Sand screening machine for constructional engineering

Abstract

The utility model discloses a sand screening machine for constructional engineering, which comprises a workbench, a base plate, a turnover mechanism, a screen mesh, a limiting roller, a reciprocating motion mechanism, an auxiliary supporting mechanism and a cleaning anti-blocking mechanism, the base plate is arranged in the workbench, the left side and the right side of the base plate are respectively and fixedly provided with a rotating shaft, and the rotating shafts are rotatably connected with the workbench; a turnover mechanism used for driving the rotating shaft and the base plate to rotate is installed on the workbench, a plurality of auxiliary supporting mechanisms used for supporting the base plate are installed on the lower side of the workbench, a screen is installed in the base plate, a plurality of screen holes are formed in the screen, and a plurality of limiting rolling wheels inserted into the base plate are installed on the outer side of the screen. A reciprocating motion mechanism used for driving the screen to move left and right is installed on the base plate, and a cleaning anti-blocking mechanism used for cleaning the screen is installed on the workbench. The sand screening and impurity removing device is convenient for screening and impurity removing of sand; the screen is convenient to clean, and meshes of the screen are prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening machines, in particular to a sand screening machine for construction engineering. Background Art

[0002] A large amount of sand is needed for construction projects, and the sand is often mixed with some large particles of impurities, so the sand needs to be screened and removed before use. Chinese patent CN215029649U discloses a sand screening machine for construction projects, including a sand screening machine protective shell, a large piece rotating crushing device, a convection air drying device, an eccentric rotating elastic shaking type sand screening device, a self-moving fine sand diversion device, a sand screening feed nozzle and a fine sand discharge door. The utility model belongs to the technical field of sand screening for construction projects, specifically a sand screening machine for construction projects, which adopts a combination of a main crushing bevel knife and an auxiliary crushing tooth to achieve the technical effect of completely crushing large pieces of sand, adopts a convection air drying method to achieve the technical effect of completely drying wet sand, and adopts an eccentric rotating elastic shaking method to achieve the technical effect of elastic shaking screening of sand, which effectively solves the problem that the sand screening machine for construction projects on the market currently has poor effect, complex structure, and inconvenient maintenance.

[0003] The above patent screens sand through a sand screening net when in use, but it lacks the function of cleaning the sand screening net and is prone to clogging. In the actual screening process, there will be some impurities whose particle size is similar to the mesh size on the sand screening net, making it easy for the impurities to get stuck in the mesh of the sand screening net and cause clogging. Therefore, in view of the above situation, it is urgent to develop a sand screening machine for construction projects that is convenient for screening and removing sand, convenient for cleaning the screen, and prevents the mesh of the screen from being clogged, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of the utility model is to provide a sand screening machine for construction engineering to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The sand screening machine for construction engineering comprises a workbench, a base plate, a turning mechanism, a screen, a limiting roller, a reciprocating mechanism, an auxiliary supporting mechanism and a cleaning and anti-blocking mechanism. The workbench is provided with a base plate, a rotating shaft is fixed on both the left and right sides of the base plate, the rotating shaft is rotatably connected with the workbench, a turning mechanism for driving the rotating shaft and the base plate to rotate is installed on the workbench, a plurality of auxiliary supporting mechanisms for supporting the base plate are installed on the lower side of the workbench, a screen is installed in the base plate, a plurality of screen holes are arranged on the screen, a plurality of limiting rollers inserted into the base plate are installed on the outer side of the screen, and a rotating mechanism for driving the screen to move left and right is installed on the base plate. A reciprocating mechanism, a cleaning and anti-blocking mechanism for cleaning the screen is installed on the workbench, and the cleaning and anti-blocking mechanism includes: a third motor, a third gear, a fourth gear, a support shaft, a rotating plate, a second electric telescopic rod and a brush. The third motor is fixed on the workbench, and the support shaft is rotatably connected to the workbench. A third gear is installed on the output shaft of the third motor, and a fourth gear meshing with the third gear is installed on one side of the third gear. The fourth gear is installed on the support shaft, a rotating plate is fixed on the top of the support shaft, and a second electric telescopic rod is fixed on the top of the rotating plate, and the output end of the second electric telescopic rod is fixed to the brush.

[0007] Preferably, a limiting sliding groove for limiting the movement of the roller is provided in the base plate.

[0008] Preferably: the flipping mechanism comprises: a first motor, a first gear and a second gear, the first motor is fixed on the workbench, a first gear is installed on the output shaft of the first motor, a second gear meshing with the first gear is installed on one side of the first gear, and the second gear is installed on the rotating shaft.

[0009] Preferably: the reciprocating mechanism includes: a second motor, a turntable, a rocker arm, a first pin and a second pin, the second motor is fixed to the lower side of the base plate, a turntable is mounted on the output shaft of the second motor, a rocker arm connected to the screen is mounted on the turntable, the right end of the rocker arm is rotatably connected to the turntable via the first pin, and the left end of the turntable is rotatably connected to the screen via the second pin.

[0010] Preferably, the auxiliary support mechanism comprises: a first electric telescopic rod and a support plate, the first electric telescopic rod is fixed to the lower side of the workbench, and the output end of the first electric telescopic rod is fixed to the support plate.

[0011] Preferably: a control panel is installed on the workbench, and the first motor, the second motor, the first electric telescopic rod, the third motor and the second electric telescopic rod are all electrically connected to the control panel.

[0012] The beneficial effects of the utility model are as follows: when the sand screening machine for construction engineering is used, the bottom of the base plate is supported by a plurality of auxiliary supporting mechanisms to improve the stability of the base plate, sand is added to the screen, the turntable is driven to rotate by the second motor, the swing rod is driven to swing by the rotation of the turntable, the screen is driven to move back and forth by the swing of the swing rod, the sand is screened by the screen, the sand passes through the screen holes and falls down, and large particles of impurities mixed in the sand remain on the screen, after the screening is completed, the support plate is driven to move away from the lower side of the base plate by the first electric telescopic rod, and then the base plate is driven to flip up and down by the flip mechanism, the screen is driven to flip up and down by the base plate, and the large particles of impurities remaining on the screen fall down, finally, the third gear, the fourth gear, the support shaft, and the rotating plate are driven to rotate by the third motor, the second electric telescopic rod and the brush are driven to swing back and forth on the upper side of the screen by the rotating plate, and at the same time, the brush is driven to move downward by the second electric telescopic rod, so that the brush is inserted into the screen holes on the screen, and then the impurities blocked in the screen holes are cleaned up by the brush to prevent the screen holes from being blocked. In summary, the utility model is convenient for sand screening and impurity removal; it is convenient for cleaning the screen and prevents the mesh of the screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0015] Figure 3 It is a schematic diagram of the cleaning state of the utility model.

[0016] Figure 4 It is a partial structure diagram of the utility model Figure 1 .

[0017] Figure 5 It is a partial structure diagram of the utility model Figure 2 .

[0018] Legend:

[0019] 1. Workbench; 2. Base plate; 201. Rotating shaft; 202. Limiting slide; 3. Flipping mechanism; 301. First motor; 302. First gear; 303. Second gear; 4. Screen; 401. Screen hole; 5. Limiting roller; 6. Reciprocating mechanism; 601. Second motor; 602. Turntable; 603. Rocker; 604. First pin; 605. Second pin; 7. Auxiliary supporting mechanism; 701. First electric telescopic rod; 702. Support plate; 8. Cleaning and anti-blocking mechanism; 801. Third motor; 802. Third gear; 803. Fourth gear; 804. Support shaft; 805. Rotating plate; 806. Second electric telescopic rod; 807. Brush; 9. Control panel. DETAILED DESCRIPTION

[0020] 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 of 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.

[0021] Specific examples are given below.

[0022] See also Figure 1 to Figure 5In the embodiment of the utility model, the sand screening machine for construction engineering includes a workbench 1, a base plate 2, a turning mechanism 3, a screen 4, a limiting roller 5, a reciprocating mechanism 6, an auxiliary supporting mechanism 7 and a cleaning and anti-blocking mechanism 8. The base plate 2 is installed in the workbench 1, and a rotating shaft 201 is fixed on both sides of the left and right sides of the base plate 2. The rotating shaft 201 is rotatably connected to the workbench 1. The workbench 1 is equipped with a turning mechanism 3 for driving the rotating shaft 201 and the base plate 2 to rotate. A plurality of auxiliary supporting mechanisms 7 for supporting the base plate 2 are installed on the lower side of the workbench 1. A screen 4 is installed in the base plate 2, and a plurality of sieve holes 401 are arranged on the screen 4. A plurality of limiting rollers 5 inserted into the base plate 2 are installed on the outer side of the screen 4. A limiting slide groove 20 for moving the limiting roller 5 is arranged in the base plate 2. 2, a reciprocating mechanism 6 for driving the screen 4 to move left and right is installed on the substrate 2, and a cleaning and anti-blocking mechanism 8 for cleaning the screen 4 is installed on the workbench 1. When in use, the bottom of the substrate 2 is supported by a plurality of auxiliary supporting mechanisms 7 to improve the stability of the substrate 2, and sand is added to the screen 4, and the screen 4 is driven to move left and right by the reciprocating mechanism 6, and the sand is screened by the screen 4, and the sand falls through the sieve holes 401, and the large particles of impurities mixed in the sand remain on the screen 4. After the screening is completed, the auxiliary supporting mechanism 7 is removed from the lower side of the substrate 2, and then the substrate 2 is driven to flip up and down by the flipping mechanism 3, and the screen 4 is driven to flip up and down by the substrate 2, and the large particles of impurities on the screen 4 fall down. Finally, the impurities stuck in the sieve holes 401 can be cleaned up by the cleaning and anti-blocking mechanism 8.

[0023] The flipping mechanism 3 includes: a first motor 301, a first gear 302 and a second gear 303. The first motor 301 is fixed on the workbench 1. The first gear 302 is installed on the output shaft of the first motor 301. A second gear 303 meshing with the first gear 302 is installed on one side of the first gear 302. The second gear 303 is installed on the rotating shaft 201. When in use, the first motor 301 drives the first gear 302 and the second gear 303 to rotate, and the second gear 303 rotates to drive the rotating shaft 201 and the substrate 2 to flip up and down.

[0024] The reciprocating mechanism 6 includes: a second motor 601, a turntable 602, a rocker 603, a first pin 604 and a second pin 605. The second motor 601 is fixed to the lower side of the base plate 2. The turntable 602 is installed on the output shaft of the second motor 601. The rocker 603 connected to the screen 4 is installed on the turntable 602. The right end of the rocker 603 is rotatably connected to the turntable 602 through the first pin 604, and the left end of the turntable 602 is rotatably connected to the screen 4 through the second pin 605. When in use, the turntable 602 is driven to rotate by the second motor 601, the rocker 603 is driven to swing by the rotation of the turntable 602, and the screen 4 is driven to move back and forth by the swing of the rocker 603.

[0025] The auxiliary support mechanism 7 includes: a first electric telescopic rod 701 and a support plate 702 . The first electric telescopic rod 701 is fixed to the lower side of the workbench 1 , and the output end of the first electric telescopic rod 701 is fixed to the support plate 702 .

[0026] The cleaning and anti-blocking mechanism 8 includes: a third motor 801, a third gear 802, a fourth gear 803, a support shaft 804, a rotating plate 805, a second electric telescopic rod 806 and a brush 807. The third motor 801 is fixed on the workbench 1, and the support shaft 804 is rotatably connected to the workbench 1. The third gear 802 is installed on the output shaft of the third motor 801, and a fourth gear 803 meshing with the third gear 802 is installed on one side of the third gear 802. The fourth gear 803 is installed on the support shaft 804, and a rotating plate 805 is fixed on the top of the support shaft 804. A second electric telescopic rod 806 is fixed on the top, and the output end of the second electric telescopic rod 806 is fixed to the brush 807. When in use, the third motor 801 drives the third gear 802, the fourth gear 803, the support shaft 804, and the rotating plate 805 to rotate, and the rotating plate 805 drives the second electric telescopic rod 806 and the brush 807 to swing back and forth on the upper side of the screen 4. At the same time, the second electric telescopic rod 806 drives the brush 807 to move downward, so that the brush 807 is inserted into the sieve hole 401 on the screen 4, and then the impurities blocked in the sieve hole 401 are cleaned up by the brush 807 to prevent the sieve hole 401 from being blocked.

[0027] A control panel 9 is installed on the workbench 1, and the first motor 301, the second motor 601, the first electric telescopic rod 701, the third motor 801 and the second electric telescopic rod 806 are all electrically connected to the control panel 9 for convenient control and use.

[0028] Working principle: When the sand screening machine for construction engineering is used, the bottom of the base plate 2 is supported by multiple auxiliary support mechanisms 7 to improve the stability of the base plate 2, and sand is added to the screen 4. The turntable 602 is driven to rotate by the second motor 601, and the swing rod 603 is driven to swing by the rotation of the turntable 602, and the screen 4 is driven to move back and forth by the swing of the swing rod 603. The sand is screened by the screen 4, and the sand falls through the screen hole 401. The large particles of impurities mixed in the sand remain on the screen 4. After the screening is completed, the support plate 702 is driven to move away from the lower side of the base plate 2 by the first electric telescopic rod 701, and then, the sand is screened by the flip machine. The structure 3 drives the substrate 2 to flip up and down, and drives the screen 4 to flip up and down through the substrate 2, and the remaining large particles of impurities on the screen 4 fall down. Finally, the third gear 802, the fourth gear 803, the support shaft 804, and the rotating plate 805 are driven to rotate by the third motor 801, and the second electric telescopic rod 806 and the brush 807 are driven to swing back and forth on the upper side of the screen 4 through the rotating plate 805. At the same time, the brush 807 is driven to move downward through the second electric telescopic rod 806, so that the brush 807 is inserted into the sieve hole 401 on the screen 4, and then the impurities blocked in the sieve hole 401 are cleaned up by the brush 807 to prevent the sieve hole 401 from being blocked.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sand screening machine for construction engineering, characterized in that: The invention comprises a workbench (1), a base plate (2), a turning mechanism (3), a screen (4), a limiting roller (5), a reciprocating mechanism (6), an auxiliary supporting mechanism (7) and a cleaning and anti-blocking mechanism (8), wherein the base plate (2) is installed in the workbench (1), a rotating shaft (201) is fixed on both the left and right sides of the base plate (2), the rotating shaft (201) is rotatably connected to the workbench (1), and a rotating shaft (201) is installed on the workbench (1) for driving the rotating shaft (201) and the base plate (2 ) is provided with a turning mechanism (3) for rotating, a plurality of auxiliary supporting mechanisms (7) for supporting the substrate (2) are installed on the lower side of the workbench (1), a screen (4) is installed in the substrate (2), a plurality of screen holes (401) are arranged on the screen (4), a plurality of limiting rollers (5) inserted into the substrate (2) are installed on the outer side of the screen (4), a reciprocating mechanism (6) for driving the screen (4) to move left and right is installed on the substrate (2), and the workbench (1) A cleaning and anti-blocking mechanism (8) for cleaning the screen (4) is installed on the workbench (1), the cleaning and anti-blocking mechanism (8) comprising: a third motor (801), a third gear (802), a fourth gear (803), a support shaft (804), a rotating plate (805), a second electric telescopic rod (806) and a brush (807), the third motor (801) being fixed on the workbench (1), the support shaft (804) being rotatably connected to the workbench (1), and the third motor (80 1) is mounted on the output shaft of the third gear (802), a fourth gear (803) meshing with the third gear (802) is mounted on one side of the third gear (802), the fourth gear (803) is mounted on a support shaft (804), a rotating plate (805) is fixed on the top of the support shaft (804), a second electric telescopic rod (806) is fixed on the top of the rotating plate (805), and the output end of the second electric telescopic rod (806) is fixed to a brush (807).

2. The sand screening machine for construction engineering according to claim 1, characterized in that: A limiting sliding groove (202) for limiting the movement of the roller (5) is arranged in the base plate (2).

3. The sand screening machine for construction engineering according to claim 1, characterized in that: The turning mechanism (3) comprises: a first motor (301), a first gear (302) and a second gear (303); the first motor (301) is fixed on the workbench (1); the first gear (302) is mounted on the output shaft of the first motor (301); a second gear (303) meshing with the first gear (302) is mounted on one side of the first gear (302); and the second gear (303) is mounted on the rotating shaft (201).

4. The sand screening machine for construction engineering according to claim 3, characterized in that: The reciprocating mechanism (6) comprises: a second motor (601), a rotating disk (602), a rocker arm (603), a first pin shaft (604) and a second pin shaft (605); the second motor (601) is fixed to the lower side of the base plate (2); the rotating disk (602) is mounted on the output shaft of the second motor (601); the rotating disk (602) is mounted on the rotating disk (602) and the rocker arm (603) is connected to the screen (4); the right end of the rocker arm (603) is rotatably connected to the rotating disk (602) via the first pin shaft (604); and the left end of the rotating disk (602) is rotatably connected to the screen (4) via the second pin shaft (605).

5. The sand screening machine for construction engineering according to claim 4, characterized in that: The auxiliary support mechanism (7) comprises: a first electric telescopic rod (701) and a support plate (702); the first electric telescopic rod (701) is fixed to the lower side of the workbench (1); and the output end of the first electric telescopic rod (701) is fixed to the support plate (702).

6. The sand screening machine for construction engineering according to claim 5, characterized in that: A control panel (9) is installed on the workbench (1); the first motor (301), the second motor (601), the first electric telescopic rod (701), the third motor (801) and the second electric telescopic rod (806) are all electrically connected to the control panel (9).

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