Novel screen mesh frame structure for spin vibration screen

Abstract

The novel screen net rack structure comprises an outer frame assembly, a connecting rod and an inner frame, the outer frame assembly is provided with the inner frame through the connecting rod, one end of a wave guide rod is welded and fixed to the inner frame, the other end of the wave guide rod is provided with an energy converter through a double-end stud, and the other end of the wave guide rod is provided with an ultrasonic transducer. One part of the outer frame assembly is fixedly welded to the wave guide rod through a connecting piece, and the screen body is fixedly bonded to the surface of the outer frame assembly and the surface of the inner frame through glue. The problem that a conventional rotary vibration screen net rack structure cannot meet the requirements of customers is solved; in the manufacturing process of the screen, a steel pipe needs to be bent and formed, after the steel pipe is bent, the steel pipe is prone to additional deformation and large in deviation from the design size and shape, the resonance frequency and the vibration mode of the steel pipe are greatly different from the frequency and the vibration mode in the design process, when an ultrasonic transducer is adopted for excitation, the impedance of the screen is increased, and the transducer is seriously heated; and the screening efficiency of a screen is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary vibration screen technical field, concretely relates to a novel screen mesh net rack structure for rotary vibration screen. BACKGROUND

[0002] The conventional rotary vibration screen screen mesh net rack structure outer frame adopts the bending of 1mm or 1.5mm stainless steel special-shaped steel pipe, the screen mesh structure inner frame adopts the bending of 1mm or 1.5mm rectangular steel pipe (standard steel pipe), the special-shaped steel pipe needs to open mould and customize, the price is high, the production cycle is long, under the condition of small order quantity, the cost is high, leads to product no competitiveness, cannot satisfy the demand of customer, and in the screen mesh manufacturing process, the steel pipe is bent into shape, after bending, the steel pipe is prone to additional deformation, and the deviation with the design size and shape is large, leading to the resonance frequency and vibration mode being quite different from the frequency and vibration mode when designing, when using ultrasonic transducer excitation, the screen mesh impedance will be large, the transducer will heat seriously, and the screen mesh screening efficiency is low.

[0003] To solve the above problems, a novel screen mesh net rack structure for rotary vibration screen is provided in the application. UTILITY MODEL CONTENTS

[0004] In view of the problems in the related art, the utility model provides a novel screen mesh net rack structure for rotary vibration screen, which can meet various use requirements of customers, has accurate size, low impedance, small temperature rise of transducer and can also be applied as ordinary screen mesh.

[0005] Therefore, the utility model adopts the following specific technical scheme:

[0006] A novel screen mesh net rack structure for rotary vibration screen, comprising an outer frame assembly, a connecting rod and an inner frame, the outer frame assembly is provided with the inner frame through the connecting rod, one end of a waveguide rod is welded and fixed on the inner frame, the other end of the waveguide rod is provided with a transducer through a stud bolt, one part of the outer frame assembly is welded and fixed with the waveguide rod through a connecting piece, and the surface of the outer frame assembly and the inner frame is adhesively fixed with a screen mesh body.

[0007] As a further scheme of the utility model, the outer frame assembly comprises an outer frame flange, an outer frame inner plate and an outer frame outer plate are welded and fixed on the top wall of the outer frame flange, an outer frame top plate is welded on the top end of the outer frame inner plate and the outer frame outer plate, and the outer frame flange, the outer frame inner plate, the outer frame outer plate and the outer frame top plate are mutually welded to form an integral whole.

[0008] As a further scheme of the utility model, one end of the connecting rod is welded and fixed on the outer wall of the outer frame inner plate, and the other end of the connecting rod is welded and fixed on the outer wall of the inner frame.

[0009] As a further embodiment of this utility model, another form of the outer frame assembly is a new whole formed by welding the outer frame outer plate, the outer frame flange and the outer frame top plate together, and in this form of the outer frame assembly, one end of the connecting rod is welded and fixed to the inner wall of the outer frame outer plate.

[0010] As a further embodiment of this utility model, the inner frame is a ring made of a steel pipe with a rectangular cross-section.

[0011] As a further embodiment of this utility model, the connecting member structure is a rectangular steel plate, bent into two L-shaped structures of different lengths, with an arc-shaped groove at one end and rounded corners at the bend.

[0012] As a further embodiment of this utility model, the waveguide structure has a threaded hole at the center of the long end, the long end and the short end are at a certain angle, and the transition is rounded.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model has a simple structure, requires no mold, has a short manufacturing cycle, and low cost. The cross-sectional shape can be adjusted arbitrarily to fully meet various customer needs. Moreover, it has accurate dimensions, small deviations between the resonant frequency and mode shape and the design value, low impedance, and low transducer temperature rise, thus solving the heat generation problem. As a result, the ultrasonic transducer has a large amplitude when excited, which leads to high screening efficiency. At the same time, it can also be used as a regular screen when ultrasonic excitation is not used. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the overall structure of a novel screen frame structure for a vibrating screen according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the back of the overall structure of a novel screen frame structure for a vibrating screen according to an embodiment of the present utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of a novel screen frame structure for a vibrating screen according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of a novel screen frame structure for a rotary vibrating screen, according to an embodiment of the present invention, in a form without ultrasonic excitation.

[0020] Figure 5 is another form of the outer frame assembly of the novel screen mesh net rack structure for a rotary vibration screen according to an embodiment of the present application;

[0021] Figure 6 is another form of the outer frame assembly of the novel screen mesh net rack structure for a rotary vibration screen according to an embodiment of the present application;

[0022] Figure 7 is a connection piece structure diagram of the novel screen mesh net rack structure for a rotary vibration screen according to an embodiment of the present application;

[0023] Figure 8 is a wave guide rod structure diagram of the novel screen mesh net rack structure for a rotary vibration screen according to an embodiment of the present application.

[0024] In the drawings:

[0025] 1, outer frame assembly; 2, connecting rod; 3, inner frame; 4, wave guide rod; 5, double head stud; 6, transducer; 7, connecting piece; 8, screen mesh body; 9, outer frame flange; 10, outer frame inner plate; 11, outer frame outer plate; 12, outer frame top plate; 13, circular arc type groove; 14, threaded hole. DETAILED DESCRIPTION

[0026] To further illustrate the embodiments, the present application provides drawings, which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can explain the operating principle of the embodiments in cooperation with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to the embodiments of the present application, a novel screen mesh net rack structure for a rotary vibration screen is provided.

[0028] Please refer to the drawings in the specification Figures 1-8The utility model discloses a new screen mesh net rack structure for rotary vibration screen, including outer frame assembly 1, connecting rod 2 and inner frame 3, outer frame assembly 1 is installed with inner frame 3 through connecting rod 2, the inner frame 3 is the steel pipe of rectangular section and makes a round ring, one end of waveguide 4 is fixedly connected on the inner frame 3, the other end of waveguide 4 is installed with transducer 6 through stud 5, the structure of waveguide 4 is long end center position and is opened a threaded hole 14, and long end and short end form a certain angle, and the transition is inverted with fillet, one of outer frame assembly 1 is fixedly connected with waveguide 4 through connecting piece 7, the structure of connecting piece 7 is a rectangular steel plate, and is bent into L type structure of two segments of different lengths, and one end is opened arc type recess 13, and the bending portion is inverted with fillet, the surface of outer frame assembly 1 and inner frame 3 is fixedly connected with screen mesh main part 8 through glue, outer frame flange 9 is included in outer frame assembly 1, outer frame inner plate 10 and outer frame outer plate 11 are fixedly connected on the top wall of outer frame flange 9, the top of outer frame inner plate 10 and outer frame outer plate 11 is welded with outer frame top plate 12, outer frame flange 9, outer frame inner plate 10, outer frame outer plate 11 and outer frame top plate 12 are mutually welded and form a whole, one end of connecting rod 2 is fixedly connected on the outer wall of outer frame inner plate 10, the other end of connecting rod 2 is fixedly connected on the outer wall of inner frame 3.The utility model discloses simple structure, need not open mould, and the manufacturing period is short, and the cost is low, and can adjust the cross section shape at will, can satisfy the multiple needs of customer completely, and moreover, the size is accurate, the deviation of resonance frequency and vibration mode and design value is small, the impedance is low, the temperature rise of transducer 6 is small, and the heating problem is solved, so that when the ultrasonic transducer 6 is excited, the amplitude is big, and then the screening efficiency is high, and simultaneously when not using ultrasonic excitation, can also be used as ordinary screen mesh.

[0029] In an embodiment, referring to the drawings Figure 5 and Figure 6 As a further aspect of the utility model, the other form of the outer frame assembly 1 is a new whole formed by the mutual welding of the outer frame outer plate 11, the outer frame flange 9 and the outer frame top plate 12, and one end of the connecting rod 2 is welded and fixed to the inner wall of the outer frame outer plate 11 when the outer frame assembly 1 of this form is used. The net rack structure composed of the outer frame assembly 1 of this form can also be used as a common net rack.

[0030] In an embodiment, referring to the drawings Figure 4 As a further aspect of the utility model, the connecting piece 7 and the waveguide 4 can not be welded and the stud 5 and the transducer 6 can not be installed if ultrasonic excitation is not needed, and the net rack structure can be used as a common net rack.

[0031] Workflow: when using ultrasonic excitation, first use the stud 5 to install the transducer 6 on one end of the waveguide rod 4, then install the screen frame through the outer frame flange 9 outer edge part and the screen machine installation structure, the ultrasonic transducer 6 transmits energy to the screen frame inner frame 3 through the waveguide rod 4, the screen frame inner frame 3 and the screen frame outer frame assembly 1 together with the transducer 6 realize resonance, drive the screen body 8 to vibrate, realize screening.

[0032] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A new screen deck structure for a rotary vibrating screen, comprising an outer frame assembly (1), connecting rods (2) and an inner frame (3), characterized in that: The outer frame assembly (1) is installed with an inner frame (3) through a connecting rod (2), one end of the inner frame (3) is welded and fixed with a waveguide rod (4), the other end of the waveguide rod (4) is installed with a transducer (6) through a stud (5), one part of the outer frame assembly (1) is welded and fixed with the waveguide rod (4) through a connecting piece (7), the surface of the outer frame assembly (1) and the inner frame (3) is fixed with a screen body (8) through glue.

2. A new screen deck structure for a rotary vibrating screen as claimed in claim 1, wherein: The outer frame assembly (1) comprises an outer frame flange (9), the top wall of the outer frame flange (9) is welded and fixed with an outer frame inner plate (10) and an outer frame outer plate (11), the top end of the outer frame inner plate (10) and the outer frame outer plate (11) is welded with an outer frame top plate (12), the outer frame flange (9), the outer frame inner plate (10), the outer frame outer plate (11) and the outer frame top plate (12) are mutually welded to form an integral whole.

3. A new screen deck structure for a rotary-vibrating screen according to claim 2, characterized in that: One end of the connecting rod (2) is welded and fixed on the outer wall of the outer frame inner plate (10), the other end of the connecting rod (2) is welded and fixed on the outer wall of the inner frame (3).

4. A new screen deck structure for a rotary vibrating screen as claimed in claim 1, wherein: The other form of the outer frame assembly (1) is that the outer frame outer plate (11), the outer frame flange (9) and the outer frame top plate (12) are mutually welded to form a new integral whole, and one end of the connecting rod (2) is welded and fixed on the inner wall of the outer frame outer plate (11) when the outer frame assembly (1) is used.

5. A new screen deck structure for a rotary vibrating screen as claimed in claim 1, wherein: The inner frame (3) is a circular ring made of a rectangular steel pipe.

6. A new screen deck structure for a rotary vibrating screen as claimed in claim 1, wherein: The connecting piece (7) is a rectangular steel plate, which is bent into two segments of L-shaped structure with different lengths, one end of which is provided with a circular arc groove (13), and the bent part is provided with a rounded corner.

7. A new screen deck structure for a rotary-vibrating screen according to claim 1, characterized in that: The waveguide rod (4) is provided with a threaded hole (14) at the center of the long end, the long end and the short end are at a certain angle, and the transition part is provided with a rounded corner.

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