two groups of collection net bags 1404 are placed inside the collection box 1402, and the collection net bags 1404 are convenient for collecting dust;

[0031] See also Figure 1 An observation window 15 is provided on one side of the screening bin 4. The material of the observation window 15 is acrylic. The observation window 15 facilitates observation of the internal conditions.

[0032] See also Figure 1 The surface of the motor box 11 is provided with four groups of threaded holes, and the internal threads of the threaded holes are connected with threaded columns 16, which are convenient for fixing the motor box 11 and improving the stability of the motor box 11;

[0033] See also Figure 1 The surface of the hose 1401 is provided with a joint limiting ring 17, and the surface of the collection box 1402 is provided with a plurality of through holes for venting.

[0034] Embodiment 1:

[0035] See also Figure 5 The auxiliary mechanism 3 includes four groups of supporting legs 301 fixedly connected to the bottom of the workbench 1, and the bottom of the supporting legs 301 is fixedly connected with an anti-slip pad 302. Through the setting of the auxiliary mechanism 3, the device is supported and the stability of the device is improved;

[0036] Embodiment 2:

[0037] See also Figure 6 The auxiliary mechanism 3 includes two sets of U-shaped telescopic frames 303 fixedly connected to the bottom of the workbench 1, the upper surface of the U-shaped telescopic frame 303 is fixedly connected to a support plate 304, and the bottom of the support plate 304 is fixedly connected to a hydraulic rod 305. The U-shaped telescopic frame 303 and the hydraulic rod 305 are arranged to drive the equipment to rise and fall, making it convenient for people of different heights to use.

[0038] In the utility model, the working steps of the device are as follows:

[0039] The first step: when using, put sand and stone into the feed port 10, start the servo motor 1201 at the feed port 10, the servo motor 1201 drives the main gear 1203 on one side and the auxiliary gear 1204 meshing on the surface to rotate together, so that the crushing rod 13 on one side of the main gear 1203 and the auxiliary gear 1204 rotates relatively, and the large particles of sand and stone are crushed and fall onto the screening net 6 at the bottom, and the vibration motor 9 at the bottom of the screening net 6 is started. The vibration motor 9 drives the top screening net 6 to vibrate under the action of centrifugal force, so as to achieve the effect of screening the sand and stone, and the screened fine sand will be transported to the designated position from the conveyor belt 2 at the bottom;

[0040] The second step: when collecting dust, start the two sets of suction fans 1403 inside the collection box 1402. The suction fans 1403 generate suction at the two sets of dust suction heads 18, and suck the dust generated on one side of the feed port 10 and the screening bin 4 into the collection net bag 1404 inside the collection box 1402 through the hose 1401 for unified storage.

[0041] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0042] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A civil engineering sand screening machine, comprising a workbench (1), characterized in that: The top surface of the workbench (1) is fixedly connected to a conveyor belt (2), the bottom of the workbench (1) is fixedly connected to an auxiliary mechanism (3), the edge of one side of the top surface of the workbench (1) is fixedly connected to a screening bin (4), the interior of the screening bin (4) is fixedly connected to two groups of buffer rods (5), the top of the buffer rods (5) is fixedly connected to a screening net (6), one side of the screening net (6) is rotatably connected to a baffle (7), the bottom of the screening net (6) is fixedly connected to a storage box (8), and the storage box (8) is fixedly connected to the storage box (8). ) is fixedly connected to a vibration motor (9) inside, a feeding port (10) is provided on the top of the screening bin (4), a motor box (11) is threadedly connected to one side of the feeding port (10), a driving mechanism (12) is fixedly connected to the inside of the motor box (11), two groups of crushing rods (13) are fixedly connected to one side of the driving mechanism (12), a dust collector (18) is threadedly connected to the surface of the screening bin (4) and the feeding port (10), and a dust collector (14) is connected to one side of the dust collector (18).

2. A civil engineering sand screening machine according to claim 1, characterized in that: The driving mechanism (12) comprises a servo motor (1201) fixedly connected to the inside of the motor box (11); the output end of the servo motor (1201) is spline-connected to a transmission rod (1202); one end of the transmission rod (1202) is fixedly connected to a main gear (1203); the surface of the main gear (1203) is meshed with an auxiliary gear (1204); and the crushing rod (13) is fixedly connected to one side of the main gear (1203) and the auxiliary gear (1204).

3. A civil engineering sand screening machine according to claim 1, characterized in that: The dust suction mechanism (14) comprises a hose (1401) connected to one side of the dust suction head (18); one end of the hose (1401) is connected to a collection box (1402); a suction fan (1403) is fixedly connected to the interior of the collection box (1402); and two groups of collection net bags (1404) are placed inside the collection box (1402).

4. A civil engineering sand screening machine according to claim 1, characterized in that: An observation window (15) is provided on one side of the screening bin (4), and the material of the observation window (15) is acrylic.

5. The civil engineering sand screening machine according to claim 1, characterized in that: The surface of the motor box (11) is provided with four groups of threaded holes, and the internal threads of the threaded holes are connected with threaded columns (16).

6. A civil engineering sand screening machine according to claim 3, characterized in that: The surface of the hose (1401) is provided with a joint limiting ring (17), and the surface of the collection box (1402) is provided with a plurality of through holes.

Images