阅读说明：本技术 一种复合振动筛 (composite vibrating screen ) 是由 许荣玉 于 2019-11-04 设计创作，主要内容包括：一种复合振动筛,包括筛网组件,还包括往复运动组件,能够带动筛网组件做水平的往复运动,同时筛网组件下侧连通导向管,用于向下层筛网组件下料；其中筛网组件包括内筛、外框和主动辊,内筛是圆形筛,内筛和外框内壁滑动配合,主动辊定位于外框上,其辊面接触内筛,并能够带动内筛沿自身轴线转动。该振动筛能够提高筛分精度和效率,减少筛网变形。(composite vibration sieve comprises a screen assembly and a reciprocating assembly, the screen assembly can be driven to do horizontal reciprocating motion, the lower side of the screen assembly is communicated with a guide pipe and used for discharging materials to a lower layer screen assembly, the screen assembly comprises an inner sieve, an outer frame and a driving roller, the inner sieve is a circular sieve, the inner sieve is in sliding fit with the inner wall of the outer frame, the driving roller is positioned on the outer frame, the roller surface of the driving roller is in contact with the inner sieve and can drive the inner sieve to rotate along the axis of the driving roller.)

The composite vibrating screen comprises a screen assembly and is characterized by further comprising a reciprocating motion assembly, wherein the reciprocating motion assembly can drive the screen assembly to horizontally reciprocate, and meanwhile, the lower side of the screen assembly is communicated with a guide pipe and used for feeding materials to a lower screen assembly;

the screen assembly comprises an inner screen, an outer frame and a driving roller, the inner screen is a circular screen, the inner screen is in sliding fit with the inner wall of the outer frame, the driving roller is positioned on the outer frame, the roller surface of the driving roller is in contact with the inner screen, and the driving roller can drive the inner screen to rotate along the axis of the driving roller.

2. The composite vibration screen of claim 1, wherein a guide pipe is fixedly communicated with the bottom side of the outer frame, a guide cone is fixedly communicated with the top side of the outer frame, the guide cone is in an inverted frustum shape, the top side of the guide cone is hermetically connected with the top side of the outer frame, the bottom side of the guide cone extends into the inner screen, the longitudinal height of the bottom side of the guide cone is lower than that of the top side of the inner screen, the guide cone is coaxial with the inner screen, the outer diameter of the bottom side of the guide cone is 2/3-1/4 of the inner diameter of the inner screen, and the longitudinal distance between the bottom side of the guide cone and the top side of the inner screen is.

3. The composite shaker screen as in claim 2, wherein the guide tube is a hose.

4. The composite vibration screen of claim 2, wherein the guide pipe is divided into three sections, the outer frame connecting portion of the upper -stage screen assembly and the outer frame connecting portion of the lower -stage screen assembly are hard pipes, and the two sections of hard pipes are communicated with each other by using a hose.

5. The composite vibration screen as claimed in claim 1, wherein the reciprocating mechanism is kinds of crank link mechanism, cylinder, oil cylinder, and disc cam mechanism.

6. The composite vibratory screen of claim 1 further comprising an ultrasonic generator secured to the inner screen.

Technical Field

The invention relates to a vibrating screen for producing metal powders, in particular to a vibrating screen for compounding two or more kinds of vibration metal powders.

Background

The existing technology divides the vibrating screen, uses ultrasonic vibration more, the screening of the screening machine is not accurate enough, the screening efficiency is relatively low, the retention time of the material on the screen is long, and the screen is easy to deform.

Disclosure of Invention

The invention aims to provide composite vibrating screens with high screening efficiency, difficult deformation of screens and more accurate screening effect.

In order to achieve the purpose, the invention comprises a screen assembly and a reciprocating assembly, wherein the reciprocating assembly can drive the screen assembly to horizontally reciprocate, and meanwhile, the lower side of the screen assembly is communicated with a guide pipe for feeding the screen assembly on the lower layer;

the screen assembly comprises an inner screen, an outer frame and a driving roller, the inner screen is a circular screen, the inner screen is in sliding fit with the inner wall of the outer frame, the driving roller is positioned on the outer frame, the roller surface of the driving roller is in contact with the inner screen, and the driving roller can drive the inner screen to rotate along the axis of the driving roller.

, a guide pipe is fixedly communicated with the bottom side of the outer frame, a guide taper pipe is fixedly arranged on the top side of the outer frame, the guide taper pipe is in an inverted frustum shape, the top side of the guide taper pipe is connected with the top side of the outer frame in a sealing mode, the bottom side of the guide taper pipe extends into the inner screen, the longitudinal height of the bottom side of the guide taper pipe is lower than that of the top side of the inner screen, the guide taper pipe is coaxial with the inner screen, the outer diameter of the bottom side of the guide taper pipe is 2/3-1/4 of the inner diameter of the inner screen, and the longitudinal distance between the bottom side of.

Preferably, the guide tube is a hose.

Preferably, the guide pipe is divided into three sections, a rigid pipe is used for connecting the outer frame of the upper -stage screen assembly and the outer frame of the lower -stage screen assembly, and the two sections of rigid pipes are communicated through a hose.

Preferably, the reciprocating mechanism is types of crank-link mechanism, cylinder, oil cylinder and disc cam mechanism.

Preferably, the ultrasonic generator is fixed on the inner screen.

The invention has the beneficial effects that the adaptability of the screening machine is improved by utilizing composite vibration, the screening machine is suitable for metal powder with different particle size ranges, the powder can be rapidly screened, the deformation of a screen is reduced, and the screening precision is improved.

Drawings

FIG. 1 is a schematic of the present invention.

Figure 2 is a schematic of a screen combination.

In the figure, a screen mesh assembly 100, an inner screen 10, an outer frame 20, a driving roll 21, a guide taper pipe 22, a reciprocating assembly 30, a guide pipe 40 and an ultrasonic generator 50

Detailed Description

The invention is described in detail below with reference to the accompanying drawings.

composite vibrating screen, including screen cloth subassembly 100, its characterized in that, still includes reciprocating motion subassembly 30, can drive screen cloth subassembly 100 and do horizontal reciprocating motion, and screen cloth subassembly downside intercommunication stand pipe 40 simultaneously is used for the unloading of lower screen cloth subassembly, avoids the powder raise dust so make screen cloth subassembly reciprocating motion, reach the mesh of screening.

The screen assembly 100 comprises an inner screen 10, an outer frame 20 and a driving roller 21, wherein the inner screen 10 is a circular screen, the inner screen 10 is in sliding fit with the inner wall of the outer frame 20, the driving roller 21 is positioned on the outer frame 20, the roller surface of the driving roller is in contact with the inner screen 10, and the driving roller can drive the inner screen 10 to rotate along the axis of the driving roller. So except can reciprocating linear motion, the screen cloth can also improve screening efficiency and precision along self axis rotation.

In order to avoid powder material from being thrown due to the rotation of the inner screen, a guide pipe 40 is fixedly communicated with the bottom side of the outer frame 20, a guide conical pipe 22 is fixedly arranged on the top side of the outer frame 20, the guide conical pipe 22 is in an inverted frustum shape, the top side is in sealing connection with the top side of the outer frame 20, the bottom side extends into the inner screen 10, the longitudinal height of the bottom side is lower than that of the top side of the inner screen 10, the guide conical pipe 22 is coaxial with the inner screen 10, the outer diameter of the bottom side of the guide conical pipe 22 is 2/3-1/4 of the inner diameter of the inner screen 10, and the longitudinal distance between the bottom side of the guide conical pipe and the top side of;

in order to facilitate that the screen assemblies at different levels can be screened independently without mutual vibration influence, the guide pipe 40 is a hose, and can also be provided with three sections, a connecting part of the guide pipe and the outer frame 20 of the upper -level screen assembly and a connecting part of the guide pipe and the outer frame 20 of the lower -level screen assembly are hard pipes, and the two sections of hard pipes are communicated through the hose.

The reciprocating mechanism can be a crank connecting rod mechanism, and can be a common air cylinder, an oil cylinder, a disc cam mechanism and the like.

Through the test, the sliding fit between the inner screen 10 and the outer frame 20 is more cost-saving due to the use of the bearing, and the loss of the pure sliding fit is larger. The inner screen 10 is fixed in the bearing inner ring, the bearing outer ring is fixed on the inner wall of the outer frame, and the driving roller 21 is driven by the motor to drive the inner screen to rotate.

Still fixed mounting has supersonic generator 50 on the inner screen, to different metal powder, can design different screening systems, reciprocating motion's distance, frequency, rotate the speed, the ultrasonic frequency of screening, and the cooperation of these three vibrations can effectively obtain efficient screening effect, improves screening efficiency, reduces the deformation of screen cloth, noise reduction.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.