CN115025990A - Heavy double-layer linear screen - Google Patents
Heavy double-layer linear screen Download PDFInfo
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- CN115025990A CN115025990A CN202210784260.7A CN202210784260A CN115025990A CN 115025990 A CN115025990 A CN 115025990A CN 202210784260 A CN202210784260 A CN 202210784260A CN 115025990 A CN115025990 A CN 115025990A
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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 linear sieve, which comprises: the screen comprises a screen frame, a screen surface, a spring seat, a vibration exciter and a motor; the screen frame comprises side plates, an upper layer cross beam, a lower layer cross beam, an excitation beam, a reinforcing plate and a reinforcing beam. Has the advantages that: 1. according to the invention, on the basis of improving the beam structure, the reinforcing beam of the sealing structure arranged along the height direction of the screen machine is used for reinforcing the side plate of the screen machine, the section inertia moment of the reinforcing beam is better than that of an open reinforcing structure, the bending resistance coefficient is large, the reinforcing beam is not easy to deform, the integral strength of the screen machine is greatly improved, and 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 is solved. 2. According to the invention, the reinforcing plate arranged along the length direction of the screening machine is adopted to reinforce the side plate of the screening machine, particularly the contact position of the side plate of the screening machine and the end surface of the cross beam is reinforced, and the overall strength of the screening machine is improved. 3. Strengthen the design to the spring holder, energy storage effect and reduction sieve machine are to the vibration of ground when improving the sieve machine vibration, damage when avoiding the sieve machine vibration for the complete machine performance is more excellent.
Description
Technical Field
The invention relates to a linear sieve, in particular to a heavy double-layer linear sieve.
Background
The linear vibrating screen is a vibrating screen with a screen box and a material motion track being straight lines or similar straight lines in a longitudinal section perpendicular to a screen surface, has the advantages of good screening effect, large handling capacity, simple structure, low energy consumption, low noise, good sealing performance, convenience in maintenance and the like, and is widely applied to material grading, dewatering, desliming and medium removing operations in the industries of coal, water and electricity, mines 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 increasing, and domestic enterprises begin to research, develop and produce heavy linear vibrating screens, mainly relating to aspects such as large-size screening machines/screening surfaces and double-layer or multi-layer screening machines. But the current ubiquitous screening effect of this type of screen (ing) machine is not high, the quality of screen (ing) machine is poor scheduling problem, and more technical problems such as crossbeam or curb plate fracture, sieve damage, the side pendulum of screen (ing) machine lower floor appear simultaneously.
The analysis shows that the width of the screen surface influences the deflection deformation of a cross beam of the screening machine, the longer the whole screening machine is, the larger the transverse swinging deformation of the side plate is, and the increase of the transverse swinging deformation can not only influence the screening effect, such as reducing the screening efficiency and precision, but also cause the damage of parts of the screening machine due to the serious swinging deformation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a heavy double-layer linear sieve which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
the invention provides a heavy double-layer linear sieve, which comprises: the screen comprises a 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 cross beam (102), a lower layer cross 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 arranged oppositely from left to right; mounting the excitation beam (105) on the top between the two side plates (101); the excitation beam (105) is used for mounting the exciter (4), and the exciter (4) generates an excitation force under the driving of the motor (5);
mounting the spring seat (3) on the outer side of each side plate (101);
a plurality of upper-layer cross beams (102) are arranged between the two side plates (101) and below the excitation beam (105) along the length direction of the screen; a space is reserved between every two adjacent upper-layer cross beams (102); the surface of each upper-layer cross beam (102) is fixedly installed on the screen surface (2) on the upper layer;
one lower-layer cross beam (103) is arranged and installed between the two side plates (101) and is positioned 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) positioned on the upper layer is covered, attached and fixedly installed on the outer side of each side plate (101) along the length direction of the screen machine at the height position corresponding to the end surface of each upper-layer cross beam (102); the reinforcing plates (106) positioned at the lower layer are covered, attached and fixedly installed along the length direction of the screening machine at the height positions corresponding to the end surfaces of the lower-layer cross beams (103);
and the reinforcing beam (107) is fixedly arranged at the outer side of each side plate (101) and at the through interval position formed by the adjacent upper-layer cross beam (102) and the corresponding adjacent lower-layer cross beam (103) along the height direction of the screen machine.
Preferably, the reinforcement plate (106) and the reinforcement beam (107) are arranged so as to avoid the installation position of the spring seat (3).
Preferably, the reinforcing plate (106) is of a plate-shaped structure provided with a plurality of hollow parts; wherein, the hollow-out part is of a rectangular structure.
Preferably, the reinforcing plate (106) is provided with two hollow parts, namely a first hollow part (A) and a second hollow part (B); the first hollow parts (A) and the second hollow parts (B) are arranged periodically; the first hollowed-out part (A) is positioned outside the end part of the upper-layer cross beam (102) or the lower-layer cross beam (103), and the area of the first hollowed-out part (A) is smaller than that of the end flange of the upper-layer cross beam (102) or the lower-layer cross beam (103); the area of the second hollow-out part (B) is larger than that of the first hollow-out part (A).
Preferably, the reinforcing beam (107) is of a sealing structure and is riveted and fixed on the outer surface of the side plate (101);
the length of the reinforcing beam (107) exceeds the distance from the center line of the upper-layer cross beam (102) to the center line of the corresponding lower-layer cross beam (103) and does not exceed the profile height from the upper extending edge of the upper-layer cross beam (102) to the lower extending edge of the lower-layer cross beam (103).
Preferably, the reinforcing beam (107) is of a U-shaped bent plate-shaped structure with vertical folded edges at two sides, and the vertical folded edges are provided with connecting screw holes for being in threaded connection with the side plates (101).
Preferably, the reinforcing beam (107) is of a sealed rectangular tubular structure, and an 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 opening.
Preferably, the upper-layer cross beam (102) and the lower-layer cross beam (103) have the same structure and respectively comprise a rectangular square tube, two ends of the rectangular square tube are vertically and outwards provided with integrated extending edges which are symmetrical in a vertical axis mode, and the extending edges are provided with connecting holes used for being connected 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 pipe and the extending edge and used for reinforcing and connecting the extending 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);
the connecting component (304) comprises a C-shaped bending piece (3041) and a bird mouth-shaped special-shaped steel plate (3042);
the C-shaped bending piece (3041) comprises a back plate (a), and a top flat plate (b) and a bottom flat plate (C) which are integrally formed with the back plate (a);
the back plate (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 one beak-shaped special-shaped steel plate (3042); the lower part of the bird-beak-shaped special-shaped steel plate (3042) is of a flat structure, and the flat structure penetrates through the through hole and is fixedly contacted with the surface of the back plate (a); the top of the bird's beak-shaped special-shaped steel plate (3042) is of 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 linear sieve provided by the invention has the following advantages:
1. according to the invention, on the basis of improving the beam structure, the reinforcing beam with the sealing structure arranged along the height direction of the screen machine is used for reinforcing the side plate of the screen machine, the inertia moment of the cross section of the reinforcing beam is better than that of an open reinforcing structure, the bending resistance coefficient is large, the reinforcing beam is not easy to deform, the integral strength of the screen machine is greatly improved, and 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 is solved.
2. The reinforcing plate arranged along the length direction of the screening machine is adopted to reinforce the side plate of the screening machine, particularly the contact position of the side plate of the screening machine and the end surface of the cross beam is reinforced, and the integral strength of the screening machine is further improved.
3. The invention simultaneously carries out reinforced design on the spring seat, improves the energy storage effect when the screening machine vibrates, reduces the vibration of the screening machine to the foundation, avoids the damage when the screening machine vibrates, and ensures that the performance of the whole machine is better.
Drawings
FIG. 1 is a schematic view of the overall structure of a heavy double-deck linear screen according to the present invention;
FIG. 2 is a schematic structural view of a screen frame according to the present invention;
FIG. 3 is a schematic structural view of a cross beam provided by the present invention;
FIG. 4 is a schematic structural view of a U-shaped bent plate-shaped reinforcing beam provided by the present invention;
FIG. 5 is a schematic view of a rectangular tubular reinforcement beam according to the present invention;
FIG. 6 is a schematic structural view of a reinforcing plate provided in the present invention;
FIG. 7 is a schematic structural view of a spring seat provided by the present invention;
fig. 8 is a schematic structural view of a connection assembly in a spring seat provided by the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present 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 merely illustrative of the invention and do not limit the invention.
The invention aims to provide a heavy double-layer linear sieve, 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 side plates of a sieving machine in the length direction and the height direction, so that the overall strength of the sieving machine is improved, the vibration of the sieving machine on a foundation is reduced through a spring seat, and the technical problem that the lower side plate of the heavy double-layer linear sieve with large size or large handling capacity is easy to damage is solved.
Referring to fig. 1 and 2, the present invention provides a heavy double-deck linear screen, comprising: the screen comprises a 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 arranged oppositely left and right; on the top between the two side plates 101, an excitation beam 105 is mounted; the vibration beam 105 is used for mounting the vibration exciter 4, and the vibration exciter 4 generates an exciting force under the driving of the motor 5;
on the outer side of each side plate 101, a spring seat 3 is mounted;
a plurality of upper-layer cross beams 102 are arranged between the two side plates 101 and below the excitation beam 105 along the length direction of the screening machine; a space is reserved between every two adjacent upper-layer cross beams 102; the surface of each upper-layer cross beam 102 is fixedly installed on the screen surface 2 on the upper layer through a connecting piece;
a lower-layer beam 103 is arranged between the two side plates 101 and is positioned right below each upper-layer beam 102; the surface of each lower-layer cross beam 103 is fixedly provided with a screen surface 2 positioned at the lower layer;
a reinforcing plate 106 which is arranged at the upper layer is covered, adhered and fixedly arranged at the outer side of each side plate 101 and at the height position corresponding to the end surface of each upper layer beam 102 along the length direction of the screen machine; reinforcing plates 106 located in the lower layer are fixedly attached to cover the end faces of the lower-layer cross members 103 in the longitudinal direction of the screen.
According to the heavy double-layer linear sieve provided by the invention, the motor 5 drives the vibration exciter 4 to vibrate to generate an exciting force, the exciting force is transmitted to the cross beam through the side plate 101 and then transmitted to the sieve surface 2 through the cross beam, so that the sieve surface 2 is driven to vibrate, and the sieving effect is realized. Through the spring holder 3 of curb plate 101 both sides, energy storage effect and reduction sieve machine are to the vibration of ground when realizing improving the sieve machine vibration, damage when avoiding the sieve machine vibration.
Aiming at the problems that a side plate of a large-scale screening machine is large in transverse swing deformation and easy to damage, the invention designs the reinforcing plate 106 and the reinforcing beam 107 to effectively reinforce the side plate, and designs the spring seat 3 to effectively reduce vibration of the screening machine to a foundation.
The following details the main components:
reinforcing plate (I) 106
And the reinforcing plate 106 avoids the joint of the spring seat 3 and the side plate of the screen machine. A reinforcing plate 106 which is arranged at the upper layer is covered, attached and fixedly arranged at the outer side of each side plate 101 and at the height position corresponding to the end surface of each upper-layer cross beam 102 along the length direction of the screen machine; reinforcing plates 106 located in the lower layer are fixedly attached to cover the end faces of the lower-layer cross members 103 in the longitudinal direction of the screen. The structure and number of the reinforcing plates 106 can be designed according to the requirements of the structure and the use condition of the screening machine.
For example, as shown in fig. 6, the reinforcing plate 106 may have a plate-like structure with a plurality of hollowed-out portions; wherein, the hollow-out part or be the rectangle structure, but the interval sets up. Meanwhile, strip-shaped angle steel or channel steel parallel to the reinforcing plate is additionally arranged at the upper end and the lower end of each section of reinforcing plate, and further reinforcement is performed. The number of the hollow-out parts and the angle steels can be designed and adjusted according to the requirements of the structure and the use condition of the screening machine.
As a specific implementation manner, the two hollow-out portions formed on the reinforcing plate 106 include a first hollow-out portion a and a second hollow-out portion B, as shown in fig. 6; the first hollow parts A and the second hollow parts B are arranged periodically; the first hollow-out part A is positioned outside the end part of the upper-layer beam 102 or the lower-layer beam 103, and the area of the first hollow-out part A is smaller than that of the end flange of the upper-layer beam 102 or the lower-layer beam 103; the area of the second hollow-out part B is larger than that of the first hollow-out part A. The first hollow-out part A and the second hollow-out part B are arranged, so that the self-weight of the structure is reduced, and the installation of each component is facilitated; 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, and at the through-space position formed by the adjacent upper cross member 102 and the corresponding adjacent lower cross member 103, a reinforcing beam 107 is fixedly installed in the height direction of the screen machine. The reinforcing beam 107 avoids the mounting position of the spring seat 3.
The reinforcing beam 107 is of a sealing structure, is provided with a screw hole and is fixed outside the side plate 101 in a riveting way;
the length of the reinforcing beam 107 at least exceeds the distance from the center line of the upper layer cross beam 102 to the center line of the corresponding lower layer cross beam 103, and does not exceed the profile height from the upper extending edge of the upper layer cross beam 102 to the lower extending edge of the lower layer cross beam 103.
Specifically, as shown in fig. 4, the reinforcing beam 107 has a U-shaped bent plate-like structure with vertical flanges at both sides, and the vertical flanges are uniformly provided with connecting screw holes for screw-connecting with the side plates 101.
As shown in fig. 5, the reinforcing beam 107 may also be a closed rectangular tubular structure, in which case, 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 opening, so that the operation is convenient.
Aiming at the structural characteristics of the side plates of the screening machine, the side plates are doubly reinforced by the reinforcing plate 106 which is covered and fixedly attached along the length direction of the screening machine and the reinforcing beam 107 which is arranged along the height direction of the screening machine, the side plates are effectively reinforced by the double cooperation of the reinforcing plate 106 and the reinforcing beam 107, and the problems of side plate damage and side sway are effectively solved.
(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 layer cross beam 103 and the upper layer cross beam 102 are oppositely arranged up and down.
The novel cross beam structure is adopted, the upper-layer cross beam 102 and the lower-layer cross beam 103 are the same in structure and comprise rectangular square tubes as shown in figure 3, and the height-width ratio of the square tubes is 1-1.8. Two ends of the rectangular square tube are vertically and outwards provided with integrated extending edges which are symmetrical in a vertical axis mode, and the extending edges are provided with connecting holes used for being connected with the side plates 101; used for fixedly connecting the cross beam and the side plates of the screening machine.
And a plurality of arc reinforcing rib plates are arranged between the lower end faces of the two ends of the rectangular square tube and the extension edges and used for reinforcing and connecting the extension edges and the end parts of the cross beams.
Screen box is constituteed to reel 1 and sifter 2, and spring holder 3 is installed in 1 both sides of reel, plays the effect of supporting connection 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 connecting assembly 304;
the connecting assembly 304 is used for connecting the wedge box 303 and the side plates of the screening machine and is an integrated connecting assembly, and the connecting assembly is in a reinforced improved design and comprises a C-shaped bending piece 3041 and a bird-beak-shaped special-shaped steel plate 3042;
the C-shaped bending piece 3041 is a C-shaped bending piece bent twice, and includes a back plate a, and a top flat plate b and a bottom flat plate C integrally formed with the back plate a; wherein, the width of the top flat plate b is wider than that of the bottom flat plate c;
the back plate 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 bird's beak-shaped special-shaped steel plate 3042; therefore, the number of the bird's beak shaped deformed steel plates 3042 is plural, and the plural bird's beak shaped deformed steel plates 3042 and the C-shaped bending pieces 3041 are fixedly connected and arranged in parallel;
the lower part of the bird's beak shaped irregular steel plate 3042 is a flat plate structure, specifically a trapezoidal flat plate structure, which passes through the through hole and is fixed in contact with the surface of the back plate a, for example, by welding; the top of the bird's beak shaped deformed steel plate 3042 is an arc hook structure, which is pressed on the upper surface of the top flat plate b and fixed, e.g., welded, to the upper surface of the top flat plate b; as a specific implementation mode, the ratio of the width to the height of the arc hook-shaped structure ranges from 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 is mounted with a base 301. Wherein, spring element 302 sets up multiunit, and the quantity and the compression of spring element 302 carry out the design according to the weight of shale shaker and adjust, and wedge box 303 is inside to be equipped with the guide that guides and the restriction spring element is flexible in it.
The principle of the spring seat 3 is as follows:
because the side plates of the screen machine are fixed with the connecting assembly 304, when the screen machine vibrates, the vibrating force is transmitted to the connecting assembly 304 to drive the connecting assembly 304 to vibrate up and down;
because the connecting assembly 304 and the wedge box 303 are fixed, when the connecting assembly 304 vibrates, the vibration force is transmitted to the wedge box 303 to drive the wedge box 303 to vibrate up and down;
because the wedge box 303 and the base 301 are connected 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 further effectively reduced.
According to the invention, through the design of the spring seat 3, especially the structural design of the connecting component 304, verification proves that the structural form can effectively transmit the vibration force of the screening machine to the wedge box, so that the vibration of the screening machine to the foundation is effectively reduced.
(V) hanging beam 104
Also included are lifting beams 104; the lifting beam 104 is connected between the two side plates 101 and is located above the upper cross beam 102.
The whole structure of the invention is suitable for all vibrating screens with two adjacent layers of fixed screen surfaces/cross beams, namely, the vibrating screens are not limited to heavy double-layer linear screens. Install according to actual conditions during the use, including the support mode of drive and spring holder to and the inclination of screen frame.
Two specific embodiments are described below:
the first embodiment is as follows:
the present invention is best designed as a heavy duty double deck linear screen as shown in figure 1.
Four groups of spring seats are symmetrically arranged on two sides of the screen box of the linear screen; 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, and two sets of motors are arranged in a matched manner. The beam aspect ratio is 1.6.
In this embodiment, the spring holder is dodged in the curb plate outside and the junction of screen frame curb plate is equipped with a plurality of reinforcing plates, the reinforcing plate covers and the laminating is fixed in the upper crossbeam and the lower floor crossbeam position of reel.
The reinforcing plate is of a plate-shaped structure, the middle of the reinforcing plate is provided with a rectangular hollow portion, and the hollow portion is arranged at the positions of two ends of a rectangular square tube of the corresponding cross beam and between the adjacent cross beams at intervals. The upper end and the lower end of each section of reinforcing plate are respectively provided with a strip-shaped angle steel parallel to the reinforcing plate, and further reinforcement is performed.
The positions of the outer side of the screening machine side plate, the upper layer cross beam and the lower layer cross beam corresponding to the intervals are provided with stiffening beams along the vertical direction, and the stiffening beams avoid the joints of the spring seats and the screening machine side plate.
The stiffening beam adopts a U-shaped bent plate-shaped sealing structure with vertical folded edges at two sides. Screw holes are arranged on the vertical folding edges at the two sides of the stiffening beam and are fixed on the side plate by riveting. The stiffening beam length design is slightly less than the distance between the lower limit of the bar angle steel of the outer reinforcing plate upper end of upper crossbeam and the lower limit of the bar angle steel of the outer reinforcing plate lower extreme of lower floor's crossbeam, is the profile height between upper crossbeam up end and the lower terminal surface of the corresponding lower floor's crossbeam promptly.
The spring seat sets up in the sieve machine upper crossbeam outside, and wherein 15 spring elements are established to every group spring seat, and the ratio of the width of shaped steel board arc part and height is 2.8.
The main parameters related to the screening machine are as follows:
driving a motor: power supply is 380v/50Hz, power is 2 x 90kw, and the revolution is 1485 RPM;
vibration exciter: running revolutions 840 RPM;
amplitude: 10mm
Screening area: 2 x 44m 2 ；
Treatment capacity: 3000 t/h;
screening machine: the width is 6750mm, the total length is 9633mm, and the total weight is 72 tons;
inclination angle: 5-10 degrees.
Example two:
the invention is designed as a heavy three-layer linear sieve. In this embodiment, the stiffening beam outside the side plate of the screening machine is arranged at the corresponding interval of the upper layer cross beam, the middle layer cross beam and the lower layer cross beam along the vertical direction, that is, the length of the stiffening beam is the profile height between the upper layer cross beam upper extending edge and the corresponding lower layer cross beam lower extending edge. The other structures are the same as those of the first embodiment.
The invention has the advantages and effects that:
1. according to the invention, on the basis of improving the beam structure, the reinforcing beam with the sealing structure arranged along the height direction of the screen machine is used for reinforcing the side plate of the screen machine, the inertia moment of the cross section of the reinforcing beam is better than that of an open reinforcing structure, the bending resistance coefficient is large, the reinforcing beam is not easy to deform, the integral strength of the screen machine is greatly improved, and 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 is solved.
2. According to the invention, the reinforcing plate arranged along the length direction of the screening machine is adopted to reinforce the side plate of the screening machine, particularly the contact position of the side plate of the screening machine and the end surface of the cross beam is reinforced, and the overall strength of the screening machine is further improved.
3. The invention simultaneously carries out reinforced design on the spring seat, improves the energy storage effect when the screening machine vibrates, reduces the vibration of the screening machine to the foundation, avoids the damage when the screening machine vibrates, and ensures that the performance of the whole machine is better.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (10)
1. A heavy double-deck rectilinear screen, characterized by comprising: the device comprises a 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 cross beam (102), a lower layer cross 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 arranged oppositely left and right; mounting the excitation beam (105) on the top between the two side plates (101); the excitation beam (105) is used for mounting the exciter (4), and the exciter (4) generates an excitation force under the driving of the motor (5);
mounting the spring seat (3) on the outer side of each side plate (101);
a plurality of upper-layer cross beams (102) are arranged between the two side plates (101) and below the excitation beam (105) along the length direction of the screen; a space is reserved between every two adjacent upper-layer cross beams (102); the surface of each upper-layer cross beam (102) is fixedly installed on the screen surface (2) on the upper layer;
one lower-layer cross beam (103) is arranged and installed between the two side plates (101) and is positioned 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) positioned on the upper layer is covered, attached and fixedly installed on the outer side of each side plate (101) along the length direction of the screen machine at the height position corresponding to the end surface of each upper-layer cross beam (102); the reinforcing plates (106) positioned at the lower layer are covered, attached and fixedly installed along the length direction of the screening machine at the height positions corresponding to the end surfaces of the lower-layer cross beams (103);
and the reinforcing beam (107) is fixedly arranged at the outer side of each side plate (101) and at the through interval position formed by the adjacent upper-layer cross beam (102) and the corresponding adjacent lower-layer cross beam (103) along the height direction of the screen machine.
2. A heavy double deck linear screen according to claim 1, characterized in that the reinforcement plate (106) and the reinforcement beam (107) are moved out of the mounting position of the spring seat (3).
3. A heavy duty double deck linear screen according to claim 1, wherein said reinforcing plate (106) is a plate-like structure having a plurality of hollowed-out portions; wherein, the hollow-out part is of a rectangular structure.
4. A heavy duty double deck linear screen according to claim 3 wherein said reinforcing plate (106) has two kinds of hollows, a first hollow (a) and a second hollow (B); the first hollow parts (A) and the second hollow parts (B) are arranged periodically; the first hollowed-out part (A) is positioned outside the end part of the upper-layer cross beam (102) or the lower-layer cross beam (103), and the area of the first hollowed-out part (A) is smaller than that of the end flange of the upper-layer cross beam (102) or the lower-layer cross beam (103); the area of the second hollow-out part (B) is larger than that of the first hollow-out part (A).
5. A heavy duty double deck linear screen according to claim 1 wherein said reinforcement beam (107) is of a closed configuration and is riveted to the outside of said side plate (101);
the length of the reinforcing beam (107) exceeds the distance from the center line of the upper-layer cross beam (102) to the center line of the corresponding lower-layer cross beam (103) and does not exceed the profile height from the upper extending edge of the upper-layer cross beam (102) to the lower extending edge of the lower-layer cross beam (103).
6. The heavy double-layer linear screen is characterized in that the reinforcing beam (107) is of a U-shaped bent plate structure with vertical folded edges at two sides, and the vertical folded edges are provided with connecting screw holes for being in threaded connection with the side plates (101).
7. The heavy double-layer linear screen is characterized in that the reinforcing beam (107) is a closed rectangular tubular structure, and an 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 opening.
8. The heavy double-layer linear sieve as claimed in claim 1, wherein the upper layer cross beam (102) and the lower layer cross beam (103) have the same structure and comprise rectangular square tubes, two ends of each rectangular square tube are vertically and outwardly provided with integrated extending edges, the extending edges are symmetrical in a vertical axis manner, and the extending 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 pipe and the extending edge and used for reinforcing and connecting the extending edge and the end part of the cross beam.
9. A heavy double deck linear 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);
the connecting component (304) comprises a C-shaped bending piece (3041) and a bird mouth-shaped special-shaped steel plate (3042);
the C-shaped bending piece (3041) comprises a back plate (a), and a top flat plate (b) and a bottom flat plate (C) which are integrally formed with the back plate (a);
the back plate (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 one beak-shaped special-shaped steel plate (3042); the lower part of the bird-beak-shaped special-shaped steel plate (3042) is of a flat structure, and the flat structure penetrates through the through hole and is fixedly contacted with the surface of the back plate (a); the top of the bird's beak-shaped special-shaped steel plate (3042) is of 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 linear screen according to claim 1, further comprising 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).
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115025990A true CN115025990A (en) | 2022-09-09 |
| CN115025990B CN115025990B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210784260.7A Active CN115025990B (en) | 2022-06-28 | 2022-06-28 | Heavy double-deck straight line sieve |
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| Country | Link |
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Citations (5)
| 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 |
| US20030080030A1 (en) * | 2001-10-29 | 2003-05-01 | Taniko Corporation | Sieving device |
| 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 |
-
2022
- 2022-06-28 CN CN202210784260.7A patent/CN115025990B/en active Active
Patent Citations (5)
| 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 |
| US20030080030A1 (en) * | 2001-10-29 | 2003-05-01 | Taniko Corporation | Sieving device |
| 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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| Publication number | Publication date |
|---|---|
| CN115025990B (en) | 2023-08-29 |
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