CN212944045U

CN212944045U - Biax flip-flow screen

Info

Publication number: CN212944045U
Application number: CN202021632775.8U
Authority: CN
Inventors: 韩闪光; 王明远
Original assignee: Henan Winner Vibrating Equipment Co Ltd
Current assignee: Henan Winner Vibrating Equipment Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-04-13
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a biaxial tension and relaxation sieve, which comprises a sieve body 1, a floating frame 2, a damping spring 3, a secondary floating spring 4 and a vibration exciter 5, wherein the lower end of the floating frame 2 is connected with the sieve body 1 through the damping spring 3, and the upper end is connected with the sieve body 1 through the secondary floating spring 4; the vibration exciter 5 is arranged in the middle of the screen body 1 and can drive the screen body 1 to vibrate; the vibration exciter 5 is a double-shaft flange type vibration exciter. The utility model discloses a biax relaxation sieve's vibration orbit is by rectilinear vibration and circular vibration interconversion when the vibration exciter direction of rotation of difference to improve the screening effect.

Description

Biax flip-flow screen

Technical Field

The utility model relates to a material sorting technology field especially relates to a biax relaxation sieve.

Background

The screening machine is a mechanical device used for sorting various raw materials and various primary products into a plurality of grades according to the granularity of the materials by using the actions of rotation, vibration, reciprocation, shaking and the like, or removing moisture, impurities and the like in the raw materials and the primary products, and then carrying out the next processing and improving the product quality.

The tension and relaxation sieve is a new type of sieving equipment which has recently attracted much attention, and the design principle of the tension and relaxation sieve is that double vibration is generated by a single drive, namely, two vibrations are provided by a drive through resonance: the vibration exciter drives the linear vibration generated by the fixed frame and the vibration generated by the floating screen frame to move relatively. The both ends of elasticity polyurethane sifter are installed respectively on fixed frame crossbeam and floating frame crossbeam, and at the screening in-process, the frequency that elasticity polyurethane sifter was 800 times per minute constantly stretches out and draws back the song to obtain the highest acceleration of 50g, under so high vibration strength and sieve warp, effectually prevented the sieve mesh jam, loose layering that fine grain wet-stick material can be fine simultaneously is passed through the sieve, and screening efficiency promotes by a wide margin, and dry process screening minimum screening granularity can reach 1 mm.

The vibration tracks of the existing flip-flow screen are generally of one type (straight lines or circular), and the two vibration shapes cannot be switched back and forth. In the middle of the large flip-flow screen, only one group of flange vibration exciters are generally used for driving to form a circular vibration track or the rear part of the large flip-flow screen is driven by a seat type vibration exciter to form a linear motion track. The design causes that the using environment of the galloping screen is single and the using range is limited.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem existing in the prior art, the utility model provides a biax relaxation sieve.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a biaxial tension-relaxation sieve comprises a sieve body 1, a floating frame 2, a damping spring 3, a secondary floating spring 4 and a vibration exciter 5, wherein,

the lower end of the floating frame 2 is connected with the screen body 1 through a damping spring 3, and the upper end of the floating frame is connected with the screen body 1 through a secondary floating spring 4; the vibration exciter 5 is arranged in the middle of the screen body 1 and can drive the screen body 1 to vibrate;

the vibration exciter 5 is a double-shaft flange type vibration exciter.

The vibration exciters 5 comprise at least two groups of vibration exciters.

The vibration direction angles of the at least two groups of vibration exciters and the screen surface of the biaxial relaxation screen form a set angle.

The vibration direction angles of the at least two groups of vibration exciters can be adjusted according to requirements.

The eccentric shafts of the at least two groups of vibration exciters can rotate in the same direction or in opposite directions.

The floating frame 2 is internally provided with a screen.

The screen is made of urethane.

The floating frame 2 is an inner layer frame and an outer layer frame which are connected by a shearing spring.

The utility model has the advantages that:

in this embodiment, through the structure that sets up the vibration exciter, use biax flange formula vibration exciter, the direction of vibration angle of at least two sets of vibration exciters becomes set angle with the sifter of biax relaxation sieve for when the vibration orbit of biax relaxation sieve was in different vibration exciter rotation directions, the screen frame was by linear vibration and circular vibration interconversion, in order to improve the screening effect. The utility model discloses it is little to take up an area of the space, and overall layout is reasonable, and each part is connected the standard, and environmental protection, safe and reliable more can reduce the use cost and the maintenance cost of enterprise effectively.

Drawings

Fig. 1 is a schematic structural diagram of a biaxial relaxation sieve provided by an embodiment of the present invention;

FIG. 2 is one of the schematic diagrams of the operation of a dual-shaft relaxation screen provided by the embodiment of the present invention;

fig. 3 is a second schematic view illustrating the operation of the dual-shaft relaxation sieve according to the embodiment of the present invention.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

The embodiment provides a biaxial relaxation sieve, as shown in fig. 1, comprising a sieve body 1, a floating frame 2, a damping spring 3, a secondary floating spring 4 and an exciter 5, wherein,

the vibration exciter 5 is a double-shaft flange type vibration exciter.

The vibration exciters 5 comprise at least two groups of vibration exciters.

The eccentric shafts of the at least two groups of vibration exciters can rotate in the same direction or in opposite directions. As shown in fig. 2 and fig. 3, fig. 2 shows that when the eccentric shafts of the two sets of exciters rotate in the same direction, the motion trail of the relaxation sieve can be circular, and fig. 3 shows that when the eccentric shafts of the two sets of exciters rotate in opposite directions (in opposite directions), the motion trail of the relaxation sieve can be linear.

The floating frame 2 is internally provided with a screen.

The screen is made of urethane.

Specifically, a biaxial flange type vibration exciter is designed in the middle of the biaxial relaxation sieve provided by the embodiment, and a certain angle is formed between the vibration direction angle of the two groups of vibration exciters 5 and the sieve surface. The vibration exciter 5 drives the screen body 1 to vibrate, the screen body 1 drives the floating frame 2 to vibrate in a certain track through the damping springs 3 and the secondary floating springs 4, and the amplitude of the floating frame 2 is larger than that of the screen body 1 due to the combined action of the upper and lower rows of damping springs 3 and the secondary floating springs 4. The two groups of eccentric shafts of the two groups of vibration exciters 5 rotate in the same direction to realize that the motion trail of the relaxation sieve is circular, and the two groups of eccentric shafts rotate in opposite directions (in opposite directions) to realize that the motion trail of the relaxation sieve is linear.

The vibration track of the biaxial relaxation sieve of the embodiment is converted from a straight line to a circle so as to improve the sieving effect. The vibration track can be circular for large relaxation sieves with the width of more than three meters and four meters.

In this embodiment, through the structure that sets up the vibration exciter, use biax flange formula vibration exciter, the direction of vibration angle of at least two sets of vibration exciters becomes set angle with the sifter of biax relaxation sieve for when the vibration exciter direction of vibration that the vibration orbit of biax relaxation sieve is different again, the screen frame is by linear vibration and circular vibration interconversion, in order to improve the screening effect. The utility model discloses it is little to take up an area of the space, and overall layout is reasonable, and each part is connected the standard, and environmental protection, safe and reliable more can reduce the use cost and the maintenance cost of enterprise effectively.

In the description of the present invention, it should be noted that the terms "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A biaxial relaxation sieve is characterized by comprising a sieve body (1), a floating frame (2), a damping spring (3), a secondary floating spring (4) and a vibration exciter (5), wherein,

the lower end of the floating frame (2) is connected with the screen body (1) through a damping spring (3), and the upper end of the floating frame is connected with the screen body (1) through a secondary floating spring (4); the vibration exciter (5) is arranged in the middle of the screen body (1) and can drive the screen body (1) to vibrate;

the vibration exciter (5) is a double-shaft flange type vibration exciter.

2. The biaxial relaxation sieve of claim 1 wherein said vibration exciters (5) comprise at least two sets of vibration exciters.

3. The biaxial relaxation sieve of claim 2 wherein the direction of vibration angles of the at least two sets of vibration exciters are at a set angle to the sieve face of the biaxial relaxation sieve.

4. The biaxial relaxation sieve of claim 3 wherein the direction of vibration angle of the at least two sets of exciters can be adjusted as desired.

5. The biaxial relaxation sieve of claim 2 wherein the eccentric shafts of said at least two sets of exciters are capable of co-rotating or counter-rotating.

6. The biaxial relaxation sieve of claim 1 characterized in that inside the floating frame (2) a screen is arranged.

7. The biaxial relaxation sieve of claim 6 wherein said screen is of urethane material.

8. The biaxial relaxation sieve of claim 1 characterized in that the floating frame (2) is a two-layer frame and connected with shear springs.