CN207086296U - A kind of screen cleaner of novel vibrating screen - Google Patents

Abstract

The utility model discloses a novel vibrating screen cleaner, which is characterized in that it comprises a motor, a transmission shaft and a turntable, the transmission shaft is horizontally installed under the screen of the vibrating screen, and the two ends of the transmission shaft are fixed on the On the frame of the vibrating screen, the transmission shaft is a hollow structure, and the upper and lower sides of the transmission shaft are respectively provided with strip-shaped guide grooves in the radial direction, and the guide grooves penetrate into the inside of the transmission shaft; the output of the motor The shaft is connected to one end of the transmission shaft through a transmission belt, and the other end of the transmission shaft is provided with a cylinder, and the end of the piston rod of the cylinder is fixedly equipped with a bearing, and the bearing can reciprocate inside the transmission shaft; There is a through hole, the turntable is sleeved in the transmission shaft through the through hole, the inner wall of the through hole is fixedly connected with the outer ring of the bearing through a connecting block, and the connecting block is located in the guide groove; the edge of the turntable is evenly installed with Impact the ball. The utility model can realize the effect of automatically cleaning the meshes of the vibrating screen.

Description

A new type of vibrating screen cleaner

technical field

The utility model relates to the technical field of sand making equipment, in particular to a screen cleaner for a novel vibrating screen.

Background technique

High-rise buildings are rising all around us, and the speed is amazing. In recent years, construction of buildings and roads can be seen everywhere in the metropolis, with modern reinforced concrete and roads everywhere, all of which are inseparable from the sand and gravel used for construction projects. Sand and gravel play the role of aggregate in construction, but with the widespread use of ready-made concrete and mortar, natural sand resources are becoming increasingly scarce, and natural sand must be made up by artificial sand. Sand screening equipment is an important part of machine-made sand equipment. At present, the sand screening equipment of sand making equipment on the market is mainly vibrating screen, which has the advantages of high screening efficiency, easy screen replacement, long material movement track, and high utilization rate of the screen surface.

The working principle of the vibrating screen is that when the vibrating screen is working, the motion track of any point on the screen box is a straight line, that is, when the eccentric block rotates, only one force is generated in one aspect, and there is no force couple, then the vibrating screen only reciprocates along this direction plane straight line. Use the heavy hammer (unbalanced hammer) installed on the upper and lower sides of the motor shaft to convert the rotational motion of the motor into a three-dimensional motion of horizontal, vertical and inclined, and then transfer this motion to the screen surface to make the material expand gradually on the screen surface. Open line movement, so this type of vibrating screen is called rotary vibrating screen.

However, in the actual use process, due to the different moisture content of raw materials, as the vibrating screen is used for a long time, the mesh holes on the vibrating screen will gradually be blocked by powder bonding or granular objects, resulting in Vibrating screens are inefficient and produce sand with varying gradations. At present, it is generally used to manually clean the screen regularly, which not only increases labor intensity, but also affects production efficiency. At this time, it is necessary to design an automatic sieve cleaner to automatically clean the powder or granular objects that are clogged in the mesh holes.

Utility model content

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

A new type of vibrating screen cleaner, including a motor, a transmission shaft and a turntable. The transmission shaft is a hollow structure, and the upper and lower sides of the transmission shaft are respectively provided with strip-shaped guide grooves in the radial direction, and the guide grooves penetrate into the inside of the transmission shaft; the output shaft of the motor passes through the transmission belt and one end of the transmission shaft. The other end of the transmission shaft is provided with a cylinder, and the end of the piston rod of the cylinder is fixedly equipped with a bearing, and the bearing can reciprocate inside the transmission shaft; a through hole is provided in the middle of the turntable, and the turntable passes through the through hole Set in the transmission shaft, the inner wall of the through hole is fixedly connected with the outer ring of the bearing through a connection block, and the connection block is located in the guide groove; impact balls are uniformly installed on the edge of the turntable.

The general idea of the utility model is: by installing a turntable under the screen of the vibrating screen, the impact ball on the turntable will continuously hit the screen, and the granular objects and bonding powder in the mesh holes will be hit by the screen. It can be separated from the hole, so as to achieve the effect of automatic cleaning of the screen.

In addition, the utility model also provides the following subsidiary technical solutions:

Further, the impact ball is connected to the turntable through a chain. In this way, when there is no need to clean the screen, the turntable does not work, and the impact ball is hung on the turntable under the action of its own weight, so as to avoid the long-term vibration of the vibrating screen from affecting the service life of the automatic sieve cleaner. When the turntable rotates, the impact ball Under the action of centrifugal force, it flies up and hits the screen.

Further, when the impact ball collides with the screen, the contact area of the impact ball is 1/4-1/2 of the spherical surface. The applicant has verified through multiple tests that when the impact ball hits the screen with 1/4-1/2 of the spherical surface in contact with the screen, the effect of cleaning the blockage of the screen is the best; the contact area between the impact ball and the screen is too small , the effect of cleaning the blockage of the screen cannot be achieved, and the contact area between the impact ball and the screen is too large, which will have an adverse effect on the screen during the beating process.

Further, a high-pressure gas nozzle is provided on the front end of the piston rod, the gas outlet of the high-pressure gas nozzle points to the screen, and the high-pressure gas nozzle is connected to an external gas supply device through a pipeline. The high-pressure air nozzle can blow air to the screen when the impact ball hits the screen, so as to speed up the cleaning speed of powder and granular objects on the holes and quickly break away from the screen to avoid secondary falling into the holes.

Further, the number of said impact balls is 2-6.

Further, a speed regulating valve is installed on the interface of the cylinder. The movement speed of the cylinder piston rod is adjusted through the speed regulating valve, and the turntable moves back and forth at a constant speed at a specified speed.

Further, the transmission belt is a flat belt, a V-belt or a toothed belt.

Further, the impact ball is a rubber ball or a steel ball.

Compared with the prior art, the beneficial effects of the utility model are:

The structure design of the utility model is simple and reasonable, and it is easy to process and manufacture. The vibrating screen can be cleaned by starting the automatic screen cleaner without stopping the machine, which does not affect the production efficiency and reduces the labor intensity of workers; At the same time, a cylinder is designed on one side of the transmission shaft, and the piston rod of the cylinder drives the turntable to perform radial reciprocating motion at a uniform speed in the guide groove of the transmission shaft, thereby realizing cleaning along the radial direction of the transmission shaft, making the utility model The cleaning effect of the automatic sieve cleaner is optimal.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the utility model embodiment 1;

Fig. 3 is the structural schematic diagram of the transmission shaft section of the utility model embodiment 1;

The names and serial numbers of parts in the figure:

Motor 1, transmission shaft 2, turntable 3, screen 4, bearing seat 5, guide groove 6, transmission belt 7, cylinder 8, piston rod 9, bearing 10, through hole 11, outer ring 12, connecting block 13, impact ball 14 , Chain 15, speed control valve 16, high pressure gas nozzle 17, pipeline 18, air supply equipment 19.

Detailed ways

The utility model is described below in conjunction with the accompanying drawings and embodiments, and the following embodiments are explained with the best effect of the utility model, but these embodiments are not limitations of the utility model.

Example 1:

As shown in Figure 1-2, a new vibrating screen cleaner includes a motor 1, a transmission shaft 2 and a turntable 3, the transmission shaft 2 is installed horizontally under the screen 4 of the vibrating screen, and the two ends of the transmission shaft 2 pass through The bearing seat 5 is fixed on the frame of the vibrating screen (not shown in the figure), the transmission shaft 2 is a hollow structure, and its upper and lower sides are respectively provided with strip-shaped guide grooves 6 in the radial direction, and the guide grooves penetrate to the transmission shaft. 2; the output shaft of the motor 1 is connected to one end of the transmission shaft 2 through the transmission belt 7, the other end of the transmission shaft 2 is provided with a cylinder 8, and the end of the piston rod 9 of the cylinder 8 is fixedly equipped with a bearing 10, and the bearing 10 can be mounted on the transmission shaft 2. The interior reciprocates; there is a through hole 11 in the middle of the turntable 3, and the turntable 3 is sleeved in the transmission shaft 2 through the through hole 11. The block 13 is located in the guide groove 6 .

Four impact balls 14 are evenly installed on the edge of the turntable 3, and the impact balls 14 are connected with the turntable 3 through a chain 15; 12 of a 1/4 sphere.

The front end of the piston rod 9 is provided with a high-pressure air nozzle 17, and the air outlet of the high-pressure air nozzle 17 points to the screen 4. The high-pressure air nozzle 17 is connected with an external air supply device 19 through a pipeline 18. The high-pressure air nozzle 17 can share the same cylinder with the cylinder 8. Set of gas supply equipment.

In this embodiment, a speed regulating valve 16 for controlling the movement speed of the piston rod 9 is installed on the interface of the cylinder 8 .

In this embodiment, the transmission belt 7 is a V-belt, and the impact ball 14 is a rubber ball.

When in use, start the motor 1, the transmission belt 7 drives the transmission shaft 2 to rotate, and the turntable 3 rotates with the transmission shaft 2 under the action of the connecting block 13, so that the impact ball 12 continuously rotates and hits the screen 4, thereby achieving the effect of cleaning the screen , the impact ball 12 ventilates to the high-pressure air nozzle 17 in the process of hitting the screen 4, and the high-pressure air nozzle 17 sprays high-pressure gas to make the powder and granular objects in the holes of the screen 4 leave the screen 4 quickly; The speed regulating valve 16 makes the piston rod 9 reciprocate at a specified speed, and the turntable 3 also reciprocates at a uniform speed along with the bearing 10 on the piston rod 9, so as to clean the screen along the radial direction of the transmission shaft 2.

Example 2:

In this embodiment, the difference from Embodiment 1 is that the number of impact balls 14 installed on the rotating disk 3 is two, and when the impact balls 14 rotate with the rotating disk 3 and fly, the impact balls 12 and the screen cloth 4 The contact area is the 1/2 spherical surface of the impact ball 12, and all the other operating principles are the same as in embodiment 1.

Example 3:

In this embodiment, the difference from Embodiment 1 is that the number of impact balls 14 installed on the rotating disk 3 is 6, and when the impact balls 14 rotate with the rotating disk 3 and fly, the impact balls 12 and the screen cloth 4 The contact area is 1/3 spherical surface of impact ball 12, and impact ball 14 selects steel ball for use, and all the other operating principles are identical with embodiment 1.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the utility model, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively enumerate all implementation methods here. And the obvious changes or changes derived therefrom are still within the protection scope of the present utility model.

Claims (8)

1. The screen cleaner of a novel vibrating screen is characterized in that: it comprises a motor (1), a drive shaft (2) and a rotating disk (3), and the drive shaft (2) is horizontally installed on the screen cloth (4) of the vibrating screen ) below, the two ends of the transmission shaft (2) are fixed on the frame of the vibrating screen through the bearing housing (5), the transmission shaft (2) is a hollow structure, the upper and lower sides of the transmission shaft (2) are respectively provided A strip-shaped guide groove (6) in the radial direction, the guide groove (6) penetrates into the inside of the drive shaft (2); the output shaft of the motor (1) passes through the drive belt (7) and the drive shaft (2) One end is connected, the other end of the transmission shaft (2) is provided with a cylinder (8), and the end of the piston rod (9) of the cylinder (8) is fixedly equipped with a bearing (10), and the bearing (10) can be used in the transmission The inside of the shaft (2) reciprocates; the middle of the turntable (3) is provided with a through hole (11), the turntable (3) is sleeved in the transmission shaft (2) through the through hole (11), and the through hole (11) The inner wall and the outer ring (12) of the bearing (10) are fixedly connected by a connecting block (13), and the connecting block (13) is located in the guide groove (6); the edge of the turntable (3) is evenly installed with Shock Ball (14). 2. A novel vibrating screen cleaner according to claim 1, characterized in that: the impact ball (14) is connected to the turntable (3) by a chain (15). 3. The screen cleaner of a novel vibrating screen according to claim 1 or 2, characterized in that: when the impact ball (14) collides with the screen (4), the contact area of the impact ball (14) is 1 /4-1/2 spherical surface. 4. The sieve cleaner of a new type of vibrating screen according to claim 1, characterized in that: the front end of the piston rod (9) is provided with a high-pressure air nozzle (17), and the high-pressure air nozzle (17) The air outlet points to the screen cloth (4), and the high-pressure air nozzle (17) is connected with the external air supply equipment (19) through the pipeline (18). 5. A novel vibrating screen cleaner according to claim 1, characterized in that: the number of said impact balls (14) is 2-6. 6. A novel vibrating screen cleaner according to claim 1, characterized in that: a speed regulating valve (16) is installed on the interface of the cylinder (8). 7. A novel vibrating screen cleaner according to claim 1, characterized in that: the transmission belt (7) is a flat belt, a V-belt or a toothed belt. 8. A novel vibrating screen cleaner according to claim 1, characterized in that: the impact ball (14) is a rubber ball or a steel ball.