CN217017338U

CN217017338U - Vibration sieve shaker

Info

Publication number: CN217017338U
Application number: CN202123297778.8U
Authority: CN
Inventors: 马峰; 王正; 傅珍; 代佳胜; 李晨; 祝崇鑫; 安强; 姜欣野
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-22
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a vibrating screen shaker which comprises a base, wherein a sound insulation box body is arranged on the base, a vibrating disc is arranged on the upper end surface of the base and is positioned in the sound insulation box body, a plurality of screen discs which are sequentially nested in the height direction are arranged on the upper end surface of the vibrating disc, and a screen disc cover is arranged on the screen disc on the topmost layer; vertical rods are arranged on the upper end face of the vibrating disc and around the screen disc, sliding sleeves are sleeved on the vertical rods, and jacking bolts are connected to the side walls of the sliding sleeves in a threaded mode; the side wall of the sliding barrel is further connected with a cross rod extending to the upper portion of the sieve tray, the end portion of the cross rod is connected with a pressing device used for pressing the sieve trays nested in sequence, and the pressing device is pressed on the sieve tray cover. The utility model can effectively reduce the noise generated in the screening process of the aggregates.

Description

Vibration sieve shaker

Technical Field

The utility model relates to the technical field of mechanical screening, in particular to a vibrating screen shaker.

Background

Aggregate is an important component of cement concrete and asphalt concrete, the size of the aggregate has a great influence on the properties of the aggregate, generally, in engineering or experiments, the aggregate needs to be mechanically screened to be grouped according to a certain particle size range, and then the aggregate in a proper aggregate distribution range is selected according to design and engineering practice. At this time, a shaker is needed, and the vibrating shaker is one of the shakers, and is widely applied to laboratories and various engineering projects and is an indispensable device.

The shaking screen machine generally comprises a swing mechanism, a jarring mechanism, a clamping mechanism and the like, wherein a motor rotates by a rotating shaft and a worm gear which are attached to a main eccentric shaft on a swing frame, so that other two eccentric shafts are driven to rotate, and the whole screen disc group is driven to swing horizontally. Meanwhile, the same motor drives another pair of worm gears to pass through a cam, and a swing frame of the sieve plate group is arranged on the ejector rod to periodically jack up and fall on the machine base by the dead weight, so that the swing frame can perform shock while swinging on the circumference of the plane.

However, the vibrating shaker generates a lot of noise during operation, the noise source is generally friction collision between aggregates, friction collision between aggregates and a sieve tray and vibration of the vibrating shaker, and the generated noise pollutes the environment. Therefore, the conventional vibrating and shaking screen machine has a problem of too much noise, and the use effect of the conventional vibrating and shaking screen machine needs to be improved, so that a vibrating and shaking screen machine for reducing the noise is urgently needed.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a vibrating screen shaker which can effectively reduce the noise generated in the screening process of aggregates.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

a vibration shaker comprises a base, wherein a sound insulation box body is arranged on the base, a vibration disc is arranged on the upper end surface of the base and is positioned in the sound insulation box body, a plurality of screen discs which are sequentially nested along the height direction are arranged on the upper end surface of the vibration disc, and a screen disc cover is arranged on the screen disc at the topmost layer; vertical rods are arranged on the upper end face of the vibrating disc and around the screen disc, sliding sleeves are sleeved on the vertical rods, and jacking bolts are connected to the side walls of the sliding sleeves in a threaded mode; the side wall of the sliding barrel is further connected with a cross rod extending to the upper portion of the sieve tray, the end portion of the cross rod is connected with a pressing device used for pressing the sieve trays nested in sequence, and the pressing device is pressed on the sieve tray cover.

Further, closing device includes pressure disk, lower pressure disk and clamp bolt, the pressure disk setting is in down on the sieve tray cover, it is located to go up the pressure disk under the pressure disk, go up the pressure disk with the horizontal pole is connected, threaded connection has vertical decurrent on the last pressure disk clamp bolt, clamp bolt is used for compressing tightly under the pressure disk.

Further, the sound insulation box body comprises a box body and sound absorption cotton attached to the inner wall of the box body.

Further, the thickness of the sound-absorbing cotton is 3 cm-5 cm.

Further, wind on the up end of vibration dish be provided with three around the sieve dish montant, three the upper end of montant is connected with the structure reinforcement.

Further, the top of each sieve tray is provided with a step matched with the bottom in size, and two adjacent sieve trays are embedded through the steps.

Further, a rubber ring is arranged on the step on each sieve tray.

Furthermore, a driving device is arranged on the base, an eccentric device connected with the vibration disc is arranged in the base, and the driving device is connected with the eccentric device.

Furthermore, a box door is arranged on the sound insulation box body.

Compared with the prior art, the utility model has at least the following beneficial effects: according to the vibrating screen shaker provided by the utility model, the sound insulation box body is arranged on the base, and the vibrating structure of the vibrating screen shaker is covered in the sound insulation box body, so that the transmission of noise during vibration is effectively blocked. In addition, in order to avoid unnecessary noise generated by looseness between adjacent screen trays during vibration, the vertical rods are arranged on the upper end face of the vibration tray and around the screen trays, the vertical rods are slidably sleeved with the sliding cylinders, the side walls of the sliding cylinders are in threaded connection with the jacking bolts, the side walls of the sliding cylinders are also connected with the cross rods extending above the screen trays, the end parts of the cross rods are connected with the pressing devices used for pressing the sequentially nested screen trays, and the pressing devices are pressed on the screen tray covers. That is to say, after a plurality of sieve trays of different sieve grades along the direction of height are nested in proper order, cover the sieve tray on the topmost screen tray with the sieve tray lid, then adjust the height of slide drum for closing device is located the sieve tray and covers, then fixed slide drum, utilize closing device to compress tightly the sieve tray that nests in proper order, reduce unnecessary vibrations between the sieve tray effectively, slowed down the noise that produces because not compressed tightly between a plurality of sieve trays when vibrating effectively.

Furthermore, the pressing device comprises an upper pressing plate, a lower pressing plate and pressing bolts, when the pressing device is used, the lower pressing plate is placed on the screen plate cover, the pressing bolts on the upper pressing plate are screwed downwards to enable the pressing bolts to downwards abut against the lower pressing plate, and then the screen plates nested in sequence are pressed tightly, unnecessary vibration among the screen plates is reduced, noise generated by the fact that the plurality of screen plates are not pressed when vibration is effectively relieved, and the pressing device is simple in structure and convenient to operate.

Furtherly, give sound insulation box includes box body and attached inhaling the sound cotton of box body inner wall, and the noise that the cotton absorption vibrations that can be fine produced of sound is inhaled in the utilization.

Furthermore, the thickness of the sound absorption cotton is designed to be 3 cm-5 cm, so that the sound can be effectively absorbed.

Furthermore, the upper ends of the three vertical rods are connected with structural reinforcements, so that the stability of the structure is ensured.

Furthermore, the top of each screen tray is provided with a step matched with the bottom in size, two adjacent screen trays are embedded through the steps, the stability of the embedded screen trays is good, unnecessary vibration between the screen trays can be effectively relieved, and then noise is relieved.

Further, be provided with the rubber circle on the step on every sieve dish, prevent that the sieve dish from being damaged after the pressurization, sieve dish is more stable simultaneously, is favorable to slowing down the production of noise.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a vibrating shaker of the present invention.

FIG. 2 is a schematic cross-sectional view of a sound isolation box of a shaker of the present invention.

Fig. 3 is a schematic cross-sectional view of a pressing device of a vibrating shaker of the present invention.

Fig. 4 is a schematic structural diagram of a sieve tray of a vibrating shaker of the present invention.

In the figure: 1-a base; 2-sound insulation box body; 201-box body; 202-sound absorbing cotton; 3-vibrating the disc; 4-a sieve tray; 401-step; 5-vertical rod; 6-a slide cylinder; 7-tightening the bolt; 8-a cross bar; 9-a pressing device; 901-upper platen; 902-lower platen; 903-hold-down bolt; 10-a sieve tray cover; 11-structural reinforcement; 12-a rubber ring; 13-drive means.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As an embodiment of the present invention, referring to fig. 1 to 4, a vibratory shaker includes a base 1, a sound insulation box 2 provided on the base 1, and the sound insulation box 2 fixedly connected to the base 1. Specifically, as shown in fig. 2, the soundproof case 2 includes a case body 201 and a sound-absorbing cotton 202 attached to an inner wall of the case body 201, and the sound-absorbing cotton 202 preferably has a thickness of 3cm to 5 cm. Of course, a door is further provided in the soundproof case 2 to perform subsequent operations. In this embodiment, the box body 201 is a metal shell.

As shown in fig. 1, the upper end surface of the base 1 is provided with a vibration disc 3, the vibration disc 3 is located in the sound insulation box body 2, the upper end surface of the vibration disc 3 is provided with a plurality of sieve discs 4 which are sequentially nested along the height direction, and the sieve disc cover 10 is arranged on the sieve disc 4 at the topmost layer. Specifically, as shown in fig. 4, the top of each sieve tray 4 is provided with a step 401 matching the bottom in size, and two adjacent sieve trays 4 are engaged with each other through the step 401. Preferably, be provided with rubber circle 12 on the step 401 on every sieve dish 4, can play the cushioning effect after enabling the pressurization of sieve dish 4, prevent that sieve dish 4 from being damaged after the pressurization, sieve dish 4 is more stable simultaneously, is favorable to slowing down the production of noise.

As shown in fig. 1, vertical rods 5 are arranged on the upper end surface of the vibration disk 3 around the screen disk 4, in this embodiment, three vertical rods 5 are arranged on the upper end surface of the vibration disk 3 around the screen disk 4, the vertical rods 5 are welded on the upper end surface of the vibration disk 3 in a welding manner, and in order to ensure the structural stability of the three vertical rods 5, it is preferable that a structural reinforcement 11 is connected to the upper ends of the three vertical rods 5. Each vertical rod 5 is slidably sleeved with a sliding barrel 6, the side wall of each sliding barrel 6 is in threaded connection with a puller bolt 7, and after the sliding barrels 6 slide to a proper position, the puller bolts 7 are tightly propped against the corresponding vertical rods 5, so that the sliding barrels 6 are limited in movement. The side wall of the sliding barrel 6 is also connected with a cross rod 8 extending to the upper part of the sieve tray 4, the end part of the cross rod 8 is connected with a pressing device 9 used for pressing the sieve trays 4 which are nested in sequence, and the pressing device 9 is pressed on a sieve tray cover 10. Specifically, as shown in fig. 3, the pressing device 9 includes an upper platen 901, a lower platen 902, and pressing bolts 903, the lower platen 902 is disposed on the sieve tray cover 10, the upper platen 901 is located right above the lower platen 902, the upper platen 901 is connected to the cross bar 8, the pressing bolts 903 facing downward vertically are screwed to the upper platen 901, and the pressing bolts 903 are used for pressing the lower platen 902. After a plurality of screen discs 4 of different screen levels along the height direction are nested in sequence, a screen disc cover 10 is covered on the screen disc 4 at the topmost layer, then the height of a sliding barrel 6 is adjusted, so that a pressing device 9 is positioned on the screen disc cover 10, that is, a lower pressure disc 902 is placed on the screen disc cover 10, and by screwing down a pressing bolt 903 on an upper pressure disc 901, the pressing bolt 903 is abutted to the lower pressure disc 902 downwards, and then the sequentially nested screen discs 4 are pressed, unnecessary vibration between the screen discs 4 is reduced, and noise generated by non-pressing between the screen discs 4 during vibration is effectively reduced.

Of course, as the shaking screen machine of the present invention, as well as the conventional shaking screen machine, the driving device 13 is also provided on the base 1, the eccentric device connected to the vibrating disk 3 is provided in the base 1, the driving device 13 is connected to the eccentric device, and in this embodiment, the driving device 13 is a motor. During operation, the driving device 13 drives the vibration disc 3 to vibrate through the eccentric device, and the vibration disc 3 drives the sieve disc 4 to vibrate.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The vibrating screen shaker is characterized by comprising a base (1), wherein a sound insulation box body (2) is arranged on the base (1), a vibrating disc (3) is arranged on the upper end face of the base (1) and is located in the sound insulation box body (2), a plurality of screen discs (4) which are sequentially nested in the height direction are arranged on the upper end face of the vibrating disc (3), and a screen disc cover (10) is arranged on the screen disc (4) on the topmost layer; vertical rods (5) are arranged on the upper end face of the vibrating disc (3) around the screen disc (4), sliding sleeves (6) are sleeved on the vertical rods (5) in a sliding mode, and tightening bolts (7) are connected to the side walls of the sliding sleeves (6) in a threaded mode; the side wall of the sliding barrel (6) is further connected with a cross rod (8) extending above the sieve tray (4), the end portion of the cross rod (8) is connected with a pressing device (9) used for pressing the sieve tray (4) nested in sequence, and the pressing device (9) is pressed on the sieve tray cover (10).

2. The vibrating shaker as claimed in claim 1, characterized in that the hold-down device (9) comprises an upper platen (901), a lower platen (902) and hold-down bolts (903), the lower platen (902) is arranged on the screen cover (10), the upper platen (901) is located right above the lower platen (902), the upper platen (901) is connected with the cross bar (8), the hold-down bolts (903) are connected to the upper platen (901) in a threaded manner, and the hold-down bolts (903) are used for holding down the lower platen (902).

3. The vibrating screen shaker as claimed in claim 1, characterized in that the sound insulation box (2) comprises a box body (201) and sound absorption cotton (202) attached to the inner wall of the box body (201).

4. The vibrating screen shaker as claimed in claim 3, characterised in that the sound-absorbing cotton (202) has a thickness of 3cm to 5 cm.

5. A vibrating shaker as claimed in claim 1, characterised in that three vertical bars (5) are arranged on the upper end surface of the vibrating pan (3) around the periphery of the pan (4), the upper ends of the three vertical bars (5) being connected to a structural reinforcement (11).

6. The vibrating screen shaker as claimed in claim 1, characterized in that the top of each screen tray (4) is provided with a step (401) matching the size of the bottom, and two adjacent screen trays (4) are embedded by the step (401).

7. A vibrating shaker as claimed in claim 6, characterised in that the steps (401) of each screening disc (4) are provided with rubber rings (12).

8. A vibrating shaker as claimed in claim 1, characterised in that said base (1) is provided with driving means (13), in that said base (1) is provided with eccentric means connected to said vibrating disc (3), said driving means (13) being connected to said eccentric means.

9. A vibrating shaker as in claim 1, characterized in that said sound-insulating box (2) is provided with a box door.