A sand screening machine for construction machinery

Abstract

The present invention discloses a sand screening machine of the construction machinery type, including a box body, the bottom surface of the box body is a hollow structure, and three telescopic rods are welded equidistantly along the vertical center line on the inner surface walls on both sides of the box body, and the outer surfaces of the three telescopic rods are sleeved with compression springs, and one end of the three telescopic rods is welded with an elastic soft plate, and a rubber layer is attached to the outer surface of one side of the elastic soft plate. In the present invention, the round rod drives the rotation of the circular ring disk by starting the first motor, so that the linkage rod can be driven to move better through the second support rod, so that it can better drive the movement of the hollow cylinder through the linkage rod, and the hollow cylinder can be better moved left and right on the sliding rod, so that it can better drive the two screen frames to move left and right, so that the sand can be better screened, so that it can better prevent the sand from falling, so that the workload of workers picking up can be better reduced, and the sand can be used conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field of construction machinery equipment, and in particular relates to a sand screening machine of the construction machinery type. Background Art

[0002] With the continuous development of my country's economic construction and the acceleration of urbanization, my country's urban infrastructure and real estate development industries have developed rapidly, promoting the rapid increase in concrete production. Commercial concrete production is an important reform to change the traditional on-site dispersed mixing concrete production method and realize the industrialization of construction. In construction, sand of different diameters is usually required to meet the construction needs of different occasions. Sand screening machine, as a mechanized sand screening device, not only saves a lot of manpower and material resources, but also greatly improves the efficiency of sand screening.

[0003] However, the existing sand screening machine screens the sand by vibrating up and down. When vibrating up and down, the sand is easily dropped on the ground. Therefore, in the later processing, workers are required to pick up the sand on the ground. Since the sand is fine, it is extremely difficult to pick up the sand on the ground, which will cause the workers to spend a lot of time picking it up. At the same time, when picking up the sand, a large amount of impurities on the ground will be taken away, so that the interior of the sand is mixed with the necessary impurities, and the sand cannot be better used. After screening, the existing sand screening machine needs to clear the impurities on the screen. The existing cleaning method is that the workers clear the impurities on the screen little by little, which will cause the workers to spend a lot of time, thereby reducing the workers' work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a sand screening machine for construction machinery in order to solve the problems that the screen vibrates up and down and sand easily falls off, and it is inconvenient to remove impurities on the screen.

[0005] The technical solution adopted by the present invention is as follows: a sand screening machine of the construction machinery type, including a box body, the bottom surface of the box body is a hollow structure, and three telescopic rods are welded equidistantly along the vertical center line on the inner surface walls on both sides of the box body, and the outer surfaces of the three telescopic rods are sleeved with compression springs, and one end of the three telescopic rods is welded with an elastic soft plate, and a rubber layer is attached to the outer surface of one side of the elastic soft plate, a frame is welded to the outer surface of one side of the box body, and a base is welded to the inner bottom surface of the frame, and a first motor is fixed on the top of the base, and a round rod is welded to the top of the first motor through a rotating shaft. A circular ring disk is welded to the top of the round rod, a fixed block is welded at the center of the outer surface of one side of the box body, a through hole is opened in the vertical direction at the top of the fixed block near one side edge, and the inner surface wall of the through hole is slidably embedded in the outer surface of the round rod, sliding rods are welded at the inner surface walls on both sides of the box body near the top edge, and a hollow cylinder is slidably sleeved on the outer surface of the sliding rod, a first support rod is welded at the top of the hollow cylinder near one end edge, a second support rod is welded at the top of the circular ring disk near the edge, and a linkage rod is slidably penetrated by the outer surface of the first support rod and the outer surface of the second support rod.

[0006] Among them, fixed plates are welded at the bottom of the hollow cylinder near the edges of both ends. There are two fixed plates in total, and two sliding grooves are provided on the outer surfaces of one side of the two fixed plates near the upper and lower edges along the horizontal direction. There are four sliding grooves in total, and they are divided into two groups. Three arc grooves are evenly spaced on the inner wall of one side of each group of two sliding grooves in the vertical direction, and a plurality of sliding beads are evenly spaced and embedded in the inner wall of the arc groove for sliding.

[0007] Among them, a slider is slidably embedded in the inner surface wall of each group of two slide grooves, and the outer surface of one side of the slider is slidably embedded in the outer surface of the slide ball. There are four sliders in total, which are divided into two groups. A screen frame is welded to the outer surface of the other side of each group of two sliders, and a pull rod is welded at the center of the front surface of the screen frame.

[0008] Among them, a square block is welded at the center of the outer surface of one side of the two fixed plates, a straight rod is welded at the center of the bottom of the two square blocks and the bottom of the hollow cylinder close to one side of each fixed plate, and a circular ring is welded at the bottom end of the straight rod.

[0009] There are two screen frames in total, and two baffles are welded on the top of the two screen frames near the edges on both sides. A rotating rod is slidably embedded between the two baffles. A pull hook slides through the outer surface of the rotating rod, and the outer surface of the pull hook is engaged with the inner wall of the circular ring.

[0010] Among them, circular holes are opened on the front surfaces of the two fixed plates near the upper and lower edges, and a strong spring is welded to the inner wall of the circular hole. An L-shaped rod is welded to one end of the strong spring. There are four L-shaped rods in total, which are divided into two groups. The outer surfaces of the two L-shaped rods in each group are attached to the outer surface of each screen frame.

[0011] A feed funnel is welded at the top center of the box body, and the bottom end of the feed funnel extends to the inside of the box body. Support rods are welded at the centers of the outer surfaces on both sides of the feed funnel in the vertical direction, and the bottom ends of the support rods are welded to the top of the box body.

[0012] Among them, a second motor is fixed on the top of the box body near one side edge, and a rotating rod is welded to the outer surface of one side of the second motor through a rotating shaft, and one end of the rotating rod extends to the interior of the feed funnel, and one end of the rotating rod is slidably embedded in the inner surface wall of one side of the feed funnel, and four baffle plates are welded at equal distances on the outer surface of the rotating rod.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] 1. In the present invention, two screen frames are provided, so that the sand can be screened more thoroughly. Since the bottom surface of the box body is a hollow structure, the screened sand can be better transported and used, making it more convenient to use and improving the use effect of the sand screening machine.

[0015] 2. In the present invention, the first motor is started, so that the round rod drives the annular disk to rotate, so that the second support rod can better drive the linkage rod to move, so that the linkage rod can better drive the movement of the hollow cylinder, so that the hollow cylinder can better move left and right on the slide rod, so that the two screen frames can better move left and right, so that the sand can be better screened and the sand can be better prevented from falling, so that the workload of the worker picking up the sand can be better reduced, and the use of the sand is convenient.

[0016] 3. In the present invention, the L-shaped rod is separated from the screen frame by rotating the L-shaped rod, and the hook is separated from the circular ring by rotating the hook. The screen frame can be taken out better by pulling the pull rod, and the impurities inside the screen frame can be removed more conveniently, which can better save the workers' time and facilitate the subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional view of the present invention;

[0018] Figure 2It is a top view of the box body in the present invention;

[0019] Figure 3 It is an enlarged front view of the screen frame part of the present invention;

[0020] Figure 4 It is an enlarged front view of the telescopic rod part of the present invention;

[0021] Figure 5 It is a front cross-sectional view of the bottom of the feed funnel in the present invention;

[0022] Figure 6 It is a left side cross-sectional view of the bottom of the feed hopper in the present invention;

[0023] Figure 7 It is an enlarged cross-sectional view of the circular hole part in the present invention.

[0024] Markings in the figure: 1. base; 2. first motor; 3. through hole; 4. fixed block; 5. round rod; 6. frame; 7. circular ring disk; 8. second support rod; 9. linkage rod; 10. support rod; 11. feed hopper; 12. baffle plate; 13. rotating rod; 14. second motor; 15. first support rod; 16. sliding rod; 17. hollow cylinder; 18. box; 19. elastic soft plate; 20. rubber layer; 21. fixed plate; 22. screen frame; 23. hook; 24. straight rod; 25. circular ring; 26. baffle plate; 27. rotating rod; 28. slide groove; 29. ​​arc groove; 30. sliding ball; 31. slider; 32. pull rod; 33. round hole; 34. L-shaped rod; 35. compression spring; 36. telescopic rod; 37. strong spring; 38. square block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Embodiment 1, refer to Figure 1 and 2A sand screening machine of the construction machinery type comprises a box body 18, a frame 6 is welded to the outer surface of one side of the box body 18, a base 1 is welded to the inner bottom surface of the frame 6, a first motor 2 is fixed to the top of the base 1, the first motor 2 adopts the model of YE2, a round rod 5 is welded to the top of the first motor 2 through a rotating shaft, a circular ring disk 7 is welded to the top of the circular rod 5, a fixing block 4 is welded to the center of the outer surface of one side of the box body 18, a through hole 3 is opened in the vertical direction at the top of the fixing block 4 near one side edge, and the inner surface wall of the through hole 3 is slidably embedded with the outer surface of the circular rod 5, sliding rods 16 are welded to the inner surface walls of both sides of the box body 18 near the top edge, a hollow cylinder 17 is slidably sleeved on the outer surface of the sliding rod 16, a first support rod 15 is welded to the top of the hollow cylinder 17 near one end edge, and the top of the circular ring disk 7 near the edge A second support rod 8 is welded, and a linkage rod 9 is slidably penetrated through the outer surface of the first support rod 15 and the outer surface of the second support rod 8. By starting the first motor 2, the round rod 5 drives the annular disk 7 to rotate, so that the linkage rod 9 can be better driven to move through the second support rod 8, so that it can better drive the movement of the hollow cylinder 17 through the linkage rod 9, and the hollow cylinder 17 can be better moved left and right on the slide rod 16, so that it can better drive the two screen frames 22 to move left and right, so that the sand can be better screened, so that it can better prevent the sand from falling, so as to better reduce the workload of the workers to pick up the sand, and facilitate the use of the sand. The through hole 3 on the fixed block 4 can better make the round rod 5 more stable when rotating, thereby increasing its stability in use.

[0027] Example 2, refer to Figure 3 and 7A fixing plate 21 is welded to the bottom of the hollow cylinder 17 near the edges of both ends. There are two fixing plates 21 in total, and two slide grooves 28 are provided on the outer surfaces of one side of the two fixing plates 21 near the upper and lower edges in the horizontal direction. There are four slide grooves 28 in total, and they are divided into two groups. Three arc grooves 29 are evenly spaced on the inner surface wall of one side of each group of two slide grooves 28 in the vertical direction, and a plurality of sliding balls 30 are evenly slidably embedded on the inner surface wall of the arc groove 29. A slider 31 is slidably embedded on the inner surface wall of each group of two slide grooves 28, and the outer surface of one side of the slider 31 is slidably embedded with the outer surface of the sliding ball 30. There are four sliders 31 in total, and they are divided into There are two groups, and a screen frame 22 is welded on the outer surface of the other side of the two sliders 31 of each group, and a pull rod 32 is welded at the center of the front surface of the screen frame 22. A square block 38 is welded at the center of the outer surface of one side of the two fixed plates 21. A straight rod 24 is welded at the bottom center of the two square blocks 38 and the bottom of the hollow cylinder 17 near one side of each fixed plate 21. A ring 25 is welded at the bottom end of the straight rod 24. There are two screen frames 22 in total, and two baffles 26 are welded at the top of the two screen frames 22 near the edges on both sides. A rotating rod 27 is slidably embedded between the two baffles 26, and a draw hook 23 is slidably penetrated on the outer surface of the rotating rod 27, and the outer surface of the draw hook 23 is connected to the The inner surface wall of the circular ring 25 is snap-fitted and connected, and circular holes 33 are provided on the front surfaces of the two fixing plates 21 near the upper and lower edges. A strong spring 37 is welded to the inner surface wall of the circular hole 33, and an L-shaped rod 34 is welded to one end of the strong spring 37. There are four L-shaped rods 34 in total, and they are divided into two groups. The outer surface of each group of two L-shaped rods 34 is attached to the outer surface of each screen frame 22. The L-shaped rod 34 is separated from the screen frame 22 by rotating the L-shaped rod 34, and the hook 23 is separated from the circular ring 25 by rotating the hook 23. The pull rod 32 is pulled so that the screen frame 22 can be better taken out. When the impurities inside 22 are cleared, it can be more convenient, so that it can better save the workers' time and facilitate the subsequent work. By sliding and embedding multiple sliding beads 30 on the inner surface wall of the slide groove 28, it can be more convenient to pull out the screen frame 22. At the same time, when the screen frame 22 is fixed, the elastic force of the strong spring 37 is used to make the L-shaped rod 34 and the front surface of the screen frame 22 tightly attached. The hook 23 and the ring 25 are engaged and connected to each other, so that the screen frame 22 can be better fixed, so that the screen frame 22 can be more stable when in use, thereby improving the use effect of the sand screening machine.

[0028] Example 3, refer to Figure 4 , 5and 6. The bottom surface of the box body 18 is a hollow structure, and three telescopic rods 36 are welded equidistantly on the inner wall of both sides of the box body 18 along the vertical center line. The outer surfaces of the three telescopic rods 36 are sleeved with compression springs 35. One end of the three telescopic rods 36 is welded with an elastic soft plate 19, and the outer surface of one side of the elastic soft plate 19 is attached with a rubber layer 20. A feeding funnel 11 is welded at the center of the top of the box body 18, and the bottom end of the feeding funnel 11 extends to the inside of the box body 18. Support rods 10 are welded at the centers of the outer surfaces of both sides of the feeding funnel 11 in the vertical direction, and the bottom ends of the support rods 10 are welded to the top of the box body 18. A second motor 14 is fixed near the edge of one side of the top of the box body 18. The second motor 14 adopts the model 5IK120GU-CF / 5GU3K, and a rotating rod 13 is welded to the outer surface of one side of the second motor 14 through a rotating shaft, and one end of the rotating rod 13 extends to the inside of the feeding funnel 11, and the rotating One end of the moving rod 13 is slidably embedded in the inner surface wall of one side of the feeding funnel 11, and four baffle plates 12 are equidistantly welded on the outer surface of the rotating rod 13. By starting the second motor 14, the rotating rod 13 can be better rotated, so that the four baffle plates 12 can be rotated, so that the sand inside the feeding funnel 11 can be better evenly dropped into the inside of the screen frame 22, preventing a large amount of sand from being discharged together, causing a large amount of stacking, making it impossible to better screen the sand. By welding the telescopic rod 36 on the inner surface walls on both sides of the box body 18, when the two screen frames 22 move left and right, the rubber layer 20 is collided with by the two fixed plates 21, so that the elastic soft plate 19 squeezes the telescopic rod 36, so that the telescopic rod 36 is contracted, which drives the compression spring 35 to contract, thereby better eliminating the collision, and at the same time, better reducing the noise of the collision, thereby increasing the service life of the sand screening machine.

[0029] Working principle: When in use, the sand to be screened is added into the feed hopper 11, and the second motor 14 is started to rotate the rotating rod 13, so that the baffle plate 12 on the rotating rod 13 can be rotated better, so that the sand to be screened can be evenly dropped into the screen frame 22, and the first motor 2 is started to drive the round rod 5 to rotate, so that the round rod 5 can drive the annular disk 7 to rotate better, and the second support rod 8 on the top of the annular disk 7 drives the linkage rod 9 to move, and the movement of the linkage rod 9 drives the movement of the first support rod 15, so that the hollow cylinder 17 can be better driven to move left and right on the slide rod 16, thereby driving the two screen frames 22 to move. The two fixed plates 21 move left and right when screening the sand, so that the two fixed plates 21 collide with the rubber layer 20, so that the elastic soft plate 19 squeezes the telescopic rod 36, so that the telescopic rod 36 contracts, and drives the compression spring 35 to contract, so that the collision can be better eliminated. When removing impurities from the screen frame 22 after screening, the L-shaped rod 34 is rotated to separate the L-shaped rod 34 from the screen frame 22, and the hook 23 is rotated to separate the hook 23 from the ring 25. The pull rod 32 is pulled to better remove the screen frame 22, and it can be more convenient to remove impurities inside the screen frame 22.

[0030] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand screening machine for construction machinery, comprising a box (18), characterized in that: The bottom surface of the box body (18) is a hollow structure, and three telescopic rods (36) are welded to the inner surface walls of both sides of the box body (18) at equal distances along the vertical center line, and the outer surfaces of the three telescopic rods (36) are sleeved with compression springs (35), and one end of the three telescopic rods (36) is welded with an elastic soft plate (19), and the outer surface of one side of the elastic soft plate (19) is attached with a rubber layer (20), and the outer surface of one side of the box body (18) is welded with a frame (6), and the inner bottom surface of the frame (6) is welded with a base (1), and the top of the base (1) is fixed with a first A motor (2), a round rod (5) is welded to the top of the first motor (2) via a rotating shaft, a circular ring disk (7) is welded to the top of the round rod (5), a fixing block (4) is welded to the center of the outer surface of one side of the box (18), a through hole (3) is opened in the vertical direction at the top of the fixing block (4) near the edge of one side, and the inner wall of the through hole (3) is slidably embedded with the outer surface of the round rod (5), sliding rods (16) are welded to the inner walls of both sides of the box (18) near the top edge, and the outer surface of the sliding rod (16) is slidably sleeved with a hollow cylinder (17) A first support rod (15) is welded to the top of the hollow cylinder (17) near one end edge, a second support rod (8) is welded to the top of the annular disk (7) near the edge, a linkage rod (9) is slidably penetrated through the outer surface of the first support rod (15) and the outer surface of the second support rod (8), a fixing plate (21) is welded to the bottom of the hollow cylinder (17) near both end edges, two fixing plates (21) are provided, and two slide grooves (28) are provided on the outer surface of one side of the two fixing plates (21) near the upper and lower end edges in the horizontal direction, the slide grooves There are four (28) in total, which are divided into two groups. Three arc grooves (29) are evenly spaced on the inner wall of one side of each group of two slide grooves (28) in the vertical direction, and a plurality of sliding beads (30) are evenly spaced and slidably embedded on the inner wall of the arc groove (29). A feed funnel (11) is welded at the center of the top of the box body (18), and the bottom end of the feed funnel (11) extends to the inside of the box body (18). Support rods (10) are welded at the center of the outer surfaces of both sides of the feed funnel (11) in the vertical direction, and the bottom ends of the support rods (10) are welded to the top of the box body (18).

2. A sand screening machine for construction machinery according to claim 1, characterized in that: A slider (31) is slidably embedded in the inner surface wall of each group of two slide grooves (28), and one side outer surface of the slider (31) is slidably embedded in the outer surface of the slide ball (30). A total of four sliders (31) are provided and divided into two groups. A screen frame (22) is welded to the other side outer surface of each group of two sliders (31), and a pull rod (32) is welded at the center of the front surface of the screen frame (22).

3. A sand screening machine for construction machinery according to claim 1, characterized in that: A square block (38) is welded at the center of the outer surface of one side of the two fixing plates (21), a straight rod (24) is welded at the center of the bottom of the two square blocks (38) and at the bottom of the hollow cylinder (17) close to each fixing plate (21), and a circular ring (25) is welded at the bottom end of the straight rod (24).

4. A sand screening machine for construction machinery as claimed in claim 2, characterized in that: There are two sieve frames (22) in total, and two baffles (26) are welded on the top of the two sieve frames (22) near the edges on both sides, and a rotating rod (27) is slidably embedded between the two baffles (26). A hook (23) is slidably penetrated through the outer surface of the rotating rod (27), and the outer surface of the hook (23) is snap-fitted and connected with the inner surface wall of the ring (25).

5. A sand screening machine for construction machinery as claimed in claim 1, characterized in that: A circular hole (33) is provided on the front surface of the two fixing plates (21) near the upper and lower ends. A strong spring (37) is welded to the inner surface wall of the circular hole (33). An L-shaped rod (34) is welded to one end of the strong spring (37). A total of four L-shaped rods (34) are provided and divided into two groups. The outer surfaces of the two L-shaped rods (34) in each group are attached to the outer surface of each screen frame (22).

6. A sand screening machine for construction machinery as claimed in claim 1 or 5, characterized in that: A second motor (14) is fixed to the top of the box body (18) near one side edge, and a rotating rod (13) is welded to the outer surface of one side of the second motor (14) via a rotating shaft, and one end of the rotating rod (13) extends to the inside of the feed funnel (11), and one end of the rotating rod (13) is slidably embedded in the inner surface wall of one side of the feed funnel (11), and four baffle plates (12) are welded to the outer surface of the rotating rod (13) at equal intervals.

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