Fine sand screening machine

Abstract

The utility model belongs to the technical field of gravel screening, and particularly relates to a fine sand screening machine which comprises a rotating rod, the left end of the rotating rod is connected with the output end of a motor, the right end of the rotating rod is fixedly connected with four vertical rods, the vertical rods are arranged around the rotating rod at intervals of 90 degrees, one end of each vertical rod is fixedly connected with the rotating rod, and the other end of each vertical rod is fixedly connected with the motor. Four transverse rods are fixedly connected to the other ends of the vertical rods, a bottom plate is fixedly connected to the other ends of the transverse rods, the bottom plate is in a cross shape, the direction of the bottom plate corresponds to that of the vertical rods, a filter screen cover is rotationally connected to the rotating rod and located between the motor and the vertical rods, and a feeding opening is formed in the filter screen cover. The filter screen cover is located on the other side of the motor and rotationally connected with an outer gear, an annular filter screen is fixedly connected to the circle of the right side of the outer gear, the other end of the annular filter screen is fixedly connected to the connecting ring, and the cross rod is close to the peripheral annular filter screen. According to the sand screening device, bonded sand can be broken away while screening is conducted, the sand blocked on the filter screen is cleared away, blocking is prevented, and reliability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand and gravel screening, in particular to a fine sand screening machine. Background Art

[0002] Fine sand is often needed in construction and other production activities. Fine sand exists in nature and is mixed with other impurities. When preparing fine sand, the fine sand needs to be screened out.

[0003] A simpler method is to use an inclined metal mesh for manual screening. Since it is a manual operation, the metal mesh area does not need to be too large, so the efficiency is not high, the screening effect is not good, and secondary screening may be required. In addition, the manual method is time-consuming and labor-intensive. Many existing sand screening machines use inclined filter cylinders for filtration. The inclined filter cylinder causes sand and gravel to accumulate at the bottom, reducing the available area of ​​the filter. The sand screening machine is inconvenient to load and unload. The sand and gravel may be hydrated and bonded together, which cannot be filtered out and blocks the filter, affecting the filtration effect.

[0004] Therefore, the utility model provides a fine sand screening machine. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a fine sand screening machine described in the utility model comprises a rotating rod, the left end of the rotating rod is connected to the output end of the motor, the right end of the rotating rod is fixedly connected to a vertical rod, there are four vertical rods and they are arranged around the rotating rod at an interval of ninety degrees, one end of the vertical rod is fixedly connected to the rotating rod, the other end of the vertical rod is fixedly connected to a cross rod, there are four cross rods and the other end of the cross rod is fixedly connected to a bottom plate, the bottom plate is cross-shaped and the direction corresponds to the vertical rod, a filter cover is rotatably connected to the rotating rod, the filter cover is located between the motor and the vertical rod, a feed port is provided on the filter cover, the filter cover is located on the other side of the motor and is rotatably connected to an external gear, a circle on the right side of the external gear is fixedly connected to an annular filter, the other end of the annular filter is fixedly connected to the connecting ring, and the cross rod is close to the outer annular filter.

[0007] Preferably, an internal gear is fixedly connected to the rotating rod, and the internal gear is rotatably connected to the right side of the filter cover. The right side of the filter cover is also rotatably connected to a transmission gear. There are two transmission gears and they are respectively located at the upper and lower sides of the inner side of the filter cover. The transmission gear is meshed with the external gear and the internal gear.

[0008] Preferably, a fixing piece is provided at the upper and lower parts of the motor, and the two ends of the fixing piece are respectively fixedly connected to the motor and the filter cover. The left and right sides of the motor are rotatably connected with connecting rods, and the other end of the connecting rod away from the motor is rotatably connected to the loading rack.

[0009] Preferably, a loading funnel is fixedly connected to the loading rack, a feeding pipe is fixedly connected to the through hole below the loading funnel, one end of the feeding pipe away from the loading funnel is connected to the loading port on the filter cover, and a transmission structure is arranged on the left side of the loading funnel.

[0010] Preferably, the transmission structure includes a conveyor belt, conveyor wheels and a conveyor frame. The conveyor frame is of a triangular structure. A conveyor wheel is arranged at the lower left and upper right of the conveyor frame. The two conveyor wheels are connected by a conveyor belt. The conveyor wheel located at the upper right extends into the space above the loading funnel. The width of the conveyor belt is smaller than the width of the loading funnel in the direction of the conveyor belt.

[0011] Preferably, the conveyor belt is provided with grooves, the depth of the grooves is less than the thickness of the conveyor belt, and the grooves are distributed at intervals in all directions on the conveyor belt.

[0012] Preferably, a buckle is rotatably connected to the connecting ring, and the buckle is divided into a horizontal part and a vertical part. The horizontal part is rotatably connected to the connecting ring, and the vertical part is fixedly connected to the horizontal part or the vertical part and the horizontal part are designed as one body. A circle of indentations is set on the inner circle of the connecting ring, and the indentations are adapted to the bottom cover.

[0013] Preferably, the outer periphery of the annular filter is a filter frame, which is composed of solid materials. The filter frame surrounds and supports the filter structure. A lifting rod is provided on the filter frame, and the lifting rod is divided into an upper support cap and a lower threaded rod. The lower threaded rod is threadedly connected to the lower filter frame. The diameter of the upper support cap is larger than that of the threaded rod, and the support cap is located below the connecting ring.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The fine sand screening machine described in the utility model filters the sand and gravel put in through the annular filter screen. The annular filter screen is placed horizontally, and the sand and gravel are dispersed in it, making full use of the filter screen space. The cross bar in the annular filter screen can be rotated to break up the sand and gravel attached to the water. The cross bar can also scrape off the fine sand blocking the gap in the annular filter screen, clean the annular filter screen, and the screened fine sand falls directly below the equipment through the annular filter screen.

[0016] 2. The fine sand screening machine described in the utility model drives the rotating rod to rotate through the motor, and the rotating rod drives the internal gear fixedly connected to it to rotate, and the internal gear drives the transmission gear meshing with it to rotate, and the transmission gear rotates on the filter cover, driving the outer gear meshing with it on the periphery to rotate, and the outer gear drives the annular filter fixed on the right side to rotate; because the linear speeds of the internal gear and the external gear are the same, and the diameter of the internal gear is smaller than that of the external gear, the angular velocity of the internal gear is faster than that of the external gear. The rotating rod drives the vertical rod to rotate, the vertical rod drives the horizontal rod to rotate, and the horizontal rod drives the bottom plate to rotate. Therefore, the angular velocity of the horizontal rod is faster than that of the annular filter, which makes it convenient for the horizontal rod to break up the sand and gravel that are stuck together and clean the annular filter.

[0017] 3. The fine sand screening machine described in the utility model transports sand and gravel from a lower place to the feeding hopper on the upper part of the fine sand screening machine through a transmission device to achieve uniform feeding. The conveyor belt in the transmission device is provided with grooves that are full of conveyor belts. The grooves can help the conveyor belt increase friction, so that the transported sand and gravel are not easy to slide.

[0018] 4. The fine sand screening machine described in the utility model can control the up and down movement of the lifting rod threadedly connected to the filter frame by rotating the lifting rod, thereby controlling the lifting and lowering of the connecting ring on the lifting rod, thereby controlling the tilting of the annular filter. After tilting, rotate the buckle to open the bottom cover, and cooperate with the rotation of the cross bar to allow the large sand and gravel that have not been filtered to pour out; the fine sand screening machine may increase the size of the equipment to meet larger production needs. At this time, it is too time-consuming and labor-intensive to manually remove the unfiltered sand and gravel. This method can facilitate the removal of waste materials from the equipment and the screening of new materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a front view of the utility model;

[0021] Figure 2 It is a top view of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the annular filter of the utility model;

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

[0024] Figure 5 It is a three-dimensional diagram of the utility model;

[0025] Figure 6 It is a rear view of the utility model;

[0026] In the figure: 1. conveyor belt; 2. groove; 3. conveyor wheel; 4. feeding funnel; 5. conveyor rack; 6. feeding rack; 7. motor; 8. fixing piece; 9. connecting rod; 10. feeding pipe; 11. filter cover; 12. outer gear; 13. inner gear; 14. rotating rod; 15. vertical rod; 16. horizontal rod; 17. bottom plate; 18. transmission gear; 19. connecting ring; 20. filter rack; 21. lifting rod; 22. ring filter; 23. buckle; 24. bottom cover. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figures 1 to 4 As shown, a fine sand screening machine described in an embodiment of the utility model comprises a rotating rod 14, the left end of the rotating rod 14 is connected to the output end of the motor 7, and the right end of the rotating rod 14 is fixedly connected to a vertical rod 15, there are four vertical rods 15 and they are arranged around the rotating rod 14 at an interval of ninety degrees. One end of the vertical rod 15 is fixedly connected to the rotating rod 14, and the other end of the vertical rod 15 is fixedly connected to a cross rod 16, there are four cross rods 16 and the other end of the cross rod 16 is fixedly connected to a bottom plate 17, the bottom plate 17 is cross-shaped and the direction corresponds to the vertical rod 15, the rotating rod 14 is rotatably connected to a filter cover 11, the filter cover 11 is located between the motor 7 and the vertical rod 15, a feed port is provided on the filter cover 11, the filter cover 11 is located on the other side of the motor 7 and is rotatably connected to an external gear 12, the right side of the external gear 12 is fixedly connected to an annular filter screen 22, the other end of the annular filter screen 22 is fixedly connected to a connecting ring 19, and the cross rod 16 is close to the outer annular filter screen 22.

[0029] Specifically, the sand and gravel are filtered through the annular filter 22, which is placed horizontally, and the sand and gravel are dispersed therein, making full use of the internal space. The crossbar 16 in the annular filter 22 can be rotated to break up the sand and gravel that are attached to the water and bonded together. The crossbar 16 can also scrape off the fine sand that is blocked in the gap of the annular filter 22, clean the annular filter 22, and the screened fine sand passes through the annular filter 22 and falls directly below the device.

[0030] like Figure 3 As shown, the rotating rod 14 is fixedly connected with an internal gear 13, and the internal gear 13 is rotatably connected to the right side of the filter cover 11. The right side of the filter cover 11 is also rotatably connected with a transmission gear 18. There are two transmission gears 18 and they are respectively located at the upper and lower sides of the inner side of the filter cover 11. The transmission gear 18 is meshed with the external gear 12 and the internal gear 13.

[0031] Specifically, the motor 7 drives the rotating rod 14 to rotate, the rotating rod 14 drives the internal gear 13 fixedly connected thereto to rotate, the internal gear 13 drives the transmission gear 18 meshing therewith to rotate, the transmission gear 18 rotates on the filter cover 11, drives the external gear 12 meshing therewith on the periphery to rotate, and the external gear 12 drives the annular filter 22 fixed to the right side thereof to rotate; since the internal gear 13 and the external gear 12 rotate at the same linear speed, and the diameter of the internal gear 13 is smaller than that of the external gear 12, the angular velocity of the internal gear 13 is greater than that of the external gear 12. The rotating rod 14 drives the vertical rod 15 to rotate, the vertical rod 15 drives the horizontal rod 16 to rotate, and the horizontal rod 16 drives the bottom plate 17 to rotate. Therefore, the angular velocity of the horizontal rod 16 is greater than that of the annular filter 22, which facilitates the horizontal rod 16 to break up the sand and gravel that are bonded together and clean the annular filter 22.

[0032] like Figure 4 As shown, a fixing member 8 is provided at the upper and lower parts of the motor 7, and the two ends of the fixing member 8 are respectively fixedly connected to the motor 7 and the filter cover 11. The left and right sides of the motor 7 are rotatably connected to connecting rods 9, and the other end of the connecting rod 9 away from the motor 7 is rotatably connected to the loading rack 6.

[0033] Specifically, by rotating the connecting rod 9, the motor 7 can be rotated to a certain angle. The motor 7 is fixedly connected to the filter cover 11 through the fixing member 8, which can fix the filter cover 11 and prevent the filter cover 11 from rotating with the internal gear 13, the transmission gear 18 and the external gear 12 that are rotatably connected thereto.

[0034] like Figures 4 to 5 As shown, a loading funnel 4 is fixedly connected to the loading rack 6, a feeding pipe 10 is fixedly connected to the through hole below the loading funnel 4, one end of the feeding pipe 10 away from the loading funnel 4 is connected to the loading port on the filter cover 11, and a transmission structure is arranged on the left side of the loading funnel 4.

[0035] Specifically, the sand and gravel raw materials are stored in the feeding funnel 4 through the transmission structure, and then the raw materials are sent to the annular filter screen 22 through the feeding funnel 4 and the feeding pipe 10.

[0036] like Figure 5 As shown, the transmission structure includes a conveyor belt 1, a conveyor wheel 3 and a conveyor frame 5. The conveyor frame 5 is a triangular structure. A conveyor wheel 3 is arranged at the lower left and upper right of the conveyor frame 5. The two conveyor wheels 3 are connected by a conveyor belt 1. The conveyor wheel 3 located at the upper right extends into the space above the loading funnel 4. The width of the conveyor belt 1 is smaller than the width of the loading funnel 4 in the direction of the conveyor belt 1.

[0037] Specifically, the sand and gravel raw materials located at a low position can be sent to the feeding funnel 4 through the transmission structure. The width of the conveyor belt 1 in the transmission structure is smaller than the width of the feeding funnel 4 in the direction of the conveyor belt 1, so as to prevent the sand and gravel from falling off the edge of the conveyor belt 1.

[0038] like Figure 5 As shown, the conveyor belt 1 is provided with grooves 2, the depth of the grooves 2 is less than the thickness of the conveyor belt 1, and the grooves 2 are spaced apart in all directions on the conveyor belt 1. The grooves 2 can help the conveyor belt 1 increase friction, so that the transported sand and gravel are not easy to slide down.

[0039] like Figure 6 As shown, a buckle 23 is rotatably connected to the connecting ring 19, and the buckle 23 is divided into a horizontal part and a vertical part. The horizontal part is rotatably connected to the connecting ring 19, and the vertical part is fixedly connected to the horizontal part or the vertical part and the horizontal part are designed as one body. A circle of indentations is set on the inner circle of the connecting ring 19, and the indentations are adapted to the bottom cover 24. The bottom cover 24 can be freely opened and closed by rotating the buckle 23.

[0040] like Figure 6 As shown, the outer periphery of the annular filter 22 is a filter frame 20, which is made of solid material. The filter frame 20 surrounds and supports the filter structure, and a lifting rod 21 is provided on the filter frame 20. The lifting rod 21 is divided into an upper supporting cap and a lower threaded rod. The lower threaded rod is threadedly connected to the lower filter frame 20. The diameter of the upper supporting cap is larger than that of the threaded rod, and the supporting cap is located below the connecting ring 19.

[0041] Specifically, the lifting rod 21 can be controlled to move up and down by rotating the lifting rod 21 threadedly connected to the filter frame 20, thereby controlling the lifting and lowering of the connecting ring 19 on the lifting rod 21, thereby controlling the tilting of the annular filter 22. After tilting, the buckle 23 is rotated to open the bottom cover 24, and the large sand and gravel that have not been filtered out are dumped out in coordination with the rotation of the cross bar 16. The fine sand screening machine may increase the size of the equipment to meet greater production needs. At this time, it is too time-consuming and laborious to manually remove the unfiltered sand and gravel. This method can facilitate the removal of waste materials from the equipment for screening of new materials.

[0042] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fine sand screening machine, characterized in that: The invention comprises a rotating rod (14), wherein the left end of the rotating rod (14) is connected to the output end of the motor (7), the right end of the rotating rod (14) is fixedly connected to a vertical rod (15), there are four vertical rods (15) arranged around the rotating rod (14) at intervals of 90 degrees, one end of the vertical rod (15) is fixedly connected to the rotating rod (14), the other end of the vertical rod (15) is fixedly connected to a cross rod (16), there are four cross rods (16) and the other end of the cross rod (16) is fixedly connected to a bottom plate (17), the bottom plate (17) is cross-shaped and has a direction parallel to the vertical rod (15). ), the rotating rod (14) is rotatably connected to a filter cover (11), the filter cover (11) is located between the motor (7) and the vertical rod (15), a feed port is provided on the filter cover (11), the filter cover (11) is located on the other side of the motor (7) and is rotatably connected to an external gear (12), a right side circle of the external gear (12) is fixedly connected to an annular filter (22), the other end of the annular filter (22) is fixedly connected to a connecting ring (19), and the cross bar (16) is close to the outer annular filter (22).

2. A fine sand screening machine according to claim 1, characterized in that: The rotating rod (14) is fixedly connected with an internal gear (13), and the internal gear (13) is rotatably connected to the right side of the filter cover (11). The right side of the filter cover (11) is also rotatably connected with a transmission gear (18). There are two transmission gears (18) and they are respectively located at the upper and lower sides of the inner side of the filter cover (11). The transmission gear (18) is meshed with the external gear (12) and the internal gear (13).

3. A fine sand screening machine according to claim 1, characterized in that: A fixing member (8) is provided above and below the motor (7), and two ends of the fixing member (8) are respectively fixedly connected to the motor (7) and the filter cover (11). The left and right sides of the motor (7) are rotatably connected to connecting rods (9), and the other end of the connecting rod (9) away from the motor (7) is rotatably connected to the loading rack (6).

4. A fine sand screening machine according to claim 3, characterized in that: The loading frame (6) is fixedly connected to a loading funnel (4), a feeding pipe (10) is fixedly connected to a through hole below the loading funnel (4), an end of the feeding pipe (10) away from the loading funnel (4) is connected to a loading port on a filter cover (11), and a transmission structure is arranged on the left side of the loading funnel (4).

5. A fine sand screening machine according to claim 4, characterized in that: The transmission structure comprises a conveyor belt (1), a conveyor wheel (3) and a conveyor frame (5); the conveyor frame (5) is of a triangular structure; a conveyor wheel (3) is arranged at the lower left and upper right of the conveyor frame (5); the two conveyor wheels (3) are connected by a conveyor belt (1); the conveyor wheel (3) located at the upper right extends into the space above the loading hopper (4); the width of the conveyor belt (1) is smaller than the width of the loading hopper (4) in the direction of the conveyor belt (1).

6. A fine sand screening machine according to claim 5, characterized in that: The conveyor belt (1) is provided with grooves (2), the depth of the grooves (2) is less than the thickness of the conveyor belt (1), and the grooves (2) are distributed at intervals in all directions on the conveyor belt (1).

7. The fine sand screening machine according to claim 1, characterized in that: A buckle (23) is rotatably connected to the connecting ring (19), and the buckle (23) is divided into a horizontal part and a vertical part. The horizontal part is rotatably connected to the connecting ring (19), and the vertical part is fixedly connected to the horizontal part, or the vertical part and the horizontal part are designed as one body. A circle of indentations is arranged on the inner circle of the connecting ring (19), and the indentations are matched with the bottom cover (24).

8. The fine sand screening machine according to claim 1, characterized in that: The outer periphery of the annular filter screen (22) is a filter screen frame (20), which is made of solid materials. The filter screen frame (20) surrounds and supports the filter screen structure. A lifting rod (21) is arranged on the filter screen frame (20), and the lifting rod (21) is divided into an upper support cap and a lower threaded rod. The lower threaded rod is threadedly connected to the lower filter screen frame (20). The diameter of the upper support cap is larger than that of the threaded rod. The support cap is located below the connecting ring (19).

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