Sand screening device

By introducing wear-resistant rubber rollers and a motor-driven transmission chain system into the drum sand screening machine, the problem of stones stuck in the screen holes was solved, the sand screening machine could achieve self-stone discharge and automatic cleaning, and the operating efficiency of the equipment was improved.

CN223312417UActive Publication Date: 2025-09-09LIANYUNGANG GANYU DADI CONSTRUCTION ENGINEERING SUPERVISION CO LTD
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Patent Information

Application Number
CN202422520828.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-09-09
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

During the screening process of the existing drum sand screening machine, the screen holes are easily stuck by sand and gravel that are slightly larger than the aperture, resulting in a decrease in sand screening efficiency. The machine needs to be stopped for manual cleaning, which affects the operating efficiency of the equipment.

Method used

A sand screening device is designed, which includes a support frame, a sand screening net, an adjustment mechanism and a cleaning mechanism. A wear-resistant rubber roller is used to contact the sand screening net. The stuck sand and gravel are squeezed and cleaned by the rotation of the rubber roller. Automatic cleaning is achieved by combining with a motor-driven transmission chain system.

Benefits of technology

The automatic stone discharge function of the sand screening machine drum is realized, which reduces the frequency of manual cleaning and improves the equipment's automatic operation efficiency and sand screening efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sand screening device, and relates to the technical field of sand screening. The sand screening device comprises a supporting frame, a sand screening net is arranged in the supporting frame, an adjusting mechanism is arranged on one side of the supporting frame, and a cleaning mechanism is arranged on one side of the supporting frame. According to the sand screening device, by arranging a wear-resistant rubber roller, when sand clamped on a sand screening net needs to be cleaned, a fixing frame is firstly installed on one side of a supporting frame through a fixing bolt, and one side of the fixing frame is rotationally connected with the wear-resistant rubber roller through a connecting rod; and the wear-resistant rubber roller makes contact with the outer side of the sand screening net through springs on protruding blocks arranged on the two sides of a connecting rod, when the sand screening net rotates, the wear-resistant rubber roller also rotates along with the sand screening net, sand and stones clamped on the sand screening net are squeezed to fall off, and the sand screening net cleaning device facilitates cleaning of the sand and stones clamped on the sand screening net.
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Description

Technical Field

[0001] The utility model belongs to the technical field of sand screening, and particularly relates to a sand screening device. Background Art

[0002] A drum sand screen is a highly efficient sand and gravel separation device widely used in construction, mining, sand pits, and other fields. It primarily consists of a drum, frame, transmission, inlet and outlet ports, and other components. The drum is typically made of wear-resistant steel and has numerous small holes on its surface, which are used to screen sand and gravel of varying particle sizes.

[0003] The above device does not have the structure of the sand screening machine drum to discharge stones automatically when in use, so when the existing drum sand screening machine is in use, due to the uneven size of sand and stone and the relatively rough surface, when encountering sand and stone that is slightly larger than the aperture of the screen drum, such sand and stone are easily stuck in the screen holes of the screen drum and cannot be discharged by themselves. After long-term use, the machine needs to be stopped for manual cleaning to restore the sand screening efficiency. Based on the shortcomings of the existing technology, the utility model designs a sand screening device. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a sand screening device having the characteristic of self-stone discharge of the sand screening drum.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sand screening device, comprising a support frame, a sand screening net is provided inside the support frame, an adjustment mechanism is provided on one side of the support frame, and a cleaning mechanism is provided on one side of the support frame;

[0006] The cleaning mechanism includes a fixing frame, a fixing bolt, a slide groove, a wear-resistant rubber roller, a connecting rod, a protrusion, a sliding hole and a spring. The fixing frame is arranged on one side of the supporting frame, a fixing bolt is arranged on one side of the fixing frame, a slide groove is opened on one side of the fixing frame, a wear-resistant rubber roller is rotatably connected to one side of the fixing frame, a connecting rod is arranged inside the wear-resistant rubber roller, a protrusion is fixedly connected to one side of the connecting rod, a sliding hole is opened on one side of the protrusion, and a spring is movably clamped on one side of the protrusion.

[0007] As a preferred technical solution of a sand screening device of the present invention, the adjusting mechanism includes a motor, gear 1, a transmission chain, gear 2, a connecting shaft and a swivel. The motor is arranged on one side of the support frame, and gear 1 is provided on one side of the motor. The outer surface of the gear 1 is engaged with the transmission chain, and the inside of the transmission chain is engaged with gear 2. One side of the gear 2 is fixedly connected to the connecting shaft, and one side of the connecting shaft is provided with a swivel.

[0008] As a preferred technical solution of the sand screening device of the present invention, a sand inlet hopper is provided on one side of the support frame, a discharge hopper is provided on one side of the support frame, and a mounting hole is opened on one side of the support frame.

[0009] As a preferred technical solution of the sand screening device of the present invention, a mounting ring is provided inside the sand screening net, a mounting bolt is provided on one side of the mounting ring, and a connecting frame is fixedly connected to the inside of the mounting ring.

[0010] As a preferred technical solution of the sand screening device of the present invention, the fixing bolt is threadedly connected to the inside of the mounting hole, and the wear-resistant rubber roller is rotatably connected to one side of the sand screening net.

[0011] As a preferred technical solution of the sand screening device of the present invention, the connecting rod is arranged on one side of the fixing frame, and the protrusion is slidably connected to the inside of the sliding groove.

[0012] As a preferred technical solution of the sand screening device of the present invention, the protrusion is arranged on one side of the wear-resistant rubber roller, and the spring is movably engaged with the inside of the slide groove.

[0013] As a preferred technical solution of the sand screening device of the present invention, the connecting shaft is fixedly connected to one side of the connecting frame, and the swivel is rotatably connected to the top of the supporting frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. When the utility model is in use, by setting a wear-resistant rubber roller, when it is necessary to clean the sand and stones stuck on the sand screening net, first the fixing frame is installed on one side of the support frame by the fixing bolt, and the wear-resistant rubber roller is rotatably connected to one side of the fixing frame through a connecting rod. The wear-resistant rubber roller is brought into contact with the outer side of the sand screening net by the springs on the protrusions arranged on both sides of the connecting rod, and when the sand screening net rotates, the wear-resistant rubber roller also rotates therewith, and squeezes the sand and stones stuck on the sand screening net to make them fall off, so that the device is convenient for cleaning the sand and stones stuck on the sand screening net. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the support frame structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the sand screening net structure of the present utility model;

[0019] Figure 3This is a schematic diagram of the connecting frame structure of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the cleaning mechanism of the present utility model.

[0022] In the figure: 1. Support frame; 101. Sand inlet hopper; 102. Discharge hopper; 103. Mounting hole; 2. Sand screening net; 201. Mounting ring; 202. Mounting bolt; 203. Connecting frame; 3. Adjusting mechanism; 301. Motor; 302. Gear 1; 303. Transmission chain; 304. Gear 2; 305. Connecting shaft; 306. Swivel; 4. Cleaning mechanism; 401. Fixing frame; 402. Fixing bolt; 403. Slide groove; 404. Wear-resistant rubber roller; 405. Connecting rod; 406. Bump; 407. Slide hole; 408. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 , the utility model provides the following technical solutions: a sand screening device, comprising a support frame 1, a sand screening net 2 is provided inside the support frame 1, an adjustment mechanism 3 is provided on one side of the support frame 1, and a cleaning mechanism 4 is provided on one side of the support frame 1;

[0025] The adjusting mechanism 3 includes a motor 301, gear 1 302, a transmission chain 303, gear 2 304, a connecting shaft 305 and a swivel 306. The motor 301 is arranged on one side of the support frame 1. Gear 1 302 is provided on one side of the motor 301. The outer surface of gear 1 302 is meshed with the transmission chain 303. The inside of the transmission chain 303 is meshed with the gear 2 304. One side of the gear 2 304 is fixedly connected to the connecting shaft 305, and a swivel 306 is provided on one side of the connecting shaft 305.

[0026] A sand inlet hopper 101 is provided on one side of the support frame 1 , a material discharge hopper 102 is provided on one side of the support frame 1 , and a mounting hole 103 is opened on one side of the support frame 1 .

[0027] A mounting ring 201 is provided inside the sand screening net 2 , a mounting bolt 202 is provided on one side of the mounting ring 201 , and a connecting frame 203 is fixedly connected inside the mounting ring 201 .

[0028] The connecting shaft 305 is fixedly connected to one side of the connecting frame 203 , and the swivel 306 is rotatably connected to the top of the supporting frame 1 .

[0029] What needs to be further explained is: the sand and gravel to be screened are poured into the interior of the sand screening net 2 from the sand inlet hopper 101, and the transmission chain 303 is driven by the gear 1 302 fixed on the output shaft of the motor 301, and the transmission chain 303 drives the gear 2 304 to rotate. At this time, the gear 2 304 drives the connecting shaft 305, the connecting frame 203 and the sand screening net 2 to rotate, so that the sand and gravel inside the sand screening net 2 are screened, and the fine sand falls to the ground through the gaps in the sand screening net 2, and the larger sand and gravel fall from the discharge hopper 102 on one side of the sand screening net 2. A cleaning mechanism 4 is provided on the outer surface of the sand screening net 2. The provision of the cleaning mechanism 4 facilitates the cleaning of the sand and gravel stuck on the sand screening net 2.

[0030] See also Figure 5 , the utility model provides the following technical solutions:

[0031] Cleaning mechanism 4, the cleaning mechanism 4 includes a fixing frame 401, a fixing bolt 402, a slide 403, a wear-resistant rubber roller 404, a connecting rod 405, a protrusion 406, a sliding hole 407 and a spring 408. The fixing frame 401 is arranged on one side of the support frame 1, and a fixing bolt 402 is provided on one side of the fixing frame 401. A slide 403 is provided on one side of the fixing frame 401. A wear-resistant rubber roller 404 is rotatably connected to one side of the fixing frame 401. A connecting rod 405 is provided inside the wear-resistant rubber roller 404. A protrusion 406 is fixedly connected to one side of the connecting rod 405. A sliding hole 407 is provided on one side of the protrusion 406. A spring 408 is movably clamped on one side of the protrusion 406.

[0032] The fixing bolt 402 is threadedly connected to the inside of the mounting hole 103 , and the wear-resistant rubber roller 404 is rotatably connected to one side of the sand screening net 2 .

[0033] The connecting rod 405 is provided on one side of the fixing frame 401 , and the protrusion 406 is slidably connected to the inside of the sliding groove 403 .

[0034] The protrusion 406 is provided on one side of the wear-resistant rubber roller 404 , and the spring 408 is movably engaged with the interior of the sliding groove 403 .

[0035] What needs to be further explained is that: the fixing frame 401 is installed on one side of the support frame 1 through the fixing bolt 402, and a wear-resistant rubber roller 404 is rotatably connected to one side of the fixing frame 401 through the connecting rod 405, and the spring 408 on the protrusion 406 set on both sides of the connecting rod 405 makes the wear-resistant rubber roller 404 contact with the outer side of the sand screening net 2, and when the sand screening net 2 rotates, the wear-resistant rubber roller 404 also rotates, and squeezes the sand and stones stuck on the sand screening net 2 to make them fall off.

[0036] Working principle: When a sand screening device is used, the sand and gravel to be screened are first poured into the interior of the sand screening net 2 from the sand inlet hopper 101, and the transmission chain 303 is driven by the gear 1 302 fixed on the output shaft of the motor 301, and the transmission chain 303 drives the gear 2 304 to rotate. At this time, the gear 2 304 drives the connecting shaft 305, the connecting frame 203 and the sand screening net 2 to rotate, so that the sand and gravel inside the sand screening net 2 are screened, and the fine sand falls to the ground through the gap of the sand screening net 2, and the larger sand and gravel fall from the discharge hopper 102 on one side of the sand screening net 2. A cleaning mechanism 4 is provided on the outer surface of the sand screening net 2. The provision of the cleaning mechanism 4 facilitates the cleaning of the sand and gravel stuck on the sand screening net 2.

[0037] When it is necessary to clean the sand and stones stuck on the sand screening net 2, first install the fixing frame 401 on one side of the support frame 1 through the fixing bolt 402, and a wear-resistant rubber roller 404 is rotatably connected to one side of the fixing frame 401 through the connecting rod 405. The spring 408 on the protrusion 406 set on both sides of the connecting rod 405 makes the wear-resistant rubber roller 404 contact with the outer side of the sand screening net 2, and when the sand screening net 2 rotates, the wear-resistant rubber roller 404 also rotates, and squeezes the sand and stones stuck on the sand screening net 2 to make them fall off. This device facilitates cleaning the sand and stones stuck on the sand screening net 2.

[0038] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sand screening device, comprising a support frame (1), characterized in that: A sand screening net (2) is provided inside the support frame (1), an adjustment mechanism (3) is provided on one side of the support frame (1), and a cleaning mechanism (4) is provided on one side of the support frame (1); A cleaning mechanism (4), the cleaning mechanism (4) comprising a fixing frame (401), a fixing bolt (402), a slide groove (403), a wear-resistant rubber roller (404), a connecting rod (405), a bump (406), a slide hole (407) and a spring (408), wherein the fixing frame (401) is arranged on one side of the support frame (1), a fixing bolt (402) is arranged on one side of the fixing frame (401), a slide groove (403) is provided on one side of the fixing frame (401), a wear-resistant rubber roller (404) is rotatably connected to one side of the fixing frame (401), a connecting rod (405) is provided inside the wear-resistant rubber roller (404), a bump (406) is fixedly connected to one side of the connecting rod (405), a slide hole (407) is provided on one side of the bump (406), and a spring (408) is movably connected to one side of the bump (406).

2. A sand screening device according to claim 1, characterized in that: The regulating mechanism (3) comprises a motor (301), a gear 1 (302), a transmission chain (303), a gear 2 (304), a connecting shaft (305) and a rotating ring (306), wherein the motor (301) is arranged on one side of the support frame (1), the gear 1 (302) is arranged on one side of the motor (301), the outer surface of the gear 1 (302) is meshed with the transmission chain (303), the interior of the transmission chain (303) is meshed with the gear 2 (304), one side of the gear 2 (304) is fixedly connected to the connecting shaft (305), and the rotating ring (306) is arranged on one side of the connecting shaft (305).

3. A sand screening device according to claim 1, characterized in that: A sand inlet hopper (101) is provided on one side of the support frame (1), a material discharge hopper (102) is provided on one side of the support frame (1), and a mounting hole (103) is provided on one side of the support frame (1).

4. A sand screening device according to claim 1, characterized in that: A mounting ring (201) is provided inside the sand screening net (2), a mounting bolt (202) is provided on one side of the mounting ring (201), and a connecting frame (203) is fixedly connected inside the mounting ring (201).

5. The sand screening device according to claim 1, characterized in that: The fixing bolt (402) is threadedly connected to the inside of the mounting hole (103), and the wear-resistant rubber roller (404) is rotatably connected to one side of the sand screening net (2).

6. The sand screening device according to claim 1, characterized in that: The connecting rod (405) is arranged on one side of the fixing frame (401), and the protrusion (406) is slidably connected to the inside of the sliding groove (403).

7. The sand screening device according to claim 1, characterized in that: The protrusion (406) is arranged on one side of the wear-resistant rubber roller (404), and the spring (408) is movably engaged with the interior of the sliding groove (403).

8. The sand screening device according to claim 2, characterized in that: The connecting shaft (305) is fixedly connected to one side of the connecting frame (203), and the rotating ring (306) is rotatably connected to the top of the supporting frame (1).