Gravel aggregate screening device

Abstract

The utility model relates to the technical field of screening, and discloses a gravel aggregate screening device which comprises a bottom plate, a screening barrel is arranged above the bottom plate, a U-shaped pipe frame is arranged above the bottom plate, and the front face and the rear face of the top end of the U-shaped pipe frame fixedly communicate with a plurality of atomizing nozzles. According to the gravel aggregate screening device, through the arranged screening barrel, gravel aggregate can be screened through rotation under the action of gravity, meanwhile, a matching block is driven to do circular motion in the rotating process of the screening barrel, and in the process of continuously extruding a vibration ball and a vibration plate to turn over and resetting through a torsional spring, the vibration plate is driven to rotate; according to the screening device, the purpose of knocking the screening cylinder is achieved, blockage of filter holes is effectively avoided, a cam is arranged, in the rotating process of the screening cylinder, a piston rod can be linked to reciprocate, the purpose of sucking a water source to be atomized and sprayed out is achieved, the effect of effectively reducing dust on the upper portion of the screening cylinder is achieved, and the environment and the body health of workers are protected.

Description

Technical Field

[0001] The present application relates to the field of screening technology, and in particular to a sand and gravel aggregate screening device. Background Art

[0002] Aggregate is a general term for materials such as sand, pebbles, crushed stones, blocks, and rubble stones in water conservancy projects. Aggregates with a particle size greater than 5 mm are called coarse aggregates, which we often call gravel, and aggregates with a particle size less than 5 mm are called fine aggregates, also known as sand. Aggregates are the main building materials for structures such as concrete and stacked stones in water conservancy projects.

[0003] The existing patent (Announcement No.: CN217411387U) discloses a sand and gravel aggregate screening device, including a bracket, a drum screen is rotatably arranged on the upper end of the bracket, a toothed roller is fixed on the outer side of one end of the drum screen, and a vibration device is rotatably arranged in the middle of the bracket. The vibration device includes a rotating rod rotating on the inner side wall of the upper end of the bracket, a gear meshing with the toothed roller is fixed on the rotating rod, and a vibration assembly is fixed on the rotating rod, and the vibration assembly is arranged in contact with the outer wall of the drum screen. This new type is applied to the sand and gravel aggregate screening device. By setting a vibration device, the gear is driven by the toothed roller, the gear drives the rotating rod, and the rotating rod drives the vibration device. The vibration device contacts the drum screen, slaps and knocks the surface of the drum screen, plays a role of vibration, and makes the sand and gravel particles stuck on the drum screen fall off, which can improve the screening effect and screening efficiency.

[0004] The above device is provided with a vibration device, and the gear is driven by the toothed roller, and the gear drives the rotating rod, and the rotating rod drives the vibration device. The vibration device contacts the drum screen, slaps and knocks the surface of the drum screen, and plays a vibrating role, so that the sand and gravel particles stuck on the drum screen are scattered, which can improve the screening effect and the screening efficiency. However, during its use, dust is generated when the drum screen screens sand and gravel aggregates. At the same time, the vibration device contacts the drum screen, slaps and knocks the surface of the drum screen, which will further increase the amount of smoke and dust, not only polluting the environment, but also endangering the health of construction workers. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a sand and gravel aggregate screening device with advantages such as self-dust removal, which solves the problem that dust will be generated when the drum screen screens sand and gravel aggregates. At the same time, the vibration device contacts the drum screen and beats and knocks the surface of the drum screen, which will further increase the amount of smoke and dust, not only polluting the environment, but also endangering the health of construction workers.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a sand and gravel aggregate screening device, comprising a bottom plate, a screening cylinder is provided above the bottom plate, a U-shaped pipe rack is provided above the bottom plate, and a plurality of atomizing nozzles are fixedly connected to the front and rear surfaces of the top of the U-shaped pipe rack;

[0007] The outer surface of the screening cylinder is fixedly connected to a plurality of groups of matching blocks arranged in a circumference, and both side surfaces of the screening cylinder are provided with a plurality of vibration plates arranged at equal distances, and a vibration ball is fixedly connected to a side of each vibration plate close to the screening cylinder.

[0008] Through the above scheme, the screening drum can be set up to screen the sand and gravel aggregates by rotating under the action of gravity. At the same time, the matching block is driven to make circular motion during the rotation of the screening drum, which can realize the continuous squeezing of the vibration ball and the flipping of the vibration plate and the resetting through the torsion spring, thereby achieving the purpose of knocking the screening drum and effectively avoiding the blockage of the filter holes. Through the set cam, the piston rod can be linked to reciprocate during the rotation of the screening drum, thereby achieving the purpose of absorbing water source and spraying it out in atomization, achieving the effect of effectively reducing dust above the screening drum, and protecting the environment and the health of workers.

[0009] Furthermore, two groups of reset frames are fixedly connected to the upper surface of the bottom plate, a reset shaft is rotatably connected between the front and rear inner side walls of each reset frame, and each vibration plate is fixedly connected to the reset shaft adjacent to it.

[0010] Through the above scheme, by setting the vibration plate and the reset shaft, it is possible to achieve the purpose of the vibration plate driving the reset shaft to flip away from the screening drum when the matching block contacts the vibration ball.

[0011] Furthermore, the front and rear side surfaces of each vibration plate are fixedly connected with torsion springs, and the other end of each torsion spring is fixedly connected to the inner wall of the reset frame adjacent to it.

[0012] Through the above solution and the provision of the torsion spring, the purpose of resetting the vibration plate and the vibration ball can be achieved.

[0013] Furthermore, two support frames are fixedly connected to the upper surface of the bottom plate, and the two ends of the screening drum are rotatably connected to the support frames adjacent thereto.

[0014] Through the above scheme and the setting of the support frame, the purpose of supporting the screening drum can be achieved.

[0015] Furthermore, a water suction cylinder is fixedly connected to the upper surface of the base plate, a piston rod is slidably inserted inside the water suction cylinder, a contact ball is fixedly connected to the top of the piston rod, a spring is fixedly connected to the bottom end of the contact ball, the other end of the spring is fixedly connected to the water suction cylinder, the spring is sleeved with the piston rod, the outer surface of the water suction cylinder is fixedly connected to a water suction pipe and a water outlet pipe respectively, and a one-way valve is installed inside the water suction pipe and the water outlet pipe, the back side of the screening cylinder is fixedly connected to a power shaft, the outer surface of the power shaft is fixedly connected to a cam, and the cam is in contact with the contact ball.

[0016] Through the above scheme, by setting the cam, it can be achieved that when the screening drum rotates, the piston rod is linked to reciprocate up and down.

[0017] Furthermore, the other end of the water suction pipe is fixedly connected to a first hose, the other end of the water outlet pipe is fixedly connected to a second hose, the upper surface of the bottom plate is fixedly connected to a water tank, the first hose is fixedly connected to the water tank, and the second hose is fixedly connected to the U-shaped pipe rack.

[0018] Through the above solution, by providing the first hose and the second hose, the purpose of conveying water can be achieved.

[0019] Furthermore, the rear end of the power shaft is fixedly connected to an external motor output end.

[0020] Through the above scheme, by setting the power shaft, power can be provided for the rotation of the cam and the rotation of the screening drum.

[0021] Furthermore, a plurality of screening holes are provided on the outer surface of the screening cylinder.

[0022] Through the above scheme, the purpose of screening sand and gravel aggregates can be achieved by setting the screening holes.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The sand and gravel aggregate screening device can screen the sand and gravel aggregate by rotating the screening drum under the action of gravity, and at the same time drive the matching block to do circular motion during the rotation of the screening drum, so as to realize the purpose of knocking the screening drum by continuously squeezing the vibration ball and the vibration plate and resetting them through the torsion spring, and effectively avoid the blockage of the filter hole; through the provided cam, the piston rod can be linked to reciprocate during the rotation of the screening drum, so as to realize the purpose of absorbing water source and spraying it in atomization, and achieve the effect of effectively reducing dust above the screening drum, thereby protecting the environment and the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the overall structure of this application Figure 1 ;

[0026] Figure 2 This is the right view of the overall structure of this application;

[0027] Figure 3 A three-dimensional diagram of the overall structure of this application Figure 2 ;

[0028] Figure 4 This is a cross-sectional view of the overall structure of this application.

[0029] In the figure:

[0030] 1. Bottom plate; 2. Screening cylinder; 3. U-shaped pipe rack; 4. Atomizing nozzle; 5. Matching block; 6. Vibrating plate; 7. Vibrating ball; 8. Reset frame; 9. Reset shaft; 10. Torsion spring; 11. Support frame; 12. Water suction cylinder; 13. Piston rod; 14. Contact ball; 15. Spring; 16. Water suction pipe; 17. Water outlet pipe; 18. One-way valve; 19. Power shaft; 20. Cam; 21. First hose; 22. Second hose; 23. Water tank; 24. Screening hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and Figure 3 A sand and gravel aggregate screening device in this embodiment includes a base plate 1, a screening drum 2 is provided above the base plate 1, and a plurality of screening holes 24 are provided on the outer surface of the screening drum 2. The screening holes 24 are arranged to screen the sand and gravel aggregates. Two support frames 11 are fixedly connected to the upper surface of the base plate 1. The two ends of the screening drum 2 are rotatably connected to the support frames 11 adjacent to them. The support frames 11 are arranged to support the screening drum 2. A U-shaped pipe rack 3 is provided above the base plate 1. A plurality of atomizing nozzles 4 are fixedly connected to the front and rear surfaces of the top of the U-shaped pipe rack 3.

[0033] See also Figure 1 , Figure 2 and Figure 3 , a plurality of groups of circumferentially arranged matching blocks 5 are fixedly connected to the outer surface of the screening drum 2, a plurality of equidistantly arranged vibration plates 6 are provided on both sides of the screening drum 2, a vibration ball 7 is fixedly connected to a side of each vibration plate 6 close to the screening drum 2, two groups of reset frames 8 are fixedly connected to the upper surface of the bottom plate 1, a reset shaft 9 is rotatably connected between the front and rear inner side walls of each reset frame 8, each vibration plate 6 is fixedly connected to the reset shaft 9 close to it, and through the arrangement of the vibration plate 6 and the reset shaft 9, when the matching block 5 contacts the vibration ball 7, the vibration plate 6 drives the reset shaft 9 to flip away from the screening drum 2, the front and rear sides of each vibration plate 6 are fixedly connected to a torsion spring 10, the other end of each torsion spring 10 is fixedly connected to the inner wall of the reset frame 8 close to it, and through the arrangement of the torsion spring 10, the reset purpose of the vibration plate 6 and the vibration ball 7 can be achieved.

[0034] See also Figure 1 , Figure 2 and Figure 4 In addition, a water suction cylinder 12 is fixedly connected to the upper surface of the bottom plate 1, a piston rod 13 is slidably inserted inside the water suction cylinder 12, a contact ball 14 is fixedly connected to the top end of the piston rod 13, a spring 15 is fixedly connected to the bottom end of the contact ball 14, the other end of the spring 15 is fixedly connected to the water suction cylinder 12, the spring 15 is sleeved with the piston rod 13, the outer surface of the water suction cylinder 12 is fixedly connected to a water suction pipe 16 and a water outlet pipe 17, and a one-way valve 18 is installed inside the water suction pipe 16 and the water outlet pipe 17.

[0035] See also Figure 1 , Figure 2 and Figure 4 In addition, a power shaft 19 is fixedly connected to the back of the screening drum 2, and a cam 20 is fixedly connected to the outer surface of the power shaft 19. The cam 20 is in contact with the contact ball 14. Through the setting of the cam 20, when the screening drum 2 rotates, the linked piston rod 13 can reciprocate up and down. The rear end of the power shaft 19 is fixedly connected to the external motor output end. Through the setting of the power shaft 19, power can be provided for the rotation of the cam 20 and the rotation of the screening drum 2.

[0036] See also Figure 1 , Figure 2 and Figure 4 At the same time, the other end of the water suction pipe 16 is fixedly connected to the first hose 21, the other end of the water outlet pipe 17 is fixedly connected to the second hose 22, the upper surface of the bottom plate 1 is fixedly connected to the water tank 23, the first hose 21 is fixedly connected to the water tank 23, and the second hose 22 is fixedly connected to the U-shaped pipe rack 3. Through the arrangement of the first hose 21 and the second hose 22, the purpose of transporting water can be achieved.

[0037] A sand and gravel aggregate screening device in the present embodiment can screen sand and gravel aggregates by rotating the screening drum 2 under the action of gravity, and at the same time, the matching block 5 is driven to make a circular motion during the rotation of the screening drum 2, so that the vibration ball 7 and the vibration plate 6 can be continuously squeezed and flipped, and the torsion spring 10 can be used to reset the device, thereby achieving the purpose of knocking the screening drum 2 and effectively avoiding the blockage of the filter hole. The cam 20 can be used to link the piston rod 13 to reciprocate during the rotation of the screening drum 2, thereby achieving the purpose of absorbing water source and spraying it out in atomization, achieving the effect of effectively reducing dust above the screening drum 2, and protecting the environment and the health of workers.

[0038] It should be noted that the water source inside the water tank 23 can be replenished.

[0039] The working principle of the above embodiment is as follows: when in use, the external motor is started to drive the screening drum 2 to rotate and screen the material. During the rotation of the screening drum 2, the matching block 5 is driven to move in a circle. When the curved surface of the matching block 5 contacts the vibrating ball 7, the vibrating ball 7 and the vibrating plate 6 can be flipped, and the torsion spring 10 can be compressed. When the matching block 5 is separated from the vibrating ball 7, the vibrating ball 7 can be quickly reset to contact the screening drum 2, thereby achieving the purpose of tapping and knocking the screening drum 2 and avoiding clogging of the filter holes. During the rotation of the screening drum 2, the cam 20 is driven to rotate, and the cam 20 can squeeze the piston rod 13 to move as a piston under the reset of the spring 15. Through the setting of the one-way valve 18, the water source of the water tank 23 is continuously sucked and transported to the U-shaped pipe rack 3, and sprayed from the atomizing nozzle 4 to reduce the dust.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sand and gravel aggregate screening device, comprising a bottom plate (1), characterized in that: A screening cylinder (2) is provided above the bottom plate (1), a U-shaped pipe rack (3) is provided above the bottom plate (1), and a plurality of atomizing nozzles (4) are fixedly connected to the front and rear surfaces of the top end of the U-shaped pipe rack (3); The outer surface of the screening cylinder (2) is fixedly connected to a plurality of groups of matching blocks (5) arranged in a circumferential manner, and the two side surfaces of the screening cylinder (2) are provided with a plurality of vibration plates (6) arranged at equal distances, and a vibration ball (7) is fixedly connected to a surface of each vibration plate (6) close to the screening cylinder (2).

2. A sand and gravel aggregate screening device according to claim 1, characterized in that: Two groups of reset frames (8) are fixedly connected to the upper surface of the bottom plate (1), a reset shaft (9) is rotatably connected between the front and rear inner side walls of each reset frame (8), and each vibration plate (6) is fixedly connected to the reset shaft (9) adjacent thereto.

3. The sand and gravel aggregate screening device according to claim 1, characterized in that: The front and rear side surfaces of each vibration plate (6) are fixedly connected to a torsion spring (10), and the other end of each torsion spring (10) is fixedly connected to the inner wall of the reset frame (8) adjacent thereto.

4. The sand and gravel aggregate screening device according to claim 1, characterized in that: Two support frames (11) are fixedly connected to the upper surface of the bottom plate (1), and the two ends of the screening drum (2) are rotatably connected to the support frames (11) adjacent thereto.

5. The sand and gravel aggregate screening device according to claim 1, characterized in that: A water suction cylinder (12) is fixedly connected to the upper surface of the bottom plate (1), a piston rod (13) is slidably inserted inside the water suction cylinder (12), a contact ball (14) is fixedly connected to the top end of the piston rod (13), a spring (15) is fixedly connected to the bottom end of the contact ball (14), the other end of the spring (15) is fixedly connected to the water suction cylinder (12), the spring (15) is sleeved with the piston rod (13), the outer surface of the water suction cylinder (12) is fixedly connected to a water suction pipe (16) and a water outlet pipe (17), and a one-way valve (18) is installed inside the water suction pipe (16) and the water outlet pipe (17), the back side of the screening cylinder (2) is fixedly connected to a power shaft (19), the outer surface of the power shaft (19) is fixedly connected to a cam (20), and the cam (20) is in contact with the contact ball (14).

6. A sand and gravel aggregate screening device according to claim 5, characterized in that: The other end of the water suction pipe (16) is fixedly connected to a first hose (21), the other end of the water outlet pipe (17) is fixedly connected to a second hose (22), the upper surface of the bottom plate (1) is fixedly connected to a water tank (23), the first hose (21) is fixedly connected to the water tank (23), and the second hose (22) is fixedly connected to the U-shaped pipe rack (3).

7. A sand and gravel aggregate screening device according to claim 6, characterized in that: The rear end of the power shaft (19) is fixedly connected to an external motor output end.

8. The sand and gravel aggregate screening device according to claim 1, characterized in that: The outer surface of the screening cylinder (2) is provided with a plurality of screening holes (24).

Images