Asphalt concrete raw material screening machine

Abstract

The utility model relates to the technical field of concrete raw material screening, and discloses an asphalt concrete raw material screening machine which comprises a bottom plate, a supporting plate and a screening box, and a screening plate is fixedly installed on the inner side wall of the screening box. According to the asphalt concrete raw material screening machine, the square shaking assemblies are arranged, after the square shaking assemblies are used, eccentric blocks rotate, corresponding screening plates are promoted to shake in the horizontal direction, first supporting rods can rotate front and back, and second supporting rods can rotate left and right, so that the screening plates move front, back, left and right in an arc track mode; the movement of the arc track enables the screening plate to vibrate up and down, then asphalt concrete raw materials on the screening plate are thrown into the air, meanwhile, the front-back and left-right movement of the screening plate reduces the situation that the asphalt concrete raw materials are concentrated in one area, the filtering efficiency of the screening plate is improved, and the screening effect of the asphalt concrete raw materials is guaranteed. And the vibration amplitude is also prevented from being influenced by long-time matched vibration of a spring.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete raw material screening, in particular to an asphalt concrete raw material screening machine. Background Art

[0002] Asphalt concrete, commonly known as asphalt concrete, is a mixture of artificially selected mineral materials with a certain graded composition, such as crushed stone or crushed gravel, stone chips or sand and mineral powder, and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. When processing the asphalt materials, it is necessary to screen the concrete raw materials to reduce the presence of impurities and larger particles in the concrete and improve the synthetic quality of the concrete.

[0003] After searching, Chinese patent CN220295186U was found and announced a screening machine for asphalt concrete raw materials. A driving motor is set to drive the rotating disk to rotate, and the rotating disk drives the control shaft to move in a circle, so that the control shaft and the slider drive the extension block to move back and forth left and right, so that the connecting plate drives the two screening nets to perform shaking screening operations, so that the asphalt concrete raw material particles are effectively separated and distinguished, and the screening machine is effectively supported by the coordinated connection between the fixed seat and the connecting spring and the coordinated support of the supporting spring and the supporting seat, thereby effectively improving the screening effect of the asphalt concrete raw materials. It can be seen that this patent realizes left and right shaking for screening, and the asphalt concrete raw materials are not thrown into the air, so that the asphalt concrete raw materials below will still cause certain obstacles to the asphalt concrete raw materials above, affecting the screening efficiency. The spring is combined with vibration screening. The spring elastic force will weaken under long-term support, resulting in a corresponding weakening of the vibration amplitude, which in turn affects the normal screening work. For this reason, an asphalt concrete raw material screening machine is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an asphalt concrete raw material screening machine, which has the advantage of high screening efficiency.

[0005] In order to achieve the above-mentioned purpose of high screening efficiency, the utility model provides the following technical solutions: an asphalt concrete raw material screening machine, comprising a bottom plate, a support plate and a screening box, the inner side wall of the screening box is fixedly installed with a screening plate, and the bottom plate, the support plate and the screening box are provided with a four-way shaking component for shaking the asphalt concrete raw material above the screening plate back and forth and left and right;

[0006] The four-way shaking assembly includes a first support rod, a second support rod, a stop block, a motor, and an eccentric block. The first support rod is hinged between the opposite sides of the bottom plate and the support plate. The first support rod is arranged front and back. The second support rod is hinged between the opposite sides of the support plate and the screening box. The second support rod is arranged left and right. The stop block is fixedly installed on the tops of the bottom plate and the support plate. The motor is fixedly installed at the bottom of the screening box. The eccentric block is fixedly installed on the output shaft of the motor.

[0007] Further, the number of the first support rods and the second support rods is four each. The first support rods and the second support rods are of equal size. The first support rods are parallel to each other. The second support rods are parallel to each other.

[0008] Further, the cross-sectional shape of the stop block is a right trapezoid. The first support rod and the second support rod are both in contact with the stop block. The stop block on the bottom plate is arranged horizontally. The stop block on the support plate is arranged vertically.

[0009] Further, the shape of the eccentric block is a sector. The eccentric block is installed on the output shaft of the motor in a horizontal manner.

[0010] Further, a discharge assembly is arranged on the side wall of the screening box. The discharge assembly includes a discharge hole and a discharge plate. The discharge hole is opened on the side wall of the screening box. The discharge plate is inserted into the discharge hole and is in contact with the side wall of the screening box.

[0011] Further, an installation screw threaded to the side wall of the screening box passes through the discharge plate. A handle is fixedly installed on the side wall of the discharge plate. The shape of the handle is a U-shaped.

[0012] Compared with the prior art, the present utility model provides an asphalt concrete raw material screening machine, which has the following beneficial effects:

[0013] In this asphalt concrete raw material screening machine, by setting the four-way shaking assembly, after the eccentric block rotates during the use of the four-way shaking assembly, it causes the corresponding sieve plate to shake in the horizontal direction. The first support rod can rotate back and forth, and the second support rod can rotate left and right, so that the sieve plate moves back and forth and left and right in the form of an arc trajectory. The movement of the arc trajectory makes the sieve plate vibrate with undulations, thereby enabling the asphalt concrete raw materials on the sieve plate to be thrown into the air. At the same time, the back-and-forth and left-and-right movement of the sieve plate reduces the concentration of asphalt concrete raw materials in one area, improves the filtering efficiency of the sieve plate, ensures the screening effect of the asphalt concrete raw materials, and also avoids the influence of the vibration amplitude due to the long-term cooperation of the spring with the vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front three-dimensional schematic diagram of the structure of the present utility model;

[0015] Figure 2 This is a three-dimensional side view of the structure of the present utility model;

[0016] Figure 3 This is a three-dimensional front sectional view of the structure of the present utility model.

[0017] In the figure: 1 bottom plate, 2 support plate, 3 screening box, 4 sieve plate, 5 four-sided shaking assembly, 51 first support rod, 52 second support rod, 53 stopper, 54 motor, 55 eccentric block, 6 discharging assembly, 61 discharging hole, 62 discharging plate, 7 handle. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figure 1-3 , an asphalt concrete raw material screening machine, including a bottom plate 1, a support plate 2 and a screening box 3. The inner side wall of the screening box 3 is fixedly installed with a sieve plate 4, and sieve holes are opened on the sieve plate 4 for screening asphalt concrete raw materials by size.

[0020] Among them, a discharging assembly 6 is provided on the side wall of the screening box 3. The discharging assembly 6 includes a discharging hole 61 and a discharging plate 62. The discharging hole 61 is opened on the side wall of the screening box 3 for discharging the screened asphalt concrete raw materials. The discharging plate 62 is inserted into the discharging hole 61 and contacts the side wall of the screening box 3 for blocking the asphalt concrete raw materials during the screening process. The number of the discharging holes 61 and the discharging plates 62 is two each. The upper discharging hole 61 discharges large asphalt concrete raw materials, and the lower discharging hole 61 discharges small asphalt concrete raw materials. Installation screws threadedly connected to the side wall of the screening box 3 pass through the discharging plate 62 for installing and disassembling the discharging plate 62. A handle 7 is fixedly installed on the side wall of the discharging plate 62 for facilitating the removal of the discharging plate 62. The shape of the handle 7 is U-shaped.

[0021] Please refer to Figure 1-3A four-way shaking assembly 5 for shaking the asphalt concrete raw material above the screening plate 4 back and forth and left and right is arranged on the bottom plate 1, the support plate 2 and the screening box 3. The four-way shaking assembly 5 includes a first support rod 51, a second support rod 52, a stopper 53, a motor 54 and an eccentric block 55. The first support rod 51 is hinged between the bottom plate 1 and the opposite side of the support plate 2. The first support rod 51 is arranged front and back, and the first support rod 51 can rotate back and forth. The second support rod 52 is hinged between the support plate 2 and the opposite side of the screening box 3. The second support rod 52 is arranged left and right, and the second support rod 52 can rotate left and right. The number of the first support rod 51 and the second support rod 52 is four, and the size of the first support rod 51 and the second support rod 52 is equal. The first support rods 51 are parallel to each other, and the second support rods 52 are parallel to each other. Under the front and back rotation of the first support rod 51 and the left and right rotation of the second support rod 52, the asphalt concrete raw material can be better screened.

[0022] In addition, the block 53 is fixedly mounted on the top of the base plate 1 and the support plate 2. The cross-sectional shape of the block 53 is a right-angled trapezoid. The first support rod 51 and the second support rod 52 are both in contact with the block 53. When the first support rod 51 and the second support rod 52 hit the block 53, they cannot continue to rotate and can only rotate in the opposite direction to reciprocately screen the asphalt concrete raw materials. The block 53 on the base plate 1 is arranged horizontally, and the block 53 on the support plate 2 is arranged longitudinally. The motor 54 is fixedly mounted on the bottom of the screening box 3, and the eccentric block 55 is fixedly mounted on the output shaft of the motor 54. When the motor 54 is started, the eccentric block 55 rotates to gradually perform the raw material screening work. The eccentric block 55 is in the shape of a fan, and the eccentric block 55 is horizontally mounted on the output shaft of the motor 54. The horizontal installation is conducive to the shaking of the screening plate 4 back and forth and left and right, thereby improving the efficiency of screening the asphalt concrete raw materials.

[0023] When the present embodiment is in use, the asphalt concrete raw material is first poured onto the screening plate 4, the motor 54 is started, the eccentric block 55 rotates, and under the blocking of the first support rod 51 and the second support rod 52 by the stop block 53, the first support rod 51 is rotated back and forth and the second support rod 52 is rotated back and forth, driving the screening plate 4 to shake back and forth and left and right in an arc trajectory, so that the asphalt concrete raw material is thrown into the air for screening. When the asphalt concrete raw material falls, the screening plate 4 is still moving, so that the positions of the asphalt concrete raw material falling and being thrown up are different, thereby improving the filtration efficiency. The large asphalt concrete raw material is intercepted on the screening plate 4, and the small asphalt concrete raw material falls on the inner bottom wall of the screening box 3. After the screening is completed, the mounting screws are unscrewed, the discharge plate 62 is pulled out, and the screened asphalt concrete raw material is discharged.

[0024] The beneficial effects of the above embodiments are:

[0025] The asphalt concrete raw material screening machine is provided with a four-way shaking component 5. The rear eccentric block 55 of the four-way shaking component 5 is used to rotate, so that the corresponding screening plate 4 is caused to shake in the horizontal direction. The first support rod 51 can rotate forward and backward, and the second support rod 52 can rotate left and right, so that the screening plate 4 can move forward and backward and left and right in a circular arc trajectory. The movement of the circular arc trajectory makes the screening plate 4 vibrate up and down, so that the asphalt concrete raw materials on the screening plate 4 can be thrown into the air. At the same time, the forward and backward and left and right movements of the screening plate 4 reduce the concentration of the asphalt concrete raw materials in one area, improve the filtering efficiency of the screening plate 4, ensure the screening effect of the asphalt concrete raw materials, and avoid the use of springs for long-term vibration to affect the vibration amplitude.

[0026] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt concrete raw material screening machine, comprising a bottom plate (1), a support plate (2) and a screening box (3), wherein a screening plate (4) is fixedly mounted on the inner side wall of the screening box (3), characterized in that: A four-way shaking assembly (5) for shaking the asphalt concrete raw materials above the sieve plate (4) back and forth, left and right is provided on the bottom plate (1), the support plate (2) and the screening box (3). The four-way shaking assembly (5) includes a first support rod (51), a second support rod (52), a stop block (53), a motor (54) and an eccentric block (55). The first support rod (51) is hinged between the opposite sides of the bottom plate (1) and the support plate (2). The first support rod (51) is arranged front and back. The second support rod (52) is hinged between the opposite sides of the support plate (2) and the screening box (3). The second support rod (52) is arranged left and right. The stop block (53) is fixedly installed on the tops of the bottom plate (1) and the support plate (2). The motor (54) is fixedly installed on the bottom of the screening box (3). The eccentric block (55) is fixedly installed on the output shaft of the motor (54).

2. The asphalt concrete raw material screening machine according to claim 1, characterized in that: The number of the first support rods (51) and the second support rods (52) is four each. The first support rods (51) and the second support rods (52) are of the same size. The first support rods (51) are parallel to each other. The second support rods (52) are parallel to each other.

3. The asphalt concrete raw material screening machine according to claim 1, characterized in that: The cross-sectional shape of the stop block (53) is a right trapezoid. The first support rod (51) and the second support rod (52) are both in contact with the stop block (53). The stop block (53) located on the bottom plate (1) is arranged horizontally. The stop block (53) located on the support plate (2) is arranged longitudinally.

4. The asphalt concrete raw material screening machine according to claim 1, characterized in that: The shape of the eccentric block (55) is a sector. The eccentric block (55) is installed on the output shaft of the motor (54) in a horizontal manner.

5. The asphalt concrete raw material screening machine according to claim 1, characterized in that: A discharge assembly (6) is provided on the side wall of the screening box (3). The discharge assembly (6) includes a discharge hole (61) and a discharge plate (62). The discharge hole (61) is opened on the side wall of the screening box (3). The discharge plate (62) is inserted into the discharge hole (61) and is in contact with the side wall of the screening box (3).

6. The asphalt concrete raw material screening machine according to claim 5, characterized in that: An installation screw threadedly connected to the side wall of the screening box (3) passes through the discharge plate (62). A handle (7) is fixedly installed on the side wall of the discharge plate (62). The shape of the handle (7) is a U-shaped.

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