Rotary drum sand screening machine

Abstract

The utility model provides a drum sand screening machine, which relates to the technical field of drum sand screening machines and comprises a base support, a vibration component is fixedly mounted on the base support, a drum screen is arranged above the vibration component, and a driving mechanism matched with the vibration component and the drum screen for use is mounted on the vibration component. A sieve plate is arranged in the middle of an inner cavity of the vibration assembly. The sieve plate is slidably fed into the sieve plate groove, the sieve plate limiting assembly integrally slides to the middle of the sieve plate groove, the sieve plate is limited, sand is secondarily sieved through the sieve plate, and on the contrary, the sieve plate can be taken out or the sieve plate with smaller sieve holes can be replaced only by integrally sliding the sieve plate limiting assembly into one end of the T-shaped groove. The replacement is convenient and fast, so that the adaptability of the drum sand screening machine is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of drum sand screening machines, and more specifically, particularly relates to a drum sand screening machine. Background Art

[0002] The drum sand screening machine is a mechanical device specially used for screening sand. It is mainly composed of a drum device, a frame, a motor, a reducer, a conveyor belt, etc. Its working principle is that the motor drives the drum to rotate. After the sand enters the drum, the sand is separated from the large particles of aggregate in it under the action of the rotation and tilt angle of the drum.

[0003] Although most of the existing drum sand screening machines can separate sand from the large particles of aggregate therein, since the mesh aperture of the drum screen is fixed and not easy to replace, there are still some larger particles of aggregate in the sand. These aggregates are mostly pebbles. In the concrete production process, if there are too many pebbles in the sand, it will affect the compressive and flexural strength of the concrete in the later stage. Therefore, it is necessary to invest in a drum sand screening machine that can screen out larger particles of aggregate in the sand, which invisibly increases the investment in equipment costs and wastes a lot of resources.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a drum sand screening machine is provided in order to achieve the purpose of having more practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a drum sand screening machine to solve the above problems.

[0006] The purpose and effect of the drum sand screening machine of the utility model are achieved by the following specific technical means:

[0007] A drum sand screening machine includes a base bracket, a vibration component is fixedly installed on the base bracket, a drum screen is arranged above the vibration component, a driving mechanism for cooperating with the vibration component and the drum screen is installed on the vibration component, and a screen plate is arranged in the middle of the inner cavity of the vibration component.

[0008] Furthermore, the vibration assembly includes a vibration bin fixedly mounted on the top surface of the base bracket, a shaft rod is rotatably mounted in the middle of the vibration bin, multiple toothed discs are fixedly mounted on both ends of the shaft rod, two C-shaped slot plates are symmetrically slidably provided in the inner cavity of the vibration bin, a soil retaining plate is fixedly mounted on the front lower end of the C-shaped slot plate, the soil retaining plate is inclined, the C-shaped slot plate is located directly below the multiple toothed disc on the same side, and several groups of sliding rods are fixedly mounted on the bottom surface of the C-shaped slot plate, the lower end of the sliding rod passes through the bottom surface of the vibration bin, and a spring is sleeved on the outer wall surface of the sliding rod.

[0009] Furthermore, the driving mechanism includes a motor fixedly mounted on the middle of the top surface of the left end of the vibration bin, the vibration bin is fixedly mounted with a connecting seat just in front of the rotating end of the motor, a driving wheel used in conjunction with the drum screen is rotatably mounted on the middle of the upper end of the connecting seat, one end of the shaft is rotatably set on the middle of the lower end of the connecting seat, the rotating end of the motor is fixedly connected to the middle of one side of the driving wheel, and two sets of auxiliary wheels used in conjunction with the drum screen are rotatably mounted on the top surface of the vibration bin.

[0010] Furthermore, the vibration assembly also includes a driving sprocket fixedly mounted on the rotating end of the motor and a driven sprocket mounted on one end of the shaft, the driven sprocket is located directly below the driving sprocket, and a chain is installed between the driven sprocket and the driving sprocket.

[0011] Furthermore, a sieve plate groove whose size matches the C-shaped slot plate is opened in the middle of the front wall of the vibration bin, and a sieve plate is slidably installed in the sieve plate groove, and the width of the sieve plate matches the C-shaped slot plate.

[0012] Furthermore, a sieve plate limiting assembly matching the sieve plate is slidably mounted on the middle portion of the front side wall of the vibration bin.

[0013] Furthermore, the screen plate limiting assembly includes a C-shaped block, a round head bolt is threadedly installed in the middle of the C-shaped block, and T-shaped sliders are fixedly installed at the upper and lower ends of the C-shaped block. The T-shaped slider is slidably set in a T-shaped slot opened on the front wall of the vibration bin, and the opening length of the T-shaped slot is greater than the opening length of the screen plate slot.

[0014] Furthermore, a dust cover is installed in the middle of the top surface of the vibration bin, and the dust cover is arranged on the outside of the drum screen.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The utility model slides the sieve plate into the sieve plate slot, further slides the sieve plate limiting assembly as a whole to the middle of the sieve plate slot, limits the sieve plate, and uses the sieve plate to perform secondary screening of the sand. Conversely, only the sieve plate limiting assembly needs to be slid as a whole into one end of the T-shaped slot to remove the sieve plate or replace it with a sieve plate with a smaller sieve hole. The replacement is convenient and quick, making the drum sand screening machine more adaptable.

[0017] 2. The utility model drives the drum screen to screen through the driving mechanism, and drives the screen plate on the vibration component to perform secondary screening on the sand screened by the drum screen. There is no need to invest in a new drum sand screening machine that can screen out larger particles of aggregate in the sand, thereby saving investment in equipment and other resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present utility model.

[0019] Figure 2 It is a schematic diagram of the present utility model.

[0020] Figure 3 It is a schematic diagram of the present utility model.

[0021] Figure 4 It is a schematic diagram of the present utility model.

[0022] Figure 5 It is a schematic diagram of the present utility model.

[0023] Figure 6 It is a schematic diagram of the present utility model.

[0024] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0025] 1. Base bracket;

[0026] 2. Vibration assembly; 201. Vibration chamber; 202. Shaft; 203. Multi-toothed disc; 204. Driven sprocket; 205. Driving sprocket; 206. Chain; 207. C-shaped slot plate; 208. Sliding rod; 209. Spring; 210. Earth retaining plate;

[0027] 3. Driving mechanism; 301. Motor; 302. Connecting seat; 303. Driving wheel; 304. Auxiliary wheel;

[0028] 4. Drum screen;

[0029] 5. Dust cover;

[0030] 6. Screen plate;

[0031] 7. Screen plate limit assembly; 701. Round head bolt; 702. C-shaped block; 703. T-shaped slider. DETAILED DESCRIPTION

[0032] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Example:

[0036] As attached Figure 1 To the attached Figure 6 As shown: A drum sand screening machine includes a base bracket 1, a vibration assembly 2 is fixedly mounted on the base bracket 1, a drum screen 4 is arranged above the vibration assembly 2, a driving mechanism 3 for cooperating with the vibration assembly 2 and the drum screen 4 is installed on the vibration assembly 2, and a screen plate 6 is arranged in the middle of the inner cavity of the vibration assembly 2;

[0037] The vibration assembly 2 includes a vibration bin 201 fixedly mounted on the top surface of the base bracket 1, a shaft 202 is rotatably mounted in the middle of the vibration bin 201, and multiple toothed discs 203 are fixedly mounted at both ends of the shaft 202. Two C-shaped slot plates 207 are symmetrically slidably provided in the inner cavity of the vibration bin 201, and a retaining plate 210 is fixedly mounted on the front lower end of the C-shaped slot plate 207. The retaining plate 210 is inclined. The C-shaped slot plate 207 is located directly below the multiple toothed disc 203 on the same side. Several groups of sliding rods 208 are fixedly mounted on the bottom surface of the C-shaped slot plate 207. The lower ends of the sliding rods 208 extend through the bottom surface of the vibration bin 201, and the outer wall surface of the sliding rod 208 is sleeved with a spring 209.

[0038] The driving mechanism 3 includes a motor 301 fixedly mounted on the middle of the top surface of the left end of the vibration bin 201, a connecting seat 302 fixedly mounted on the vibration bin 201 just in front of the rotating end of the motor 301, a driving wheel 303 used in conjunction with the drum screen 4 is rotatably mounted on the middle of the upper end of the connecting seat 302, one end of the shaft 202 is rotatably arranged on the middle of the lower end of the connecting seat 302, the rotating end of the motor 301 is fixedly connected to the middle of one side of the driving wheel 303, and two sets of auxiliary wheels 304 used in conjunction with the drum screen 4 are rotatably mounted on the top surface of the vibration bin 201;

[0039] The vibration assembly 2 further includes a driving sprocket 205 fixedly mounted on the rotating end of the motor 301 and a driven sprocket 204 mounted on one end of the shaft 202. The driven sprocket 204 is located directly below the driving sprocket 205. A chain 206 is installed between the driven sprocket 204 and the driving sprocket 205.

[0040] A sieve plate slot is provided in the middle of the front wall of the vibration chamber 201, the size of which matches the C-shaped slot plate 207. A sieve plate 6 is slidably installed in the sieve plate slot, and the width of the sieve plate 6 matches the C-shaped slot plate 207.

[0041] On it, the motor 301 drives the driving wheel 303 to rotate, so that the drum screen 4 performs preliminary screening of the incoming sand. Since a chain 206 is installed between the driving sprocket 205 and the driven sprocket 204 on the shaft 202, the shaft 202 rotates when the motor 301 rotates, and the multi-toothed disk 203 on the shaft 202 rotates, driving the C-shaped slot plate 207 to slide downward to squeeze the spring 209 sleeved on the outside of the sliding rod 208. When the tooth block of the multi-toothed disk 203 disengages from the contact with the C-shaped slot plate 207, the spring 209 releases its elastic potential energy to drive the C-shaped slot plate 207 to reset, thereby reciprocating the vibration of the sieve plate 6 between the two C-shaped slot plates 207, and then the sieve plate 6 further screens the sand falling from the drum screen 4, and the large particles of aggregate falling on the sieve plate 6 roll freely out of the vibration bin 201 along the inclined direction of the sieve plate 6.

[0042] As attached Figure 1 To the attached Figure 6 As shown, in some embodiments, a sieve plate limiting assembly 7 that matches the sieve plate 6 is slidably installed on the middle of the front side wall of the vibration bin 201.

[0043] The sieve plate limiting assembly 7 includes a C-shaped block 702, a round head bolt 701 is threadedly installed in the middle of the C-shaped block 702, and T-shaped sliders 703 are fixedly installed at the upper and lower ends of the C-shaped block 702. The T-shaped slider 703 is slidably arranged in a T-shaped slot opened on the front wall of the vibration bin 201, and the opening length of the T-shaped slot is greater than the opening length of the sieve plate slot;

[0044] When the sand screened by the drum screen 4 needs to be further screened, the sieve plate 6 is slid into the sieve plate slot, and the sieve plate limiting assembly 7 is further slid as a whole to the middle of the sieve plate slot. The round head bolt 701 on the C-shaped block 702 is rotated so that the front end of the round head bolt 701 is against the front wall of the sieve plate 6, thereby making the sieve plate 6 completely located in the middle of the C-shaped slot plate 207;

[0045] When secondary screening is not required, the sieve plate limiting assembly 7 only needs to be slid as a whole into one end of the T-slot to remove the sieve plate 6 or replace it with a sieve plate 6 with a smaller sieve hole. The replacement is convenient and quick, and the drum sand screening machine has better adaptability.

[0046] As attached Figure 1 To the attached Figure 6 As shown, in some embodiments, a dust cover 5 is installed in the middle of the top surface of the vibration bin 201, and the dust cover 5 is arranged on the outside of the drum screen 4;

[0047] The dust cover 5 is provided to prevent sand from overflowing from the drum screen 4 during the rotating screening process, thereby preventing the sand from overflowing and entering the vibration chamber 201.

[0048] The specific usage and function of this embodiment are as follows:

[0049] After the screen plate 6 is installed, the motor 301 rotates to drive the driving wheel 303 to rotate, so that the drum screen 4 performs preliminary screening of the incoming sand. Since a chain 206 is installed between the driving sprocket 205 and the driven sprocket 204 on the shaft 202, the shaft 202 rotates as the motor 301 rotates, and the multi-toothed disc 203 on the shaft 202 rotates, driving the C-shaped slot plate 207 to slide downward to squeeze the spring 209 sleeved on the outer side of the sliding rod 208. When the tooth block of the multi-toothed disc 203 is out of contact with the C-shaped slot plate 207, the spring 209 releases its elastic potential energy to drive the C-shaped slot plate 207 to return to its original position, thereby reciprocating the vibration of the screen plate 6 between the two C-shaped slot plates 207, and then the screen plate 6 is used to further screen the sand falling from the drum screen 4, and the large particles of aggregate falling on the screen plate 6 are freely rolled down from the vibration bin 201 along the inclined direction of the screen plate 6, thereby obtaining sand that is more suitable for use.

[0050] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A drum sand screening machine, characterized by: The invention comprises a base support (1), a vibration assembly (2) is fixedly mounted on the base support (1), a drum screen (4) is arranged above the vibration assembly (2), a driving mechanism (3) used in conjunction with the vibration assembly (2) and the drum screen (4) is mounted on the vibration assembly (2), and a sieve plate (6) is arranged in the middle of the inner cavity of the vibration assembly (2); The vibration assembly (2) includes a vibration chamber (201) fixedly mounted on the top surface of the base bracket (1), a shaft (202) being rotatably mounted in the middle of the vibration chamber (201), and multiple toothed discs (203) being fixedly mounted at both ends of the shaft (202), and two C-shaped slot plates (207) being symmetrically slidably mounted in the inner cavity of the vibration chamber (201), and a soil retaining plate (210) being fixedly mounted on the front lower end of the C-shaped slot plate (207), and the soil retaining plate (210) being inclined, and the C-shaped slot plate (207) being located directly below the multiple toothed disc (203) on the same side, and a plurality of groups of sliding rods (208) being fixedly mounted on the bottom surface of the C-shaped slot plate (207), and the lower end of the sliding rod (208) passing through the bottom surface of the vibration chamber (201), and a spring (209) being sleeved on the outer wall surface of the sliding rod (208); The driving mechanism (3) comprises a motor (301) fixedly mounted on the middle of the top surface of the left end of the vibration bin (201); a connecting seat (302) is fixedly mounted on the vibration bin (201) in front of the rotating end of the motor (301); a driving wheel (303) used in conjunction with the drum screen (4) is rotatably mounted on the middle of the upper end of the connecting seat (302); one end of the shaft (202) is rotatably mounted on the middle of the lower end of the connecting seat (302); the rotating end of the motor (301) is fixedly connected to the middle of one side of the driving wheel (303); and two sets of auxiliary wheels (304) used in conjunction with the drum screen (4) are rotatably mounted on the top surface of the vibration bin (201); The vibration assembly (2) further comprises a driving sprocket (205) fixedly mounted on the rotating end of the motor (301) and a driven sprocket (204) mounted on one end of the shaft (202), wherein the driven sprocket (204) is located directly below the driving sprocket (205), and a chain (206) is mounted between the driven sprocket (204) and the driving sprocket (205).

2. A drum sand screening machine according to claim 1, characterized in that: A sieve plate groove having a size matching that of the C-shaped slot plate (207) is provided in the middle of the front wall of the vibration chamber (201), and a sieve plate (6) is slidably installed in the sieve plate groove, and the width of the sieve plate (6) matches that of the C-shaped slot plate (207).

3. A drum sand screening machine as claimed in claim 2, characterized in that: A sieve plate limiting assembly (7) matching the sieve plate (6) is slidably mounted on the middle portion of the front side wall of the vibration bin (201).

4. A drum sand screening machine as claimed in claim 3, characterized in that: The sieve plate limiting assembly (7) comprises a C-shaped block (702), a round head bolt (701) is threadedly installed in the middle of the C-shaped block (702), and T-shaped sliders (703) are fixedly installed at the upper and lower ends of the C-shaped block (702), and the T-shaped sliders (703) are slidably arranged in a T-shaped slot provided on the front wall of the vibration chamber (201), and the length of the T-shaped slot is greater than the length of the sieve plate slot.

5. The drum sand screening machine according to claim 1, characterized in that: A dust cover (5) is installed in the middle of the top surface of the vibration bin (201), and the dust cover (5) is arranged on the outside of the drum screen (4).

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