A fast assembly linear vibrating screen

Abstract

The present invention provides a fast-assembly linear vibrating screen, including a screen box, a support platform fixed on the bottom edge of the screen box, a plurality of stacked grids arranged between the support platform and the fixed assembly in the screen box, a pressing frame arranged on the upper part of the screen box, the pressing frame pressed on the grid by a wedge, a screen covered on the grid, the edge of the screen clamped between adjacent grids or between the grid and the pressing frame; an opening is arranged at one end of the screen box, a sealing head is arranged on the opening, a discharge channel for overscreen is arranged on the sealing head corresponding to the upper screen surface of the screen, a discharge channel for underscreen is arranged on the sealing head corresponding to the inner bottom surface of the screen box, and a feed port is arranged on the top surface of the other end of the screen box. The present invention can not only stabilize the pressing state of the grid, but also effectively improve the speed of replacing the grid; under the premise of ensuring the service life and screening effect, the screen fixing structure is greatly simplified and simple to make, so that the production efficiency is greatly improved and the labor cost of replacing the grid is reduced.

Description

Technical Field

[0001] The invention relates to screening equipment, in particular to a fast-assembly linear vibrating screen. Background Art

[0002] The common vibration screening equipment on the market is currently limited by the structure of the equipment itself, and it is troublesome, time-consuming and labor-intensive to dismantle the grid frame. It takes 1-2 hours to dismantle the grid frame of a large linear screen, and it also requires a large number of people, not just one or two people to complete it. At the same time, it takes up a large space on site, which is inefficient. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a fast-assembly linear vibrating screen.

[0004] A quick-assembly linear vibrating screen, comprising a screen box, a support platform is fixedly arranged at the bottom edge of the screen box, a fixing assembly is arranged on the side wall of the upper part of the screen box, the fixing assembly comprises a pressing frame, a wedge block and a clamp, a plurality of wedge blocks are distributed on the pressing frame, a clamp is fixedly arranged at the position corresponding to the wedge block on the screen box, the wedge block is fixed to the screen box by the clamp, the edge of the pressing frame is arranged around the side wall of the screen box and is sealed with the side wall of the screen box, the wedge block is tightly pressed on the pressing frame, a plurality of stacked grid frames are arranged in the screen box between the support platform and the fixing assembly, the grid frames are covered with a screen, and the edge of the screen is clamped between the adjacent grid frames or the grid frames and the pressing frame;

[0005] One end of the screen box is opened, and a head is provided on the opening. The head is detachably fixedly connected to the screen box and sealed with the screen box, an overscreen material discharge channel is provided on the head corresponding to the upper screen surface of the screen, and a underscreen material discharge channel is provided on the head corresponding to the inner bottom surface of the screen box, and a feed port is provided on the top surface of the other end of the screen box.

[0006] Further: the clamp includes a baffle plate and a connecting plate which are perpendicular to each other and fixedly connected, the baffle plate is located on the other side of the wedge block relative to the side wall of the screen box, the baffle plate is stopped on the wedge block, the connecting plate spans over the wedge block and passes through the side wall of the screen box and is fixedly connected to the fixed plate, a positioning bolt is penetrated through the fixed plate and threadedly engaged with the positioning bolt, the inner end of the positioning bolt abuts against the outer wall of the screen box, and a handle is fixedly provided on the outer end of the positioning bolt.

[0007] Further, the inner side surface of the wedge block close to the screen box is arranged parallel to the side wall of the screen box, the angle between the outer side surface of the wedge block in contact with the baffle plate and the inner side surface is in the range of 2°~5°, and the baffle plate is arranged in close contact with the outer side surface; the upper side surface of the wedge block in contact with the connecting plate is arranged obliquely, and the connecting plate is arranged in close contact with the upper side surface, wherein the inclination direction of the wedge block is the same as the vibration direction of the material on the screen.

[0008] Further, the inner edge of the pressure frame close to the side wall of the screen box is folded upward to form a folding plate, one side of the folding plate is in contact with the side wall of the screen box, and the other side of the folding plate is in contact with the inner side surface of the wedge block.

[0009] Further: a rivet nut is provided between the positioning bolt and the fixing plate, the rivet nut is fixedly connected to the fixing plate, the rivet nut is threadedly matched with the positioning bolt, a locking nut is threadedly matched with the outer end of the positioning bolt, and the locking nut is stopped on the rivet nut.

[0010] Further, the connecting plate is inserted into a through hole opened on the screen box, a sealing gasket is sealed on the outside of the through hole, a backing plate is fitted on the outside of the sealing gasket, the connecting plate passes through the sealing gasket and the backing plate, and the positioning bolt abuts against the backing plate.

[0011] Further, the edge of the fixing plate is folded toward the outer side wall of the screen box to form a sealing cover, the cover opening of the sealing cover is close to the outer side wall of the screen box, and the sealing pad and the backing plate are both located in the sealing cover.

[0012] Further, the mesh frame is provided with a screen side plate extending into the screen material discharge channel, the screen side plate is provided along the lower edge of the screen material discharge channel, a first sealing strip is fixedly provided on the lower edge of the screen material discharge channel, the first sealing strip is located below the screen side plate and is in close contact with and sealed to the screen side plate. (The outer end openings of the screen material discharge channel and the screen material discharge channel are both located below the head and are provided downward.)

[0013] Further, one side of the head is hinged on the screen box, and the opposite side of the head is fixedly connected to the screen box through a lock; a second sealing strip is sealed between the head and the screen box, and the second sealing strip is fixedly connected to the head.

[0014] Further, the screen box is of rectangular shape, a vibrating body is fixedly provided at the lower middle part of the screen box, a second opening is provided on the upper surface of the screen box, a box cover is sealed on the second opening, the box cover is detachably fixedly connected to the screen box, a feed port is provided on the other side of the box cover opposite to the head, and the screen box is fixedly connected to the bracket through a shock-absorbing spring.

[0015] Further: the grid includes supporting beams and connecting beams which are fixedly connected to each other and form a frame structure, one side of the grid located at the opening is the connecting beam, the screen side plate is located on the connecting beam 36, the thickness of the connecting beam is less than the thickness of the supporting beam, the supporting beam in the grid is supported on the adjacent grid, and a gap is left between the connecting beam in the grid and the adjacent grid; the edge of the screen is laid on the edge of the grid and located on the upper surface of the connecting beam and the supporting beam, a strip pressure plate is tightly arranged on the edge of the screen, the pressure frame is tightly arranged on the connecting beam, and the strip pressure strip is arranged between the pressure frame and the connecting beam and between adjacent connecting beams, the strip pressure strip is used to fix, press and seal the screen, so as to facilitate the installation, fixing and sealing of the screen; in addition, the connecting beam is fixedly connected between the supporting beams on opposite sides to ensure the structural strength of the grid.

[0016] Beneficial effects of the present invention: the present invention can not only stabilize the compression state of the mesh frame, but also effectively improve the speed of replacing the mesh frame; under the premise of ensuring the service life and screening effect, the screen fixing structure is greatly simplified and simple to make, so that the production efficiency is greatly improved and the labor cost of replacing the mesh frame is reduced; in addition, a detachable head is arranged at one end of the screen box, so that after the clamp releases the wedge block, the head block is opened, and the multi-layer screen and mesh frame can be pulled out, and the structure is simple and easy to operate. Compared with the prior art, when the screen is working, under the action of the clamp, the wedge block is gradually pressed against the side wall of the pressure frame and the screen box to ensure the fixing and sealing effect of the screen. After loosening the positioning bolt, the clamp is loosened, so that it is easy to remove the wedge block, thereby facilitating the disassembly and installation of the screen; the present invention improves the wedge block structure and changes the fixing method thereof, so that the screen is convenient to fix and disassemble in the screen box, thereby improving the production efficiency and later maintenance efficiency of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic cross-sectional view of a local structure in the present invention;

[0019] Figure 3 for Figure 2 A magnified view of the structure in the middle A area;

[0020] Figure 4for Figure 2 A magnified view of the structure in the middle B area;

[0021] Figure 5 It is a front view structural schematic diagram of the wedge block in the present invention;

[0022] Figure 6 It is a schematic diagram of the top view of the wedge block in the present invention;

[0023] Figure 7 It is a schematic diagram of the top view of the clamp in the present invention;

[0024] Figure 8 for Figure 1 A magnified view of the local structure;

[0025] Fig. 9 for Figure 8 A magnified view of the structure of the middle C region.

[0026] In the figure, 1, screen box; 101, fixing assembly; 11, head; 111, discharge channel for screened material; 112, discharge channel for screened material; 113, first sealing strip; 114, second sealing strip; 12, box cover; 121, feed port; 13, vibrating body; 14, shock-absorbing spring; 15, bracket; 16, lock; 17, through hole; 2, screen; 3, grid; 31, pressure frame; 311, folding plate; 32, strip pressure strip; 33, support table; 34, screen side plate; 35, support beam; 36, connecting beam; 4, fixing plate; 5, positioning bolt; 51, handle; 52, rivet nut; 6, clamp; 61, baffle; 62, connecting plate; 7, sealing gasket; 8, pad; 9, wedge; 91, upper side; 92, outer side. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings. The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention. The directional terms such as left, middle, right, top, and bottom in the examples of the present invention are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0028] A fast assembly linear vibrating screen, such as Figure 1 and Figure 2As shown, it includes a screen box 1, a support platform 33 is fixedly provided on the bottom edge of the screen box 1, a fixing assembly 101 is provided on the side wall of the upper part of the screen box 1, the fixing assembly 101 includes a pressing frame 31, a wedge 9 and a clamp 6, a plurality of wedges 9 are distributed on the pressing frame 31, a clamp 6 is fixedly provided at the position corresponding to the wedge 9 on the screen box 1, the wedge 9 is fixed to the screen box 1 by the clamp 6, the edge of the pressing frame 31 is arranged around the side wall of the screen box 1 and is sealed with the side wall of the screen box 1, the wedge 9 is tightly pressed on the pressing frame 31, and a plurality of stacked grid frames 3 are provided between the support platform 33 and the fixing assembly 101 in the screen box 1, the grid frames 3 are covered with a screen 2, and the edge of the screen 2 is clamped between the adjacent grid frames 3 and grid frames 3 or the grid frames 3 and the pressing frame 31;

[0029] Combination Figure 8 As shown, one end of the screen box 1 is opened, and a head seal 11 is provided on the opening. The head seal 11 is detachably fixedly connected to the screen box 1 and sealed with the screen box 1. An overscreen material discharge channel 111 is provided on the head seal 11 corresponding to the upper screen surface of the screen 2, and a underscreen material discharge channel 111 is provided on the head seal 11 corresponding to the inner bottom surface of the screen box 1. A feed port 121 is provided on the top surface of the other end of the screen box 1.

[0030] Combination Figure 3 and Figure 4 As shown, the clamp 6 includes a baffle 61 and a connecting plate 62 which are perpendicular to each other and fixedly connected. The baffle 61 is located on the other side of the wedge block 9 relative to the side wall of the screen box 1, and the baffle 61 is stopped on the wedge block 9. The connecting plate 62 spans over the wedge block 9 and passes through the side wall of the screen box 1 and is fixedly connected to the fixing plate 4. A positioning bolt 5 is penetrated through the fixing plate 4 and threadedly engaged with the positioning bolt 5. The inner end of the positioning bolt 5 abuts against the outer wall of the screen box 1, and a handle 51 is fixedly provided on the outer end of the positioning bolt 5.

[0031] Combination Figure 5 , Figure 6 and Figure 7 As shown, the inner side surface of the wedge block 9 close to the screen box 1 is arranged parallel to the side wall of the screen box 1, the angle between the outer side surface of the wedge block 9 in contact with the baffle 61 and the inner side surface is in the range of 2°~5°, and the baffle 61 is fitted with the outer side surface; the upper side surface of the wedge block 9 in contact with the connecting plate 62 is inclined, and the connecting plate 62 is fitted with the upper side surface, wherein the inclination direction of the wedge block 9 is the same as the vibration direction of the material on the screen 2.

[0032] Combination Figure 3As shown, the inner edge of the pressure frame 31 close to the side wall of the screen box 1 is folded upward to form a folding plate 311, one side of the folding plate 311 is in contact with the side wall of the screen box 1, and the other side of the folding plate 3111 is in contact with the inner side surface of the wedge block 9.

[0033] Combination Figure 3 and Figure 4 As shown, a rivet nut 52 is provided between the positioning bolt 5 and the fixing plate 4, and the rivet nut 52 is fixedly connected to the fixing plate 4, and the rivet nut 52 is threadedly matched with the positioning bolt 5, and a locking nut is threadedly matched with the outer end of the positioning bolt 5, and the locking nut is stopped on the rivet nut 52; the connecting plate 62 is passed through the through hole 17 opened on the screen box 1, and a sealing gasket 7 is sealed on the outer side of the through hole 17, and a pad 8 is fitted on the outer side of the sealing gasket 7, the connecting plate 62 passes through the sealing gasket 7 and the pad 8, and the positioning bolt 5 abuts against the pad 8; the edge of the fixing plate 4 is folded toward the outer side wall of the screen box 1 to form a sealing cover, the cover opening of the sealing cover is close to the outer side wall of the screen box 1, and the sealing gasket 7 and the pad 8 are both located in the sealing cover.

[0034] Combination Figure 8 and Fig. 9 As shown, the mesh frame 3 is provided with a screen side plate 34 extending into the screen material discharge channel 111, and the screen side plate 34 is arranged along the lower edge of the screen material discharge channel 111. A first sealing strip 113 is fixedly arranged on the lower edge of the screen material discharge channel 111, and the first sealing strip 113 is located below the screen side plate 34 and is in close contact with and sealed with the screen side plate 34. The outer end openings of the screen material discharge channel 111 and the screen material discharge channel 112 are both located below the head 11 and are arranged downward; one side of the head 11 is hinged on the screen box 1, and the opposite side of the head 11 is fixedly connected to the screen box 1 through a lock 16; a second sealing strip 114 is sealed between the head 11 and the screen box 1, and the second sealing strip 114 is fixedly connected to the head 11.

[0035] like Figure 1 As shown, the screen box 1 is a rectangular parallelepiped, a vibrating body 13 is fixedly provided at the lower middle part of the screen box 1, a second opening is provided on the upper surface of the screen box 1, a box cover 12 is sealed on the second opening, the box cover 12 is detachably fixedly connected to the screen box 1, a feed port 121 is provided on the other side of the box cover 12 opposite to the head 11, and the screen box 1 is fixedly connected to the bracket 15 through a shock-absorbing spring 14.

[0036] Combination Figure 8As shown, the grid 3 includes support beams 35 and connecting beams 36 which are fixedly connected to each other and form a frame structure. The side of the grid 3 located at the opening is the connecting beam 36, and the screen side plate is located on the connecting beam 36. The thickness of the connecting beam 36 is less than the thickness of the support beam 35. The support beam 35 in the grid 3 is supported on the adjacent grid 3, and a gap is left between the connecting beam 36 in the grid 3 and the adjacent grid 3; the edge of the screen 2 is laid on the edge of the grid 3 and is located on the upper surface of the connecting beam 36 and the support beam 35. A strip pressure plate 32 is pressed on the edge of the screen 2, and the pressure frame 31 is pressed on the connecting beam 36. The strip pressure strip 32 is provided between the pressure frame 31 and the connecting beam 36 and between adjacent connecting beams 36; in addition, the connecting beam 36 is fixedly connected between the support beams 35 on opposite sides.

[0037] The working principle of the present invention is as follows: the material enters the screen box from the feed port on the box cover, and after multiple layers of screening, the material is discharged from the screen box through the screen-up material discharge channel and the screen-down material discharge channel on the head cover. When the mesh frame and the screen need to be cleaned or maintained and replaced, the wedge block is loosened, and then the head cover is opened and the mesh frame and the screen are pulled out from the head cover, and after processing, they are put back into the screen box, and the wedge block is tightened, and then the head cover is closed and locked.

[0038] Compared with the prior art, when the screen is working, under the action of the clamp, the wedge blocks are gradually pressed against the side walls of the pressure frame and the screen box to ensure the fixation and sealing effect of the screen. After loosening the positioning bolts, the clamps are loosened, which makes it easy to remove the wedge blocks, thereby facilitating the disassembly and installation of the screen. The present invention improves the wedge block structure and changes its fixing method, so that the screen is easy to fix and disassemble in the screen box, thereby improving the production efficiency of the vibrating screen and the subsequent maintenance efficiency; the stacking arrangement of the grid makes the structure of the vibrating screen more compact.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fast-assembly linear vibrating screen, characterized in that: The invention comprises a screen box, a support platform is fixedly arranged at the bottom edge of the screen box, a fixing assembly is arranged on the side wall of the upper part of the screen box, the fixing assembly comprises a pressing frame, a wedge block and a clamp, a plurality of wedge blocks are distributed on the pressing frame, a clamp is fixedly arranged at the position corresponding to the wedge block on the screen box, the wedge block is fixed to the screen box by the clamp, the edge of the pressing frame is arranged around the side wall of the screen box and is sealed with the side wall of the screen box, the wedge block is tightly pressed on the pressing frame, and a plurality of wedge blocks are arranged in the screen box between the support platform and the fixing assembly. A plurality of stacked grids are provided, wherein the grids are covered with screens, and the edges of the screens are clamped between adjacent grids or between the grids and a pressure frame; one end of the screen box is provided with an opening, and a sealing head is provided on the opening, and the sealing head is detachably fixedly connected to the screen box and sealed with the screen box, and an overscreen material discharge channel is provided on the sealing head corresponding to the upper screen surface of the screen, and a underscreen material discharge channel is provided on the sealing head corresponding to the inner bottom surface of the screen box, and a feed port is provided on the top surface of the other end of the screen box; The clamp includes a baffle and a connecting plate that are perpendicular to each other and fixedly connected. The baffle is located on the other side of the wedge block relative to the side wall of the screen box, and the baffle is stopped on the wedge block. The connecting plate spans over the wedge block and passes through the side wall of the screen box and is fixedly connected to the fixing plate. A positioning bolt is penetrated through the fixing plate and threadedly cooperates with the positioning bolt. The inner end of the positioning bolt abuts against the outer wall of the screen box, and a handle is fixedly provided on the outer end of the positioning bolt. The inner side surface of the wedge block close to the screen box is parallel to the side wall of the screen box. The angle between the outer side surface of the wedge block that contacts the baffle and the inner side surface is in the range of 2°~5°, and the baffle is fitted with the outer side surface; the upper side surface of the wedge block that contacts the connecting plate is inclined, and the connecting plate is fitted with the upper side surface, wherein the inclination direction of the wedge block is the same as the vibration direction of the material on the screen; the inner edge of the pressure frame that is close to the side wall of the screen box is folded upward to form a folding plate, one side of the folding plate is fitted with the side wall of the screen box, and the other side of the folding plate is fitted with the inner side surface of the wedge block.

2. A quick assembly linear vibrating screen according to claim 1, characterized in that: A rivet nut is provided between the positioning bolt and the fixing plate. The rivet nut is fixedly connected to the fixing plate. The rivet nut is threadedly matched with the positioning bolt. A locking nut is threadedly matched with the outer end of the positioning bolt, and the locking nut is stopped on the rivet nut.

3. A quick assembly linear vibrating screen according to claim 1, characterized in that: The connecting plate is inserted into a through hole opened on the screen box, a sealing gasket is sealed on the outside of the through hole, a backing plate is fitted on the outside of the sealing gasket, the connecting plate passes through the sealing gasket and the backing plate, and the positioning bolt abuts against the backing plate.

4. A quick assembly linear vibrating screen according to claim 1, characterized in that: The grid is provided with a screen side plate extending into the screen material discharge channel, the screen side plate is arranged along the lower edge of the screen material discharge channel, a first sealing strip is fixedly arranged on the lower edge of the screen material discharge channel, the first sealing strip is located below the screen side plate and is in contact with and sealed to the screen side plate.

5. A quick assembly linear vibrating screen according to claim 4, characterized in that: One side of the head is hinged on the screen box, and the opposite side of the head is fixedly connected to the screen box via a lock; a second sealing strip is sealed between the head and the screen box, and the second sealing strip is fixedly connected to the head.

6. A quick assembly linear vibrating screen according to claim 4, characterized in that: The grid frame includes supporting beams and connecting beams which are fixedly connected to each other and form a frame structure. The side of the grid frame located at the opening is the connecting beam, the screen side plate is located on the connecting beam, the thickness of the connecting beam is less than the thickness of the supporting beam, the supporting beam in the grid frame is supported on the adjacent grid frame, and a gap is left between the connecting beam in the grid frame and the adjacent grid frame; the edge of the screen is laid on the edge of the grid frame and is located on the upper surface of the connecting beam and the supporting beam, a strip pressure strip is tightly arranged on the edge of the screen, the pressing frame is pressed on the connecting beam, the strip pressure strip is arranged between the pressing frame and the connecting beam and between adjacent connecting beams, the strip pressure strip is used to fix, press and seal the screen, so as to facilitate the installation, fixing and sealing of the screen; in addition, the connecting beam is fixedly connected between the supporting beams on opposite sides.

7. A quick assembly linear vibrating screen according to claim 1 or 4, characterized in that: The screen box is in a rectangular shape, with a vibrating body fixedly provided at the lower middle part of the screen box, a second opening provided on the upper surface of the screen box, a box cover sealed on the second opening, the box cover is detachably fixedly connected to the screen box, a feed port is provided on the other side of the box cover opposite to the head, and the screen box is fixedly connected to the bracket through a shock-absorbing spring.

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