Water conservancy construction gravel separation device

Abstract

The utility model belongs to the technical field of sand and gravel screening and separating, and particularly relates to a water conservancy construction sand and gravel separating device which comprises a base. Two long supporting columns are fixedly connected to one side of the top of the base, two short supporting columns are fixedly connected to the other side of the top of the base, the two short supporting columns and the two long supporting columns are matched and fixedly connected with a supporting frame, a screening roller is arranged in the supporting frame, and one end of the circumferential face of the screening roller is sleeved with an annular rack. The other end of the circumferential face of the screening roller is sleeved with two limiting rings, two first motors are installed on one side of the supporting frame, the output ends of the two first motors are both connected with rotating rods, the other ends of the rotating rods are rotationally installed on the side wall, away from the first motors, of the supporting frame, and one ends of the rotating rods are sleeved with gears. The gear is meshed with the annular rack; according to the multi-stage stone screening device, multi-stage screening operation can be achieved, then screening separation of large-particle stones, small-particle stones and sand can be rapidly achieved, and meanwhile the screening effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening and separation, in particular to a sand and gravel separation device for water conservancy construction. Background Art

[0002] In water conservancy construction, different parts and structures have different requirements for sand and gravel aggregates. Sand and gravel of different particle sizes are required in the concrete mix to achieve the best matching effect. Therefore, when using sand and gravel, sand and gravel of different particle sizes need to be screened, separated and collected for subsequent use according to demand, thereby ensuring the construction quality of water conservancy projects.

[0003] The existing sand and gravel separation device is mainly composed of a frame, a drum, and a transmission mechanism. When screening, after the material enters the drum, the motor is operated to make the transmission assembly drive the drum to rotate, so that small particles of sand and gravel fall into the small particle collection tank through the leakage holes on the drum, and large particles of sand and gravel slide along the inclined drum into the large particle collection tank, so that sand and gravel of different particle sizes can be screened, separated and collected.

[0004] The existing sand and gravel separation device cannot achieve multi-stage screening, resulting in the screening result being not detailed enough. Although it is easy to screen and separate large-grained gravel from small-grained gravel, it is difficult to separate small-grained gravel from sand. In addition, during the screening process, the screen is prone to blockage, thus affecting the screening effect. Therefore, a water conservancy construction sand and gravel separation device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes a sand and gravel separation device for water conservancy construction.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a water conservancy construction sand and gravel separation device described in the utility model includes a base; two long support columns are fixedly connected to one side of the top of the base, and two short support columns are fixedly connected to the other side of the top of the base. The two short support columns and the two long support columns are fixedly connected to a support frame, and a screening drum is arranged in the support frame. An annular rack is set at one end of the circumferential surface of the screening drum, and two limit rings are set at the other end of the circumferential surface of the screening drum. Two first motors are installed on one side of the support frame, and the output ends of the two first motors are connected to a rotating rod, and the other end of the rotating rod is rotatably installed on a side wall of the support frame away from the first motor. A gear is set at one end of the rotating rod, and the gear and the annular rack are meshed with each other. The rotating rod The other end of the screen is provided with an auxiliary wheel, and the auxiliary wheel is arranged between two limiting rings. Two U-shaped frames are fixedly connected to the support frame, and three hollow tubes are fixedly connected between the two U-shaped frames. Each hollow tube is connected with a plurality of nozzles. When screening, after the material enters the screening drum, the first motor is used to drive the gear and the auxiliary wheel to rotate, and the screening drum is rotated under the cooperation of the annular rack and the limiting ring. At the same time, the sand and gravel materials can be washed through the cleaning nozzle, so that the clean large-grained sand and gravel are intercepted in the screening drum and slide down and discharged along the screening drum, so that the small-grained sand and gravel fall into the small-grained gravel collecting tank through the filter holes on the screening drum, so that the large-grained gravel and the small-grained gravel can be quickly screened and separated.

[0007] Preferably, a bending plate is fixedly connected to the support frame, a supporting plate is fixedly connected to the top of the bending plate, a fixing seat is installed on the support plate, a pendulum is hinged in the fixing seat, a first spring is fixedly connected between the pendulum and the support plate, a supporting seat is fixedly connected to the support plate, a second motor is installed on the support seat, a rotating disk is installed at the output end of the second motor, an eccentric rod is fixedly connected to the rotating disk, during the rotation and screening process of the screening drum, the second motor is operated to make the rotating disk drive the eccentric rod to rotate reciprocally, and with the cooperation of the first spring, the pendulum strikes the screening drum reciprocally, which can knock down the sand and gravel blocked in the filter holes, avoid the phenomenon of filter holes on the screening drum being blocked, thereby improving the screening effect of the screening drum.

[0008] Preferably, two long sleeves are fixedly connected to the base, and a second spring is fixedly connected to the inner wall of the bottom end of the two long sleeves, and a long movable rod is fixedly connected to the top of the second spring, and two short sleeves are fixedly connected to the base, and a third spring is fixedly connected to the inner wall of the bottom end of the two short sleeves, and a short movable rod is fixedly connected to the top of the third spring, and the tops of the two long movable rods and the two short movable rods are fixedly connected to fixed blocks, and the four fixed blocks are cooperated with and fixed to a small particle stone collecting groove, and the small particle stone collecting groove is arranged directly below the screening drum, and a plurality of leakage holes are provided at the bottom of the small particle stone collecting groove, and a small particle stone discharging port is provided on the side wall of the small particle stone collecting groove, and a connecting plate is fixedly connected between the two long supporting columns and the two short supporting columns, and the two connecting plates are cooperated to rotate and install a rotating shaft, and cams are mounted on both ends of the rotating shaft, and the cams are connected to the small particle stone collecting groove. The bottom of the gravel collecting trough is in contact with each other, and a third motor is installed on the connecting plate at the bottom. The output end of the third motor is connected to one end of the rotating shaft. During the screening process, after the small particles of sand and gravel fall into the small particle gravel collecting trough, the third motor is used to drive the rotating shaft to drive the cam to rotate reciprocatingly. Under the cooperation of the second spring, the long movable rod, the third spring and the short movable rod, the small particle gravel collecting trough is shaken reciprocatingly, so that the small particles of gravel slide along the bottom of the small particle gravel collecting trough and are discharged through the small particle gravel discharge port, so that the sand containing sewage falls into the sand collection trough, so that the small particles of gravel and sand can be quickly screened and separated. At the same time, through reciprocating oscillation screening, the leakage holes at the bottom of the small particle gravel collecting trough can be avoided from being blocked, thereby improving the screening effect.

[0009] Preferably, a sand collecting trough is fixedly connected to the base, and the sand collecting trough is arranged below the small-particle gravel collecting trough, a gauze is fixed in the sand collecting trough, a drain pipe is connected to the bottom end of one side of the sand collecting trough, and a sand discharge port is opened on the sand collecting trough. During the screening process, after the sand falls into the sand collecting trough, the gauze can be used to make the sewage fall to the bottom of the sand collecting trough, and the sand is intercepted on the gauze and discharged through the sand discharge port.

[0010] Preferably, a long support rod is fixedly connected to the base, and a feed hopper is fixedly connected to the top of the long support rod. When the device is used, the feed hopper is provided to facilitate adding the material to be screened into the screening drum.

[0011] The utility model is beneficial in that:

[0012] 1. During screening, after the material enters the screening drum, the first motor is used to drive the rotating rod to drive the gear and the auxiliary wheel to rotate, and the screening drum is rotated under the cooperation of the annular rack and the limit ring, so that large-grained stones and small-grained sand and gravel can be quickly screened and separated. The third motor is used to drive the cam to rotate reciprocatingly, and the small-grained stone collecting trough is reciprocated and shaken under the cooperation of the second spring, the long movable rod, the third spring and the short movable rod, so that the small-grained stone and sand can be quickly screened and separated, so that multi-stage screening operation can be realized, and then the screening and separation of large-grained stones, small-grained stones and sand can be quickly realized, and the screening effect is guaranteed at the same time;

[0013] 2. In the process of rotating and screening the screening drum, the utility model operates the second motor to make the rotating disk drive the eccentric rod to rotate back and forth, and with the cooperation of the first spring, the pendulum reciprocates to knock the screening drum, which can knock down the sand and gravel blocked in the filter holes, avoiding the phenomenon of clogging of the filter holes on the screening drum, thereby improving the screening effect of the screening drum. At the same time, through reciprocating oscillating screening, it can avoid the leakage holes at the bottom of the small-grain stone collecting tank from being blocked, thereby improving the screening effect; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall main perspective structure of the screening device;

[0016] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the screening device;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the screening drum assembly;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the striking mechanism;

[0019] Figure 5 It is a schematic diagram of the cutaway three-dimensional structure of the long casing and the short casing;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the cam assembly.

[0021] In the figure: 1, base; 2, short support column; 3, long support column; 4, support frame; 5, screening drum; 6, limit ring; 7, ring rack; 8, rotating rod; 9, auxiliary wheel; 10, gear; 11, first motor; 12, U-shaped frame; 13, hollow tube; 14, bending plate; 15, support plate; 16, fixed seat; 17, pendulum; 18, first spring; 19, second motor; 20, rotating disk; 21, eccentric rod; 22 , short sleeve; 23, the third spring; 24, the short movable rod; 25, the long sleeve; 26, the second spring; 27, the long movable rod; 28, the fixed block; 29, the small-grain stone collecting trough; 30, the leakage hole; 31, the small-grain stone discharge port; 32, the sand collecting trough; 33, the gauze; 34, the sand discharge port; 35, the connecting plate; 36, the third motor; 37, the rotating shaft; 38, the cam; 39, the long support rod; 40, the feed hopper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3As shown, a sand and gravel separation device for water conservancy construction includes a base 1; two long support columns 3 are fixedly connected to one side of the top of the base 1, and two short support columns 2 are fixedly connected to the other side of the top of the base 1. The two short support columns 2 and the two long support columns 3 are cooperated to be fixedly connected to a support frame 4, and a screening drum 5 is arranged in the support frame 4. One end of the circumferential surface of the screening drum 5 is covered with an annular rack 7, and the other end of the circumferential surface of the screening drum 5 is covered with two limiting rings 6. Two first motors 11 are installed on one side of the support frame 4, and the output ends of the two first motors 11 are connected to a rotating rod 8, and the other end of the rotating rod 8 is rotatably installed on a side wall of the support frame 4 away from the first motor 11. One end of the rotating rod 8 is covered with a gear 10, and the gear 10 is meshed with the annular rack 7, and the other end of the rotating rod 8 is covered with an auxiliary wheel 9, and the auxiliary wheel 9 is arranged between the two limiting rings 6. Two U-shaped frames 12 are fixedly connected to the support frame 4, and three hollow tubes 13 are fixedly connected between the two U-shaped frames 12. Each hollow tube 13 is connected with a plurality of nozzles. A long support rod 39 is fixedly connected to the base 1, and a feed hopper 40 is fixedly connected to the top of the long support rod 39. When screening, after the material enters the screening drum 5, the first motor 11 is used to drive the gear 10 and the auxiliary wheel 9 to rotate, and the screening drum 5 is rotated with the cooperation of the annular rack 7 and the limit ring 6. At the same time, the sand and gravel materials can be washed by the cleaning nozzle, so that the clean large-grained sand and gravel are intercepted in the screening drum 5 and slide down and discharged along the screening drum 5, so that the small-grained sand and gravel fall into the small-grained stone collecting tank 29 through the filter holes on the screening drum 5, so that the large-grained stone and the small-grained sand and gravel can be quickly screened and separated.

[0024] See also Figure 2 and Figure 4 As shown, a bending plate 14 is fixedly connected to the support frame 4, a supporting plate 15 is fixedly connected to the top of the bending plate 14, a fixing seat 16 is installed on the supporting plate 15, a pendulum 17 is hinged in the fixing seat 16, a first spring 18 is fixedly connected between the pendulum 17 and the supporting plate 15, a supporting seat is fixedly connected to the supporting plate 15, a second motor 19 is installed on the supporting seat, a rotating disk 20 is installed at the output end of the second motor 19, and an eccentric rod 21 is fixedly connected to the rotating disk 20; during the rotation and screening process of the screening drum 5, the second motor 19 is operated to make the rotating disk 20 drive the eccentric rod 21 to rotate reciprocatingly, and with the cooperation of the first spring 18, the pendulum 17 reciprocatingly knocks the screening drum 5, which can knock down the sand and gravel blocked in the filter hole, avoid the phenomenon of filter hole blockage on the screening drum 5, thereby improving the screening effect of the screening drum 5.

[0025] See also Figure 5-6As shown, two long sleeves 25 are fixedly connected to the base 1, and the second springs 26 are fixedly connected to the inner walls of the bottom ends of the two long sleeves 25, and the top of the second spring 26 is fixedly connected to a long movable rod 27, and two short sleeves 22 are fixedly connected to the base 1, and the third springs 23 are fixedly connected to the inner walls of the bottom ends of the two short sleeves 22, and the top of the third spring 23 is fixedly connected to a short movable rod 24, and the tops of the two long movable rods 27 and the two short movable rods 24 are fixedly connected to fixed blocks 28, and the four fixed blocks 28 A small-grain gravel collecting trough 29 is fixedly connected thereto, and the small-grain gravel collecting trough 29 is arranged directly below the screening drum 5. A plurality of leak holes 30 are provided at the bottom of the small-grain gravel collecting trough 29, and a small-grain gravel discharge port 31 is provided on the side wall of the small-grain gravel collecting trough 29. A connecting plate 35 is fixedly connected between the two long support columns 3 and the two short support columns 2. A rotating shaft 37 is installed on the two connecting plates 35 for rotation. Cams 38 are provided at both ends of the rotating shaft 37. The cam 38 is in contact with the bottom of the small-grain gravel collecting trough 29, and a third motor 36 is installed on the connecting plate 35 at the bottom, and the output end of the third motor 36 is connected to one end of the rotating shaft 37; during the screening process, after the small-grain gravel falls into the small-grain gravel collecting trough 29, the third motor 36 is used to make the rotating shaft 37 drive the cam 38 to rotate reciprocatingly, and under the cooperation of the second spring 26, the long movable rod 27, the third spring 23 and the short movable rod 24, the small-grain gravel collecting trough 29 is shaken reciprocatingly, so that the small-grain gravel slides along the bottom of the small-grain gravel collecting trough 29 and is discharged through the small-grain gravel discharge port 31, so that the sand containing sewage falls into the sand collecting trough 32, so that the small-grain gravel and the sand can be quickly screened and separated, and at the same time, through reciprocating oscillation screening, the leakage hole 30 at the bottom of the small-grain gravel collecting trough 29 can be prevented from being blocked, thereby improving the screening effect.

[0026] See also Figure 6 As shown, a sand collecting trough 32 is fixedly connected to the base 1, and the sand collecting trough 32 is arranged below the small-particle gravel collecting trough 29. A gauze 33 is fixed in the sand collecting trough 32. A drainage pipe is connected to the bottom end of one side of the sand collecting trough 32, and a sand discharge port 34 is opened on the sand collecting trough 32. During the screening process, after the sand falls into the sand collecting trough 32, the gauze 33 can be used to make the sewage fall to the bottom of the sand collecting trough 32, and the sand is intercepted on the gauze 33 and discharged through the sand discharge port 34.

[0027] Working principle: Since the existing sand and gravel separation device cannot achieve multi-stage screening, the screening result is not detailed enough. Although it is easy to screen and separate large-grained gravel from small-grained gravel, it is difficult to separate small-grained gravel from sand. In the screening process, the screen is prone to blockage, which affects the screening effect. Therefore, a water conservancy construction sand and gravel separation device is proposed to address the above problems. During screening, after the material enters the screening drum 5, the first motor 11 is used to drive the gear 10 and the auxiliary wheel 9 to rotate. Under the cooperation of the annular rack 7 and the limit ring 6, the screening drum 5 is rotated. At the same time, the sand and gravel material can be washed through the cleaning nozzle, so that the clean large-grained gravel is intercepted in the screening drum 5 and slides down and discharged along the screening drum 5, so that the small-grained gravel falls into the small-grained gravel collecting tank 29 through the filter holes on the screening drum 5, so that the large-grained gravel and the small-grained gravel can be quickly screened and separated, and the small-grained gravel falls into the small-grained gravel collecting tank 29. After the small-grained stone collecting groove 29 is filled with the wastewater, the third motor 36 is used to drive the rotating shaft 37 to drive the cam 38 to rotate back and forth. Under the cooperation of the second spring 26, the long movable rod 27, the third spring 23 and the short movable rod 24, the small-grained stone collecting groove 29 is shaken back and forth, so that the small-grained stone slides along the bottom of the small-grained stone collecting groove 29 and is discharged through the small-grained stone discharging port 31, and the sand containing the sewage falls into the sand collecting groove 32, so that the small-grained stone and the sand can be quickly discharged. Screening and separation are performed, and at the same time, reciprocating oscillating screening can avoid clogging of the leakage hole 30 at the bottom of the small-particle stone collecting tank 29, thereby improving the screening effect. After the sand falls into the sand collecting tank 32, the gauze 33 can be used to make the sewage fall to the bottom of the sand collecting tank 32. The sand is intercepted on the gauze 33 and discharged through the sand discharge port 34. Through multi-stage screening operations, large-particle stone, small-particle stone and sand can be quickly screened and separated, and the screening effect is guaranteed at the same time.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above shows and describes the basic principle, 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, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sand and gravel separation device for water conservancy construction, characterized in that: The invention comprises a base (1); two long support columns (3) are fixedly connected to one side of the top of the base (1); two short support columns (2) are fixedly connected to the other side of the top of the base (1); the two short support columns (2) cooperate with the two long support columns (3) to be fixedly connected to a support frame (4); a screening drum (5) is arranged in the support frame (4); one end of the circumferential surface of the screening drum (5) is provided with an annular rack (7); the other end of the circumferential surface of the screening drum (5) is provided with two limit rings (6); one side of the support frame (4) is provided with two first motors (11); the output ends of the two first motors (11) are both connected to a rotating rod (8); the other end of the rotating rod (8) is rotatably mounted on a side wall of the support frame (4) away from the first motor (11); A gear (10) is sleeved on one end of the rotating rod (8), and the gear (10) and the annular rack (7) are meshed with each other. An auxiliary wheel (9) is sleeved on the other end of the rotating rod (8), and the auxiliary wheel (9) is arranged between two limiting rings (6). Two U-shaped frames (12) are fixedly connected to the support frame (4), three hollow tubes (13) are fixedly connected between the two U-shaped frames (12), and each hollow tube (13) is connected to a plurality of nozzles. A bending plate (14) is fixedly connected to the support frame (4), and a support plate (15) is fixedly connected to the top end of the bending plate (14). A fixing seat (16) is installed on the support plate (15), a pendulum (17) is hingedly connected inside the fixing seat (16), and a first spring (18) is fixedly connected between the pendulum (17) and the support plate (15).

2. A sand and gravel separation device for water conservancy construction according to claim 1, characterized in that: A support seat is fixedly connected to the support plate (15), a second motor (19) is mounted on the support seat, a rotating disk (20) is mounted on the output end of the second motor (19), and an eccentric rod (21) is fixedly connected to the rotating disk (20).

3. A sand and gravel separation device for water conservancy construction according to claim 1, characterized in that: Two long sleeves (25) are fixedly connected to the base (1), and second springs (26) are fixedly connected to the inner walls of the bottom ends of the two long sleeves (25), and a long movable rod (27) is fixedly connected to the top end of the second spring (26). Two short sleeves (22) are fixedly connected to the base (1), and third springs (23) are fixedly connected to the inner walls of the bottom ends of the two short sleeves (22), and a short movable rod (24) is fixedly connected to the top end of the third spring (23).

4. A sand and gravel separation device for water conservancy construction according to claim 3, characterized in that: The top ends of the two long movable rods (27) and the two short movable rods (24) are fixedly connected with fixed blocks (28), and the four fixed blocks (28) are matched with small-grain stone collecting troughs (29) fixedly connected, and the small-grain stone collecting troughs (29) are arranged directly below the screening drum (5).

5. A sand and gravel separation device for water conservancy construction according to claim 4, characterized in that: A plurality of leakage holes (30) are provided at the bottom of the small-grain stone collecting trough (29), and a small-grain stone discharge port (31) is provided on the side wall of the small-grain stone collecting trough (29).

6. The sand and gravel separation device for water conservancy construction according to claim 1, characterized in that: A connecting plate (35) is fixedly connected between the two long support columns (3) and the two short support columns (2). A rotating shaft (37) is mounted on the two connecting plates (35) for rotation. Cams (38) are mounted on both ends of the rotating shaft (37). The cams (38) are in contact with the bottom of the small-grain stone collecting trough (29). A third motor (36) is mounted on the connecting plate (35) at the bottom. The output end of the third motor (36) is connected to one end of the rotating shaft (37).

7. The sand and gravel separation device for water conservancy construction according to claim 1, characterized in that: A sand collecting trough (32) is fixedly connected to the base (1), and the sand collecting trough (32) is arranged below the small-grain gravel collecting trough (29). A gauze (33) is fixed in the sand collecting trough (32). A drainage pipe is connected to the bottom end of one side of the sand collecting trough (32), and a sand discharge port (34) is provided on the sand collecting trough (32).

8. The sand and gravel separation device for water conservancy construction according to claim 1, characterized in that: A long support rod (39) is fixedly connected to the base (1), and a feed hopper (40) is fixedly connected to the top end of the long support rod (39).

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