CN213996664U - External eccentric hammer type vibrating screen - Google Patents

Abstract

The utility model discloses an external eccentric hammer type vibrating screen, including box, vibration mechanism and motor, vibration mechanism includes a protection section of thick bamboo, two outer bearing frames, two inner bearing frames, transmission shaft and eccentric hammer, and two inner bearing frames are fixed respectively two the outer bearing frame in, wear out to the box outside from two mounting holes respectively at the both ends of transmission shaft, the both ends fixed mounting of transmission shaft has eccentric hammer, eccentric hammer be located the box outside. Because the vibration mechanism adopts the structure form that the outer bearing seat and the inner bearing seat are sleeved, the mounting precision and the coaxiality of the protective cylinder are reduced, and the mounting of the vibration mechanism is greatly facilitated; the first-stage flange and the second-stage flange are arranged on the outer bearing seat, so that the mounting with the box body and the inner bearing seat is facilitated; because the surface of the semicircular hammer body of the eccentric hammer is provided with the counterweight mounting screw hole, the counterweight can be mounted on the eccentric hammer according to the requirement so as to adjust the vibration amplitude.

Description

External eccentric hammer type vibrating screen

Technical Field

The utility model relates to a shale shaker specifically relates to a shale shaker that screening building stones was used.

Background

In the existing vibrating screen, two ends of a protective cylinder are directly welded with a bearing seat, the protective cylinder is easy to deform in the welding process, and the machining precision requirement and the installation requirement are high in order to prevent the deformation of the protective cylinder, so that the installation working efficiency is not high; the other vibrating screen adopts a vibrating structure of an eccentric shaft, so that the maintenance is inconvenient; the other vibrating mechanism adopts a built-in vibrating screen, and the eccentric wheel is positioned in the protective cylinder, so that the defect of inconvenient maintenance is also caused; because the eccentric block in the vibrating mechanism is positioned in the sieve box, the vibrating mechanism has the defect of inconvenient installation and maintenance. For example, the patent document with publication number CN102814274A is disclosed by the national intellectual property office in 2012, 12 months and 12 days, and the invention provides a novel wide screen surface self-synchronizing vibrating screen. It changes the original long exciting motor with four bearings on a long shaft into a general short anti-vibration driving motor installed on the middle supporting wall plate (or middle supporting truss beam) of the screen box, and it is composed of the eccentric exciting blocks installed on the side plates on both sides of the screen box through the flexible connection (or viscous coupling) of the jack type. For the screen surface structure, the original integral large screen is changed into two narrow sub-block screens, one side of each narrow sub-block screen is connected with a fixed hook edge on a middle supporting wallboard (or a middle supporting truss girder) in an inserting way, and the other side of each narrow sub-block screen is connected with a movable hook edge on a side plate of a screen box in parallel through bolts. The vibration mode of the screen box can be designed and determined according to an inertial vibrating screen force center theory and an unequal mass-diameter product following self-synchronization and synchronization state stability theory, so that the screen box can vibrate in different track vibration modes.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide an external eccentric hammer type vibrating screen which is convenient to install and maintain a vibrating mechanism.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an external eccentric hammer type vibrating screen, includes box, vibration mechanism and motor, vibration mechanism includes a protection section of thick bamboo, two outer bearing frames, two inner bearing frames, transmission shaft and eccentric hammer, two outer bearing frames weld with the both ends of a protection section of thick bamboo respectively, all be equipped with the mounting hole of mutual correspondence on the both sides wall of box, a protection section of thick bamboo be located the box and with the mounting hole intercommunication to through two outer bearing frames respectively with the interior wall connection of the both sides of box, two inner bearing frames are fixed respectively two the outer bearing frames in, the transmission shaft is located a protection section of thick bamboo and installs in two inner bearing frames through the bearing, the both ends of transmission shaft are worn out to the box outside from two mounting holes respectively, the both ends fixed mounting of transmission shaft has eccentric hammer, eccentric hammer be located the box outside, the motor is used for driving the transmission shaft to rotate.

Furthermore, a first-stage flange is arranged on the outer bearing seat, a flange plate is arranged on the inner bearing seat, and the flange plate is connected with the first-stage flange through bolts.

Furthermore, the outer bearing seat is provided with a second-stage flange, and the second-stage flange is fixedly connected with the inner wall of the box body through bolts.

Further, be equipped with the one-level bank of screens in the box, the tiling is fixed with the one-level screen cloth on the one-level bank of screens.

Further, the below that just is located the one-level screen cloth in the box is equipped with the second grade bank of screens, the tiling is fixed with the second grade screen cloth on the second grade bank of screens.

Furthermore, the box body is supported on the supporting frame through an elastic component.

Furthermore, the eccentric hammer comprises an installation sleeve and a semicircular hammer body, wherein the installation sleeve is positioned in the middle of the plane side of the semicircular hammer body and is integrally formed with the semicircular hammer body.

Furthermore, a counterweight mounting screw hole is formed in the surface of the semicircular hammer body of the eccentric hammer.

Furthermore, the counterweight mounting screw holes are two.

The beneficial effects of the utility model reside in that:

because the vibration mechanism adopts the structure form that the outer bearing seat and the inner bearing seat are sleeved, the mounting precision and the coaxiality of the protective cylinder are reduced, the mounting of the vibration mechanism is greatly facilitated, and the mounting efficiency is improved;

the first-stage flange and the second-stage flange are arranged on the outer bearing seat, so that the mounting with the box body and the inner bearing seat is facilitated;

because the surface of the semicircular hammer body of the eccentric hammer is provided with the counterweight mounting screw hole, the counterweight can be mounted on the eccentric hammer according to the requirement so as to adjust the vibration amplitude.

Because the eccentric hammer is arranged outside the box body, an external mounting structure is adopted, and the maintenance of the vibration mechanism is convenient.

Drawings

The invention will be further explained with the aid of the accompanying drawings, in which, however, the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, without inventive step, further drawings can be obtained in accordance with the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an enlarged view of the vibration mechanism shown in FIG. 2;

FIG. 4 is a schematic view of the outer bearing housing of FIG. 3;

FIG. 5 is a schematic view of the inner bearing housing of FIG. 3;

fig. 6 is a schematic structural view of the eccentric weight shown in fig. 3.

In the figure: 1. a box body; 2. a vibration mechanism; 3. a motor; 4. a support frame; 5. An elastic component; 6. a first stage sieve frame; 7. a first-stage screen; 8. a secondary sieve frame; 9. a secondary screen; 10. a protective cylinder; 11. an outer bearing seat; 12. an inner bearing seat; 13. an eccentric weight; 14. a driving wheel; 15. a drive shaft; 16. mounting holes; 17. a primary flange; 18. a secondary flange; 19. mounting holes; 20. mounting holes; 21. a flange plate; 22. mounting holes; 23. installing a sleeve; 24. a semicircular hammer body; 25. the balance weight is provided with a screw hole.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the external eccentric hammer type vibrating screen comprises a box body 1, a vibrating mechanism 2, a motor 3 and a support frame 4, wherein the box body 1 is supported on the support frame 4 through an elastic component 5. A first-stage sieve frame 6 is arranged in the box body 1, and a first-stage screen 7 is flatly laid and fixed on the first-stage sieve frame 6. The inside of box 1 and the below that is located one-level screen cloth 7 are equipped with second grade bank of screens 8, the tiling is fixed with second grade screen cloth 9 on the second grade bank of screens 8.

As shown in fig. 2 and 3, the vibration mechanism 2 includes a protective cylinder 10, two outer bearing seats 11, two inner bearing seats 12, a transmission shaft 15 and an eccentric weight 13, the two outer bearing seats 11 are respectively welded to two ends of the protective cylinder 10, two side walls of the box 1 are respectively provided with mounting holes 16 corresponding to each other, the protective cylinder 10 is located in the box 1 and communicated with the mounting holes 16, and is respectively connected to inner walls of two sides of the box 1 through the two outer bearing seats 11, the two inner bearing seats 12 are respectively fixed in the two outer bearing seats 11, the transmission shaft 15 is located in the protective cylinder 10 and is mounted in the two inner bearing seats 12 through a bearing, two ends of the transmission shaft 15 respectively penetrate out of the box 1 from the two mounting holes 16, two ends of the transmission shaft 15 are fixedly mounted with the eccentric weight 13, the eccentric weight 13 is located outside the box 1, the motor 3 is used for driving a transmission wheel 14 on the transmission shaft 15 to rotate, thereby driving the eccentric weight 13 to rotate and realizing the vibration of the box body. Because the vibration mechanism adopts the structure form that the outer bearing seat and the inner bearing seat are sleeved, the mounting precision and the coaxiality of the protective cylinder are reduced, the mounting of the vibration mechanism is greatly facilitated, and the mounting efficiency is improved.

As shown in fig. 4 and 5, a first-stage flange 17 and a second-stage flange 18 are arranged on the outer bearing seat 11, a plurality of mounting holes 19 are distributed on the first-stage flange 17, a plurality of mounting holes 20 are distributed on the second-stage flange 18, a flange 21 is arranged on the inner bearing seat, and a mounting hole 22 on the flange 21 is connected with the mounting hole 19 on the first-stage flange 17 through a bolt. The mounting hole 20 on the secondary flange 18 is fixedly connected with the inner wall of the box body 1 through a bolt. The first-stage flange and the second-stage flange are arranged on the outer bearing seat, so that the mounting with the box body and the inner bearing seat is facilitated.

As shown in fig. 6, the eccentric weight 13 includes a mounting sleeve 23 and a semicircular weight body 24, and the mounting sleeve 23 is located at the middle of the plane side of the semicircular weight body 24 and is integrally formed with the semicircular weight body 24. The surface of the semicircular hammer body 24 of the eccentric hammer 13 is provided with two counterweight mounting screw holes 25, and the number of the counterweight mounting screw holes 25 is two. Because the surface of the semicircular hammer body of the eccentric hammer is provided with the counterweight mounting screw hole, the counterweight can be mounted on the eccentric hammer according to the requirement so as to adjust the vibration amplitude.

Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (9)

1. The utility model provides an external eccentric hammer type vibrating screen, includes box, vibration mechanism and motor, its characterized in that: the vibration mechanism includes a protection section of thick bamboo, two outer bearing frames, two inner bearing frames, transmission shaft and eccentric hammer, two outer bearing frames weld with the both ends of a protection section of thick bamboo respectively, all be equipped with the mounting hole of mutual correspondence on the both sides wall of box, the protection section of thick bamboo be located the box and with the mounting hole intercommunication to through two outer bearing frames respectively with the interior wall connection of the both sides of box, two inner bearing frames are fixed respectively two the outer bearing frame in, the transmission shaft is located a protection section of thick bamboo and installs in two inner bearing frames through the bearing, wear out to the box outside from two mounting holes respectively at the both ends of transmission shaft, the both ends fixed mounting of transmission shaft has eccentric hammer, eccentric hammer be located the box outside, the motor is used for driving the transmission shaft and rotates.

2. The external eccentric hammer shaker of claim 1, wherein: the outer bearing seat is provided with a first-stage flange, the inner bearing seat is provided with a flange plate, and the flange plate is connected with the first-stage flange through bolts.

3. The external eccentric hammer shaker of claim 2, wherein: and a second-stage flange is arranged on the outer bearing seat and fixedly connected with the inner wall of the box body through bolts.

4. The external eccentric hammer shaker of claim 3, wherein: the box is internally provided with a first-stage sieve frame, and a first-stage screen is flatly laid and fixed on the first-stage sieve frame.

5. The external eccentric hammer shaker of claim 4, wherein: and a second-stage screen frame is arranged below the first-stage screen in the box body, and a second-stage screen is tiled and fixed on the second-stage screen frame.

6. The external eccentric hammer shaker of claim 5, wherein: the box body is supported on the supporting frame through an elastic component.

7. The external eccentric hammer shaker of claim 6, wherein: the eccentric hammer comprises an installation sleeve and a semicircular hammer body, wherein the installation sleeve is positioned in the middle of the plane side of the semicircular hammer body and is integrally formed with the semicircular hammer body.

8. The external eccentric hammer shaker of claim 7, wherein: and a counterweight mounting screw hole is formed in the surface of the semicircular hammer body of the eccentric hammer.

9. The external eccentric hammer shaker of claim 8, wherein: and two counterweight mounting screw holes are formed.

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