CN115025990B - Heavy double-deck straight line sieve - Google Patents
Heavy double-deck straight line sieve Download PDFInfo
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- CN115025990B CN115025990B CN202210784260.7A CN202210784260A CN115025990B CN 115025990 B CN115025990 B CN 115025990B CN 202210784260 A CN202210784260 A CN 202210784260A CN 115025990 B CN115025990 B CN 115025990B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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Abstract
The invention provides a heavy double-layer straight line screen, which comprises: the screen frame, the screen surface, the spring seat, the vibration exciter and the motor; the screen frame comprises side plates, an upper layer beam, a lower layer beam, an excitation beam, a reinforcing plate and a reinforcing beam. Has the advantages that: 1. on the basis of improving the cross beam structure, the invention strengthens the side plates of the screening machine by using the stiffening beams of the sealing structure arranged along the height direction of the screening machine, has better section moment of inertia than that of the opening type stiffening structure, has large bending resistance and difficult deformation, greatly improves the integral strength of the screening machine, and solves the technical problem of side sway of the lower side plates of the heavy double-layer linear screen with large size or large treatment capacity. 2. The invention adopts the reinforcing plates arranged along the length direction of the screen to reinforce the side plates of the screen, in particular to reinforce the contact position of the side plates of the screen and the end face of the cross beam, thereby improving the integral strength of the screen. 3. The spring seat is reinforced, the energy storage effect is improved when the screening machine vibrates, the vibration of the screening machine to the foundation is reduced, the damage of the screening machine during vibration is avoided, and the performance of the whole machine is better.
Description
Technical Field
The invention relates to a linear screen, in particular to a heavy double-layer linear screen.
Background
The linear vibrating screen is a vibrating screen with a linear or approximately linear movement track of a screen box and a material in a longitudinal section perpendicular to a screen surface, has the advantages of good screening effect, large treatment capacity, simple structure, low energy consumption, low noise, good sealing performance, convenient maintenance and the like, and is widely applied to classification, dehydration, desliming and medium-removing operations of the materials in industries such as coal, hydropower, mine and the like.
In recent years, with economic development and technical progress, the requirements of various industries on the screening efficiency and the treatment capacity of the linear vibrating screen are increasingly greater, and domestic enterprises begin to research and develop and produce heavy linear vibrating screens, mainly relating to large-size screens/screening surfaces, double-layer or multi-layer screens and the like. However, the screening machine has the problems of low screening effect, poor quality of the screening machine and the like at present, and the technical problems of beam or side plate fracture, screen plate damage, lateral swing of the lower layer of the screening machine and the like are more caused at the same time.
Analysis shows that the width of the screen surface influences the deflection deformation of the cross beam of the screen machine, and the longer the screen machine is, the larger the transverse swing deformation of the side plate is, and the increase of the transverse swing deformation not only can influence the screening effect, but also can lead to the damage of the screen machine parts if the screening efficiency and the screening precision are reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a heavy double-layer straight line screen, which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
the invention provides a heavy double-layer straight line screen, which comprises: the screen frame (1), a screen surface (2), a spring seat (3), a vibration exciter (4) and a motor (5);
the screen frame (1) comprises side plates (101), an upper layer beam (102), a lower layer beam (103), an excitation beam (105), a reinforcing plate (106) and a reinforcing beam (107);
the number of the side plates (101) is two, and the side plates are oppositely arranged left and right; -mounting said excitation beam (105) on top between two of said side plates (101); the vibration excitation beam (105) is used for installing the vibration exciter (4), and the vibration exciter (4) generates vibration excitation force under the driving of the motor (5);
-mounting the spring seat (3) outside each side plate (101);
a plurality of upper cross beams (102) are arranged between the two side plates (101) and below the exciting beams (105) along the length direction of the screen; a space is arranged between two adjacent upper-layer beams (102); the surface of each upper layer beam (102) is fixedly provided with a screen surface (2) positioned on the upper layer;
one lower-layer cross beam (103) is arranged between the two side plates (101) and right below each upper-layer cross beam (102); the surface of each lower layer cross beam (103) is fixedly provided with a screen surface (2) positioned at the lower layer;
the reinforcing plate (106) which is arranged on the upper layer is covered and attached and fixed on the outer side of each side plate (101) along the length direction of the screen at a height position corresponding to the end face of each upper layer beam (102); covering and attaching the reinforcing plate (106) positioned at the lower layer along the length direction of the screen machine at the height position corresponding to the end surface of each lower layer beam (103);
the reinforcement beam (107) is fixedly mounted on the outer side of each side plate (101) in the height direction of the screen at through interval positions formed by the adjacent upper-layer cross beam (102) and the corresponding adjacent lower-layer cross beam (103).
Preferably, the reinforcing plate (106) and the reinforcing beam (107) are arranged so as to avoid the installation position of the spring seat (3).
Preferably, the reinforcing plate (106) adopts a plate-shaped structure with a plurality of hollowed-out parts; wherein, the fretwork portion is rectangular structure.
Preferably, the two hollowed-out parts formed on the reinforcing plate (106) are respectively a first hollowed-out part (A) and a second hollowed-out part (B); the first hollowed-out parts (A) and the second hollowed-out parts (B) are arranged periodically; the first hollowed-out part (A) is positioned outside the end part of the upper-layer beam (102) or the lower-layer beam (103), and is smaller than the area of an end flange of the upper-layer beam (102) or the lower-layer beam (103); the area of the second hollowed-out part (B) is larger than that of the first hollowed-out part (A).
Preferably, the reinforcement beam (107) has a sealing structure and is riveted and fixed outside the side plate (101);
the length of the stiffening beam (107) exceeds the distance from the central line of the upper beam (102) to the central line of the corresponding lower beam (103), and does not exceed the contour height between the upper extension edge of the upper beam (102) to the lower extension edge of the lower beam (103).
Preferably, the stiffening beam (107) is a U-shaped bent plate structure with two sides provided with vertical folds, and the vertical folds are provided with connecting screw holes for being in threaded connection with the side plates (101).
Preferably, the stiffening beam (107) is of a sealed rectangular tubular structure, and a connecting screw hole is formed in an inner side plate of the rectangular tubular structure; the outer side plate of the rectangular tubular structure is provided with an operation port.
Preferably, the upper layer beam (102) and the lower layer beam (103) have the same structure and comprise rectangular square tubes, two ends of each rectangular square tube are perpendicularly and outwards provided with integral extension edges, the extension edges are in vertical axisymmetry, and the extension edges are provided with connecting holes for connecting with the side plates (101);
and a plurality of arc reinforcing rib plates are arranged between the lower end surfaces of the two ends of the rectangular square tube and the extension edge and are used for reinforcing connection of the extension edge and the end part of the cross beam.
Preferably, the spring seat (3) comprises a base (301), a spring element (302), a wedge box (303) and a connecting assembly (304);
wherein the connecting component (304) comprises a C-shaped bending piece (3041) and a beak-shaped special-shaped steel plate (3042);
the C-shaped bending piece (3041) comprises a back plate (a), a top flat plate (b) and a bottom flat plate (C), wherein the top flat plate (b) and the bottom flat plate (C) are integrally formed with the back plate (a);
the backboard (a) is fixed with the side board (101); the top flat plate (b) is provided with a plurality of through holes along the length direction; -assembling one said beak shaped profiled steel sheet (3042) per said through hole; the lower part of the beak-shaped special-shaped steel plate (3042) is of a plate-shaped structure, and the plate-shaped structure penetrates through the through hole and is fixed with the surface of the backboard (a) in a contact manner; the top of the beak-shaped special-shaped steel plate (3042) is in an arc-shaped hook structure, and the arc-shaped hook structure is pressed on the upper surface of the top flat plate (b) and is fixed with the upper surface of the top flat plate (b);
the wedge box (303) is arranged below the top flat plate (b) and is fixed with the lower surface of the top flat plate (b); the top of the spring element (302) is connected with the inside of the wedge box (303), and the bottom of the spring element (302) is provided with the base (301).
Preferably, the device also comprises a lifting beam (104); the lifting beam (104) is connected between the two side plates (101) and is positioned above the upper-layer cross beam (102).
The heavy double-layer straight line screen provided by the invention has the following advantages:
1. on the basis of improving the beam structure, the invention strengthens the side plate of the screen by using the strengthening beam of the sealing structure arranged along the height direction of the screen, has better section moment of inertia than that of the opening type strengthening structure, has large bending resistance and difficult deformation, greatly improves the integral strength of the screen, and solves the technical problem of side swing of the lower side plate of the heavy double-layer linear screen with large size or large treatment capacity.
2. The invention adopts the reinforcing plates arranged along the length direction of the screen to reinforce the side plates of the screen, in particular to reinforce the contact position of the side plates of the screen and the end face of the cross beam, thereby further improving the integral strength of the screen.
3. The invention simultaneously strengthens the spring seat, improves the energy storage effect when the screen machine vibrates and reduces the vibration of the screen machine to the foundation, avoids the damage when the screen machine vibrates, and ensures that the performance of the whole machine is better.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a heavy double-deck rectilinear screen provided by the invention;
FIG. 2 is a schematic diagram of a screen frame according to the present invention;
FIG. 3 is a schematic view of a beam structure according to the present invention;
fig. 4 is a schematic structural view of a U-shaped bent plate-shaped reinforcing beam provided by the invention;
fig. 5 is a schematic structural view of a rectangular tubular reinforcing beam provided by the invention;
FIG. 6 is a schematic structural view of a reinforcing plate according to the present invention;
FIG. 7 is a schematic view of a spring seat according to the present invention;
fig. 8 is a schematic structural view of a connection assembly in a spring seat according to the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention aims to provide a heavy double-layer straight line screen, which is characterized in that on the basis of improving a beam structure, a reinforcing beam and a reinforcing plate of a sealing structure are utilized to respectively reinforce the side plate of the screen in the length direction and the height direction, so that the integral strength of the screen is improved, vibration of the screen to a foundation is reduced through a spring seat, and the technical problem that the lower side plate of the heavy double-layer straight line screen with large size or large treatment capacity is easy to damage is solved.
Referring to fig. 1 and 2, the present invention provides a heavy double deck rectilinear screen comprising: the screen frame 1, the screen surface 2, the spring seat 3, the vibration exciter 4 and the motor 5;
the screen frame 1 comprises side plates 101, an upper layer beam 102, a lower layer beam 103, an excitation beam 105, a reinforcing plate 106 and a reinforcing beam 107;
the number of the side plates 101 is two, and the side plates are oppositely arranged left and right; at the top between the two side plates 101, an excitation beam 105 is installed; the vibration excitation beam 105 is used for installing the vibration exciter 4, and the vibration exciter 4 generates vibration excitation force under the drive of the motor 5;
on the outer side of each side plate 101, a spring seat 3 is installed;
a plurality of upper cross beams 102 are installed between the two side plates 101 and below the excitation beam 105 in the longitudinal direction of the screen; a space is arranged between two adjacent upper cross beams 102; the surface of each upper layer beam 102 is fixedly provided with a screen surface 2 positioned on the upper layer through a connecting piece;
a lower beam 103 is arranged between the two side plates 101 and just below each upper beam 102; the surface of each lower layer beam 103 is fixedly provided with a screen surface 2 positioned at the lower layer;
a reinforcing plate 106 which is fixedly attached to the outer side of each side plate 101 and is positioned at a height position corresponding to the end face of each upper layer beam 102 so as to cover in the longitudinal direction of the screen; the reinforcing plate 106 located at the lower layer is fixedly attached to the end surface of each lower layer beam 103 by covering the lower layer beam along the longitudinal direction of the screen.
According to the heavy double-layer linear screen provided by the invention, the motor 5 drives the vibration exciter 4 to vibrate to generate exciting force, the exciting force is transmitted to the cross beam through the side plate 101 and then transmitted to the screen surface 2 through the cross beam, so that the screen surface 2 is driven to vibrate, and the screening effect is realized. Through the spring holder 3 of curb plate 101 both sides, energy storage effect and reduction screen(s) are in the time of realizing improving the screen(s) vibration to the vibration of ground, damage when avoiding the screen(s) vibration.
The invention designs the reinforcing plate 106 and the reinforcing beam 107 to effectively reinforce the side plates and designs the spring seat 3 to effectively reduce the vibration of the screen to the foundation aiming at the problems of large lateral swing deformation and easy damage of the side plates of the large screen.
The main components are described in detail below:
reinforcing plate 106 (one)
And the reinforcing plate 106 is avoided at the joint of the spring seat 3 and the side plate of the screening machine. A reinforcing plate 106 which is fixedly attached to the outer side of each side plate 101 and is positioned at a height position corresponding to the end face of each upper layer beam 102 so as to cover in the longitudinal direction of the screen; the reinforcing plate 106 located at the lower layer is fixedly attached to the end surface of each lower layer beam 103 by covering the lower layer beam along the longitudinal direction of the screen. The structure and number of the reinforcing plates 106 can be designed according to the structure of the screening machine and the requirements of the use case.
For example, as shown in fig. 6, the reinforcing plate 106 may have a plate-like structure with a plurality of hollowed-out portions; the hollowed-out parts are of rectangular structures and can be arranged at intervals. Meanwhile, the upper end and the lower end of each reinforcing plate are additionally provided with strip angle steel or channel steel parallel to the reinforcing plates, so that the reinforcing plates are further reinforced. The number of the hollowed-out parts and the angle steel can be designed and adjusted according to the requirements of the screen structure and the service condition.
As a specific implementation manner, the hollowed-out portions formed on the reinforcing plate 106 include two types, as shown in fig. 6, a first hollowed-out portion a and a second hollowed-out portion B respectively; the first hollowed-out part A and the second hollowed-out part B are arranged periodically; the first hollowed-out part A is positioned outside the end part of the upper beam 102 or the lower beam 103 and is smaller than the area of the end flange of the upper beam 102 or the lower beam 103; the area of the second hollowed-out part B is larger than that of the first hollowed-out part A. The first hollowed-out part A and the second hollowed-out part B are arranged, so that the self weight of the structure is reduced, and the installation of each component is convenient; the contact position of the cross beam and the side plate can be effectively reinforced.
(II) reinforcing beam 107
On the outer side of each side plate 101, reinforcing beams 107 are fixedly installed in the height direction of the screen at through-spaced positions formed by the adjacent upper cross members 102 and the corresponding adjacent lower cross members 103. The reinforcement beam 107 is retracted from the installation position of the spring seat 3.
The reinforcing beam 107 is of a sealed structure, is provided with a screw hole, and is riveted and fixed outside the side plate 101;
the length of the stiffening beam 107 exceeds at least the distance from the centerline of the upper beam 102 to the centerline of the corresponding lower beam 103 and does not exceed the profile height between the upper extension of the upper beam 102 to the lower extension of the lower beam 103.
Specifically, as shown in fig. 4, the stiffening beam 107 has a U-shaped bent plate structure with vertical folds at both sides, and connection screw holes for threaded connection with the side plates 101 are uniformly formed in the vertical folds.
As shown in fig. 5, the reinforcement beam 107 may also be a sealed rectangular tubular structure, where the inner side plate of the rectangular tubular structure is provided with a connecting screw hole; the outer side plate of the rectangular tubular structure is provided with an operation port, so that the operation is convenient.
Aiming at the structural characteristics of the side plate of the screening machine, the side plate is doubly reinforced, the side plate is effectively reinforced through the reinforcing plate 106 which is covered and attached and fixed along the length direction of the screening machine and the reinforcing beam 107 which is arranged along the height direction of the screening machine, and the problems of side plate damage and side swing are effectively solved through the double matching action of the reinforcing plate 106 and the reinforcing beam 107.
(III) Cross beam
The upper layer cross beams 102 and the lower layer cross beams 103 are multiple, and the multiple upper layer cross beams 102 are arranged periodically along the horizontal direction; the lower beam 103 and the upper beam 102 are disposed opposite to each other up and down.
The novel beam structure is adopted, the upper beam 102 and the lower beam 103 have the same structure, and as shown in fig. 3, the novel beam structure comprises rectangular square tubes, and the range of the height-width ratio is 1-1.8. Two ends of the rectangular square tube are vertically and outwards provided with integral extension edges which are vertically axisymmetric, and the extension edges are provided with connecting holes for connecting with the side plates 101; the device is used for fixedly connecting the cross beam and the side plate of the screening machine.
A plurality of arc reinforcing rib plates are arranged between the lower end surfaces of the two ends of the rectangular square tube and the extension edge and are used for reinforcing and connecting the extension edge and the end part of the beam.
(IV) spring seat 3
The screen frame 1 and the screen surface 2 form a screen box, and the spring seat 3 is arranged on two sides of the screen frame 1 and plays a role in supporting and connecting the screen box.
As shown in fig. 7 and 8, the spring seat 3 includes a base 301, a spring element 302, a wedge box 303, and a connection assembly 304;
the connecting component 304 is used for connecting the wedge box 303 and the screening machine side plate, is an integrated connecting component, adopts a reinforced and improved design and comprises a C-shaped bending piece 3041 and a beak-shaped special-shaped steel plate 3042;
the C-shaped bending piece 3041 is a twice-bent C-shaped bending piece, and comprises a back plate a, a top flat plate b and a bottom flat plate C which are integrally formed with the back plate a; wherein the width of the top flat plate b is wider than the width of the bottom flat plate c;
the backboard a is fixed with the side plate 101; the top flat plate b is provided with a plurality of through holes along the length direction; each through hole is provided with a beak-shaped special-shaped steel plate 3042; therefore, the number of the beak shaped steel plates 3042 is plural, and the plurality of beak shaped steel plates 3042 are fixedly connected to the C shaped bending member 3041 and are arranged in parallel to each other;
the lower part of the beak-shaped special-shaped steel plate 3042 is of a flat plate structure, in particular a trapezoid flat plate structure, and the flat plate structure penetrates through the through hole and is fixed in contact with the surface of the backboard a, for example, is fixed by welding; the top of the beak shaped steel plate 3042 is in an arc hook structure, and the arc hook structure is pressed on the upper surface of the top plate b and fixed with the upper surface of the top plate b, for example, welded and fixed; as a specific implementation, the ratio of the width to the height of the arcuate hook structure is in the range of 2.5 to 3.
The wedge box 303 is arranged below the top flat plate b and is fixed with the lower surface of the top flat plate b; the top of the spring element 302 is connected to the inside of the wedge box 303 and the bottom of the spring element 302 mounts the base 301. Wherein, the spring elements 302 are arranged in a plurality of groups, the number and the compression amount of the spring elements 302 are designed and adjusted according to the weight of the vibrating screen, and the wedge box 303 is internally provided with a guide part for guiding and limiting the expansion and contraction of the spring elements.
The principle of the spring seat 3 is as follows:
because the side plate of the screening machine is fixed with the connecting component 304, when the screening machine vibrates, vibration force is transmitted to the connecting component 304 to drive the connecting component 304 to vibrate up and down;
since the connection assembly 304 is fixed to the wedge box 303, when the connection assembly 304 vibrates, vibration force is transmitted to the wedge box 303 to drive the wedge box 303 to vibrate up and down;
since the wedge box 303 is connected with the base 301 through the spring element 302, the vibration of the wedge box 303 is buffered through the spring element 302, and the vibration of the screening machine to the foundation is effectively reduced.
Through the design of the spring seat 3, particularly the structural design of the connecting component 304, the vibration force of the screening machine can be effectively transmitted to the wedge box through verification, so that the vibration of the screening machine to the foundation can be effectively reduced.
(V) hanging beam 104
Further comprising a lifting beam 104; the lifting beam 104 is connected between the two side plates 101 and is located above the upper beam 102.
The integral structure of the invention is applicable to all vibrating screens with two adjacent layers of fixed screen surfaces/beams, namely, the vibrating screens are not limited to heavy double-layer straight screens. When in use, the device is installed according to actual conditions, and comprises a supporting mode of a driving mode and a spring seat and an inclination angle of the screening machine.
Two specific embodiments are described below:
embodiment one:
the present invention is best designed as a heavy double deck rectilinear screen as shown in figure 1.
Four groups of spring seats are symmetrically arranged on two sides of the linear screen box; two excitation beams are arranged at the top of the screen frame, and three sets of vibration exciters are arranged on each excitation beam, so that six sets of vibration exciters are arranged in total, and two sets of motors are arranged in a matched mode. The beam aspect ratio was 1.6.
In this embodiment, the junction that the spring holder was dodged to the curb plate outside and the screen machine curb plate is equipped with a plurality of reinforcing plates, the reinforcing plate covers and laminating is fixed in the upper beam of reel and the position that lower floor's crossbeam is located.
The reinforcing plate adopts a plate-shaped structure with a rectangular hollowed-out part in the middle, and the hollowed-out parts are arranged at the positions of two ends of the rectangular square tube of the corresponding cross beam and between adjacent cross beams at intervals. The upper end and the lower end of each reinforcing plate are additionally provided with strip angle steel parallel to the reinforcing plates, so that the reinforcing plates are further reinforced.
The positions of the outer sides of the side plates of the screening machine, the upper cross beams and the lower cross beams corresponding to the intervals are provided with stiffening beams along the vertical direction, and the stiffening beams also avoid the joints of the spring seats and the side plates of the screening machine.
The stiffening beam adopts a U-shaped bending plate-shaped sealing structure with vertical folds at two sides. Screw holes are formed in the vertical folded edges of the two sides of the reinforcing beam and are fixed on the side plates through riveting. The length of the stiffening beam is designed to be slightly smaller than the distance between the lower extension edge of the strip angle steel at the upper end of the outer stiffening plate of the upper beam and the lower extension edge of the strip angle steel at the lower end of the outer stiffening plate of the lower beam, namely the contour height between the upper end face of the upper beam and the lower end face of the corresponding lower beam.
The spring seats are arranged on the outer side of the upper layer beam of the screening machine, 15 spring elements are arranged on each group of spring seats, and the ratio of the width to the height of the arc-shaped part of the special-shaped steel plate is 2.8.
The main parameters related to the screen machine are as follows:
and (3) a driving motor: 380v/50Hz power, 2 x 90kw power, 1485RPM;
vibration exciter: operating revolution 840RPM;
amplitude of: 10mm of
Screening area: 2 x 44m 2 ；
The treatment amount is as follows: 3000t/h;
screening machine: width 6750mm, total length 9633mm, total assembly 72 ton;
inclination angle: 5-10 deg..
Embodiment two:
the invention relates to a heavy three-layer straight line screen. In this embodiment, the stiffening beam outside the side plate of the screening machine is arranged at the corresponding intervals of the upper beam, the middle beam and the lower beam along the vertical direction, that is, the length of the stiffening beam is the contour height between the upper beam upper extension edge and the corresponding lower beam lower extension edge. Other structures are the same as the first embodiment.
The invention has the advantages and effects that:
1. on the basis of improving the beam structure, the invention strengthens the side plate of the screen by using the strengthening beam of the sealing structure arranged along the height direction of the screen, has better section moment of inertia than that of the opening type strengthening structure, has large bending resistance and difficult deformation, greatly improves the integral strength of the screen, and solves the technical problem of side swing of the lower side plate of the heavy double-layer linear screen with large size or large treatment capacity.
2. The invention adopts the reinforcing plates arranged along the length direction of the screen to reinforce the side plates of the screen, in particular to reinforce the contact position of the side plates of the screen and the end face of the cross beam, thereby further improving the integral strength of the screen.
3. The invention simultaneously strengthens the spring seat, improves the energy storage effect when the screen machine vibrates and reduces the vibration of the screen machine to the foundation, avoids the damage when the screen machine vibrates, and ensures that the performance of the whole machine is better.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.
Claims (10)
1. A heavy double deck rectilinear screen comprising: the screen frame (1), a screen surface (2), a spring seat (3), a vibration exciter (4) and a motor (5);
the screen frame (1) comprises side plates (101), an upper layer beam (102), a lower layer beam (103), an excitation beam (105), a reinforcing plate (106) and a reinforcing beam (107);
the number of the side plates (101) is two, and the side plates are oppositely arranged left and right; -mounting said excitation beam (105) on top between two of said side plates (101); the vibration excitation beam (105) is used for installing the vibration exciter (4), and the vibration exciter (4) generates vibration excitation force under the driving of the motor (5);
-mounting the spring seat (3) outside each side plate (101);
a plurality of upper cross beams (102) are arranged between the two side plates (101) and below the exciting beams (105) along the length direction of the screen; a space is arranged between two adjacent upper-layer beams (102); the surface of each upper layer beam (102) is fixedly provided with a screen surface (2) positioned on the upper layer;
one lower-layer cross beam (103) is arranged between the two side plates (101) and right below each upper-layer cross beam (102); the surface of each lower layer cross beam (103) is fixedly provided with a screen surface (2) positioned at the lower layer;
the reinforcing plate (106) which is arranged on the upper layer is covered and attached and fixed on the outer side of each side plate (101) along the length direction of the screen at a height position corresponding to the end face of each upper layer beam (102); covering and attaching the reinforcing plate (106) positioned at the lower layer along the length direction of the screen machine at the height position corresponding to the end surface of each lower layer beam (103);
the reinforcement beam (107) is fixedly mounted on the outer side of each side plate (101) in the height direction of the screen at through interval positions formed by the adjacent upper-layer cross beam (102) and the corresponding adjacent lower-layer cross beam (103).
2. A heavy double deck rectilinear screen according to claim 1, characterized in that the reinforcing plates (106) and the reinforcing beams (107) are clear of the mounting position of the spring seats (3).
3. The heavy double-deck linear screen according to claim 1, characterized in that the reinforcing plate (106) has a plate-like structure provided with a plurality of hollowed-out portions; wherein, the fretwork portion is rectangular structure.
4. A heavy double-deck rectilinear screen according to claim 3, characterized in that the reinforcing plate (106) has two hollowed-out portions, a first hollowed-out portion (a) and a second hollowed-out portion (B), respectively; the first hollowed-out parts (A) and the second hollowed-out parts (B) are arranged periodically; the first hollowed-out part (A) is positioned outside the end part of the upper-layer beam (102) or the lower-layer beam (103), and is smaller than the area of an end flange of the upper-layer beam (102) or the lower-layer beam (103); the area of the second hollowed-out part (B) is larger than that of the first hollowed-out part (A).
5. The heavy double-layer straight line screen according to claim 1, characterized in that the stiffening beams (107) are of a sealed structure and are riveted and fixed outside the side plates (101);
the length of the stiffening beam (107) exceeds the distance from the central line of the upper beam (102) to the central line of the corresponding lower beam (103), and does not exceed the contour height between the upper extension edge of the upper beam (102) to the lower extension edge of the lower beam (103).
6. The heavy double-layer straight line screen according to claim 1, wherein the stiffening beam (107) is a U-shaped bent plate structure with vertical folds at two sides, and the vertical folds are provided with connecting screw holes for threaded connection with the side plates (101).
7. The heavy double-layer straight line screen according to claim 1, characterized in that the stiffening beam (107) is of a sealed rectangular tubular structure, and the inner side plate of the rectangular tubular structure is provided with connecting screw holes; the outer side plate of the rectangular tubular structure is provided with an operation port.
8. The heavy double-layer straight line screen according to claim 1, wherein the upper layer beam (102) and the lower layer beam (103) have the same structure and comprise rectangular square tubes, two ends of each rectangular square tube are vertically outwards provided with integral extension edges, the extension edges are vertically axisymmetric, and the extension edges are provided with connecting holes for connecting with the side plates (101);
and a plurality of arc reinforcing rib plates are arranged between the lower end surfaces of the two ends of the rectangular square tube and the extension edge and are used for reinforcing connection of the extension edge and the end part of the cross beam.
9. A heavy duty double deck rectilinear screen according to claim 1, characterized in that the spring seat (3) comprises a base (301), a spring element (302), a wedge box (303) and a connecting assembly (304);
wherein the connecting component (304) comprises a C-shaped bending piece (3041) and a beak-shaped special-shaped steel plate (3042);
the C-shaped bending piece (3041) comprises a back plate (a), a top flat plate (b) and a bottom flat plate (C), wherein the top flat plate (b) and the bottom flat plate (C) are integrally formed with the back plate (a);
the backboard (a) is fixed with the side board (101); the top flat plate (b) is provided with a plurality of through holes along the length direction; -assembling one said beak shaped profiled steel sheet (3042) per said through hole; the lower part of the beak-shaped special-shaped steel plate (3042) is of a plate-shaped structure, and the plate-shaped structure penetrates through the through hole and is fixed with the surface of the backboard (a) in a contact manner; the top of the beak-shaped special-shaped steel plate (3042) is in an arc-shaped hook structure, and the arc-shaped hook structure is pressed on the upper surface of the top flat plate (b) and is fixed with the upper surface of the top flat plate (b);
the wedge box (303) is arranged below the top flat plate (b) and is fixed with the lower surface of the top flat plate (b); the top of the spring element (302) is connected with the inside of the wedge box (303), and the bottom of the spring element (302) is provided with the base (301).
10. A heavy double deck rectilinear screen according to claim 1, further comprising lifting beams (104); the lifting beam (104) is connected between the two side plates (101) and is positioned above the upper-layer cross beam (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784260.7A CN115025990B (en) | 2022-06-28 | 2022-06-28 | Heavy double-deck straight line sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784260.7A CN115025990B (en) | 2022-06-28 | 2022-06-28 | Heavy double-deck straight line sieve |
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| Publication Number | Publication Date |
|---|---|
| CN115025990A CN115025990A (en) | 2022-09-09 |
| CN115025990B true CN115025990B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210784260.7A Active CN115025990B (en) | 2022-06-28 | 2022-06-28 | Heavy double-deck straight line sieve |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001041944A1 (en) * | 1999-12-09 | 2001-06-14 | Usf Johnson Screens Pty Ltd. | A screening module and a screening assembly including such module |
| CN1446125A (en) * | 2000-08-09 | 2003-10-01 | 路德维希矿石处理设备有限公司 | Screening appartus |
| CN104492694A (en) * | 2014-12-21 | 2015-04-08 | 重庆酱人调味品有限公司 | Cam type pepper screening machine |
| CN215430179U (en) * | 2021-09-06 | 2022-01-07 | 塞尔姆（北京）科技有限责任公司 | Banana type super-large micro powder screening machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2377049C (en) * | 2001-10-29 | 2007-01-30 | Kotaro Nakano | Sieving device |
-
2022
- 2022-06-28 CN CN202210784260.7A patent/CN115025990B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001041944A1 (en) * | 1999-12-09 | 2001-06-14 | Usf Johnson Screens Pty Ltd. | A screening module and a screening assembly including such module |
| CN1446125A (en) * | 2000-08-09 | 2003-10-01 | 路德维希矿石处理设备有限公司 | Screening appartus |
| CN104492694A (en) * | 2014-12-21 | 2015-04-08 | 重庆酱人调味品有限公司 | Cam type pepper screening machine |
| CN215430179U (en) * | 2021-09-06 | 2022-01-07 | 塞尔姆（北京）科技有限责任公司 | Banana type super-large micro powder screening machine |
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|---|---|
| CN115025990A (en) | 2022-09-09 |
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