Anti-blocking screening net face structure for screening gravel

Abstract

The utility model discloses an anti-blocking screening mesh surface structure for screening gravel. The anti-blocking screening mesh surface structure comprises a screening surface with screening holes; hole adjusting bulges are arranged on the axial outer surfaces of the rolling rods, and the rolling rods correspond to the sieve holes which are longitudinally distributed in the same row on the sieve surface; the vibrating screen further comprises a mounting frame with mounting grooves, and the left side and the right side of the screen face are mounted in the mounting grooves of the mounting frame through elastic pieces capable of generating elastic deformation. When the screen holes are blocked by blocking objects, the side edges, away from the screen face, of the electric telescopic rod A and the electric telescopic rod B do not clamp the screen face any more, the screen face is supported in the mounting frame through the elastic pieces, rolling rods rotate to drive hole adjusting protrusions to jack up the blocking objects, the screen face is buffered through the elastic pieces at the moment, and the situation that the blocking objects are jacked up by the hole adjusting protrusions excessively rigidly, and the screen face is damaged is avoided. The problem that in the jacking process of a fixing rod, excessive hard jacking is likely to be generated on a screen, and consequently damage is caused is solved.

Description

Technical Field

[0001] This utility model relates to an anti-clogging screening screen structure for screening sand and gravel, belonging to the technical field of reagent preparation equipment. Background Technology

[0002] In concrete construction, sand and gravel aggregates of different particle sizes must first be proportioned and mixed to form concrete. Regardless of whether the sand and gravel are natural or manufactured, vibrating screens must be used to screen them during the mining and production process.

[0003] During the use of a vibrating screen, the screen holes may become clogged and require cleaning. Existing technology, as described in Chinese Patent Publication No. CN207103102U, uses a fixed rod to push out the blockage. However, this method can cause excessive force on the screen during the lifting process, leading to damage. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an anti-clogging screening screen structure for screening sand and gravel.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides an anti-clogging screening mesh structure for screening sand and gravel, comprising:

[0007] A sieve surface with sieve holes;

[0008] The rolling rod has an adjustment hole protrusion on its axial outer surface, and the rolling rod corresponds to the screen holes that are distributed in the same row longitudinally on the screen surface;

[0009] It also includes a mounting frame with mounting grooves, and the left and right sides of the screen surface are mounted in the mounting grooves of the mounting frame through elastic elements that can undergo elastic deformation.

[0010] The elastic element is an elastic rubber block.

[0011] The mounting frame is equipped with electric telescopic rods A and B, which are installed on the upper and lower sides respectively. Electric telescopic rods A and B clamp the sides of the screen surface.

[0012] The two mounting frames are fixed with support feet at both ends of their bottom, which are used to fix them to the construction ground.

[0013] A vibrator that provides vibration is mounted on the side of the mounting frame.

[0014] The beneficial effects of this utility model are as follows: when there is a blockage in the screen hole, the electric telescopic rods A and B no longer clamp the side away from the screen surface. The screen surface is supported on the mounting frame by the elastic element. The rolling rod rotates and pushes up the blockage with the adjustment hole protrusion. At this time, the screen surface is buffered by the elastic element, which avoids the adjustment hole protrusion from excessively and rigidly pushing against the blockage and causing damage to the screen surface. This solves the problem that the fixed rod can easily push up the screen too hard during the lifting process, which can lead to damage. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a front view schematic diagram of the rolling rod and screen surface distribution of this utility model;

[0018] Figure 4 This is a rear view schematic diagram of the distribution of the rolling rod and screen surface of this utility model;

[0019] Figure 5 This is a side view schematic diagram of the mounting frame and screen surface distribution of this utility model;

[0020] Figure 6 This is a side view of the elastic element, electric telescopic rod, and electric telescopic rod B of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the support component of this utility model supporting a rigid pipe;

[0022] Figure 8 This is a top view of the support component of this utility model supporting a rigid pipe;

[0023] In the diagram: 1-Screen surface; 11-Screen hole; 2-Rolling rod; 21-Adjusting hole protrusion; 31-Bearing A; 32-Support plate A; 33-Telescopic component A; 34-Support foot; 35-Bearing B; 36-Support plate B; 37-Rotating motor; 38-Telescopic component B; 4-Mounting frame; 41-Elastic component; 42-Electric telescopic rod A; 43-Electric telescopic rod B; 7-Vibrator; 5-Negative pressure generating component; 51-Flexible pipe A; 52-Rigid pipe; 53-Flexible pipe B; 6-Support component; 61-Support groove; 62-Threaded telescopic rod; 63-Bearing D; 64-Clamping block; 65-Adjusting bolt; 66-Rotating adjusting wheel; 67-Bearing E. Detailed Implementation

[0024] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0025] like Figures 1 to 8 As shown.

[0026] This application discloses a vibrating screen structure with adjustable screen aperture, comprising:

[0027] A screen surface 1 has sieve holes 11. Rotatable rollers 2 are installed at intervals below the screen surface 1. Multiple rollers 2 are arranged so that each roller corresponds to a longitudinally arranged row of sieve holes 11 on the screen surface 1. Each roller 2 has multiple adjusting protrusions 21 arranged circumferentially on its outer surface. Each adjusting protrusion 21 has a different width, and the different widths of the adjusting protrusions 21 are connected by a rounded surface.

[0028] The rolling rod 2 rolls below the screen surface 1, so that when the different width adjustment hole protrusions 21 correspond to the screen holes 11, the size of the screen holes 11 is changed, which can meet the screening of different sand and gravel particle sizes. Since the rolling rod 2 rolls below the screen surface 1, it does not need to be displaced on the horizontal plane.

[0029] One end of the rolling rod 2 is rotatably mounted on the bearing A31. The bearing A31 is mounted on the support plate A32 through the bearing seat. The two ends of the support plate A32 are fixedly connected to the telescopic members A33, and the telescopic members A33 are fixedly connected to the support feet 34.

[0030] The other end of the rolling rod 2 is rotatably mounted on the bearing B35. The bearing B35 is mounted on the support plate B36 through the bearing seat. A rotary motor 37 is mounted on the support plate B36. The rotary motor 37 drives the rolling rod 2 to rotate on the bearing A31 and the bearing B35.

[0031] The bottom of the support plate B36 is fixed with a telescopic component B38, which is fixed on the support plate C39. When the rolling rod 2 rotates and corresponds to the adjustment hole protrusion 21 of different widths, the telescopic component B38 and the telescopic component A33 descend, taking the rolling rod 2 down a certain height to obtain vertical space for rotation.

[0032] This application discloses an anti-clogging screening screen structure for screening sand and gravel, comprising:

[0033] The screen surface 1 and the rolling rod 2 have an adjustment hole protrusion 21 on the axial outer surface of the rolling rod 2. The screen surface 1 has screen holes 11, and the rolling rod 2 corresponds to the screen holes 11 distributed in the same longitudinal row on the screen surface 1.

[0034] It also includes a mounting frame 4 with mounting grooves. The left and right sides of the screen surface 1 are mounted in the mounting grooves of the mounting frame 4 through elastic elements 41 that can undergo elastic deformation. The elastic elements 41 are elastic rubber blocks. Electric telescopic rods A42 and B43 are installed on the upper and lower sides of the mounting frame 4 respectively. The electric telescopic rods A42 and B43 clamp the sides of the screen surface 1.

[0035] When there is a blockage in the screen hole 11, the electric telescopic rods A42 and B43 no longer clamp the side away from the screen surface 1. The screen surface 1 is supported in the mounting frame 4 by the elastic element 41. The rotating roller 2 causes the adjusting hole protrusion 21 to lift the blockage. At this time, the screen surface 1 is buffered by the elastic element 41, which avoids the adjusting hole protrusion 21 from excessively and rigidly pressing against the blockage and causing damage to the screen surface 1. This solves the problem that the screen is easily excessively and rigidly lifted during the lifting process of the fixed rod, which leads to damage.

[0036] The two mounting frames 4 are fixed with support feet 34 at both ends of the bottom. The support feet 34 are used to fix the frame to the construction ground.

[0037] The mounting frame 4 is equipped with a vibrator 7 that provides vibration. When the screen holes 11 of the screen surface 1 are being screened normally, the electric telescopic rods A42 and B43 clamp the side of the screen surface 1 in opposite directions, so that the screen surface 1 is in a rigid support state. When it is necessary to clear the blockage, the electric telescopic rods A42 and B43 move away from the side of the screen surface 1 and no longer clamp it. The screen surface 1 is supported in the mounting frame 4 by the elastic element 41. At this time, the screen surface 1 is in a flexible damping support state.

[0038] This application discloses a device for cleaning debris from the screen surface of a vibrating screen, comprising:

[0039] The negative pressure generating component 5 is composed of the main body of the vacuum cleaner. The negative pressure port of the negative pressure generating component 5 is connected to a flexible pipe A51, which is connected to a rigid pipe 52. The rigid pipe 52 is connected to a flexible pipe B53. There is a screen surface 1 below the opening of the flexible pipe B53. The two sides of the screen surface 1 are installed in the mounting frame 4. The bottom of the mounting frame 4 is fixed with support feet 34.

[0040] It also includes a support assembly 6 for supporting the rigid pipe 52; the support assembly 6 includes a support groove 61 that accommodates the rigid pipe 52 in a recessed state, and a retractable threaded telescopic rod 62 is fixed at the bottom of the support groove 61. The bottom of the threaded telescopic rod 62 is installed in a bearing D63, and the threaded telescopic rod 62 is rotatable in the bearing D63.

[0041] A clamping block 64 is installed inside the support groove 61. An adjusting bolt 65 is screwed onto the support groove 61 at the clamping block 64, and a rotating adjusting wheel 66 is fixed to the adjusting bolt 65. A bearing E67 is fixed on the clamping block 64, and the adjusting bolt 65 is installed with the bearing E67. The adjusting bolt 65 is rotatably installed with the clamping block 64 through the bearing E67. The adjusting bolt 65 is screwed into the threaded through hole on the support groove 61, driving the clamping block 64 to clamp the rigid pipe 52 against the support groove 61.

[0042] The negative pressure generating component 5 generates negative pressure, and the flexible pipe B53 bends to suck up and clean the debris on the screen surface 1. After cleaning, the support groove 61 rotates in the bearing D63, taking the flexible pipe A51, rigid pipe 52 and flexible pipe B53 with it to the side space of the screen surface 1, and no longer on the screen surface 1.

[0043] This application discloses a method for controlling the screening of sand and gravel using a vibrating screen, comprising:

[0044] The mounting frame 4 is fixed to the construction ground by the support feet 34. The electric telescopic rods A42 and B43 clamp the side of the screen surface 1, so that the screen surface 1 is rigidly supported in the mounting frame 4.

[0045] The rolling rod 2 rolls below the screen surface 1, so that when the different width adjustment hole protrusions 21 correspond to the screen hole 11, the size of the screen hole 11 is changed.

[0046] The vibrator 7 on the side of the mounting frame 4 vibrates to separate sand and gravel aggregates of different particle sizes from the sand and gravel on the screen surface 1.

Claims

1. A clog-resistant screening screen structure for screening sand and gravel, characterized in that, include: A sieve surface (1) with sieve holes (11); Rolling rod (2), the axial outer surface of the rolling rod (2) has an adjustment hole protrusion (21), the rolling rod (2) corresponds to the sieve holes (11) distributed in the same row longitudinally on the sieve surface (1); It also includes a mounting frame (4) with mounting grooves, and the left and right sides of the screen surface (1) are mounted in the mounting grooves of the mounting frame (4) through elastic members (41) that can undergo elastic deformation; One end of the rolling rod (2) is rotatably mounted on the bearing A (31). The bearing A (31) is mounted on the support plate A (32) through the bearing seat. The two ends of the support plate A (32) are fixedly connected to telescopic members A (33), and the telescopic members A (33) are fixedly connected to support feet (34). The other end of the rolling rod (2) is rotatably mounted on the bearing B (35). The bearing B (35) is mounted on the support plate B (36) through the bearing seat. A rotary motor (37) is mounted on the support plate B (36). The rotary motor (37) drives the rolling rod (2) to rotate on the bearing A (31) and the bearing B (35).

2. The anti-clogging screening screen structure for screening sand and gravel as described in claim 1, characterized in that: The elastic element (41) is an elastic rubber block.

3. The anti-clogging screening screen structure for screening sand and gravel as described in claim 1, characterized in that: The mounting frame (4) is equipped with electric telescopic rods A (42) and B (43) on the top and bottom respectively. Electric telescopic rods A (42) and B (43) clamp the side of the screen surface (1) in opposite directions.

4. The anti-clogging screening screen structure for screening sand and gravel as described in claim 1, characterized in that: The two mounting frames (4) are fixed with support feet (34) at both ends of the bottom. The support feet (34) are used to fix the frame to the construction ground.

5. The anti-clogging screening screen structure for screening sand and gravel as described in claim 1, characterized in that: A vibrator (7) that provides vibration is mounted on the side of the mounting frame (4).

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