A wedge installation structure

Abstract

The present invention provides a wedge installation structure, including a screen box, a mesh frame fixedly provided on the inner wall of the screen box, a screen and a pressure frame placed on the mesh frame, the edge of the screen is located between the mesh frame and the pressure frame, wedges are distributed on the pressure frame, a clamp is provided on the wedge, 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 relative to the side wall of the screen box, the baffle is stopped on the wedge, the connecting plate spans over the wedge and passes through the side wall of the screen box and is fixedly connected to the fixing plate, a positioning bolt is provided through the fixing plate and is threadedly matched with the positioning bolt, the inner end of the positioning bolt abuts against the outer wall of the screen box, and a handle is fixed on the outer end of the positioning bolt. The present invention makes it convenient to fix and disassemble the screen in the screen box by improving the wedge structure and changing the fixing method thereof, thereby improving the production efficiency and later maintenance efficiency of the vibrating screen.

Description

Technical Field

[0001] The invention relates to the technical field of screening, and in particular to a wedge block installation structure. Background Art

[0002] At present, vibrating screens have been widely used in all walks of life. Vibration can effectively complete many technological processes or be used to improve the working efficiency of certain machines. Among them, screening machinery has been developed more comprehensively and rapidly. This design is an improved design of the traditional linear vibrating screen, and makes some simple and bold innovative attempts on the original basis. The design content is to change the original bolt-pressed grid frame to wedge-pressed. Summary of the invention

[0003] In response to the needs in the prior art, the present invention provides a wedge block installation structure.

[0004] A wedge block installation structure comprises a screen box, a grid frame is fixedly provided on the inner wall of the screen box, a screen and a pressure frame are placed on the grid frame, the edge of the screen is located between the grid frame and the pressure frame, wedge blocks are distributed on the pressure frame, and a clamp is provided on the wedge block, the clamp comprises a baffle plate and a connecting plate that 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 fixing plate, a positioning bolt is penetrated through the fixing plate and threadedly cooperated with the positioning bolt, the inner end of the positioning bolt abuts against the outer wall of the screen box, and the outer end of the positioning bolt is fixedly provided with a handle.

[0005] 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.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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, which greatly improves the production efficiency and reduces the labor cost of replacing the mesh frame. Compared with the prior art, when the screen is working, under the action of the clamp, the wedge block gradually presses 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 bolts, the clamp is loosened, which is convenient for removing the wedge block, 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 convenient to fix and disassemble in the screen box, thereby improving the production efficiency of the vibrating screen and the subsequent maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 for Figure 1 A magnified view of the structure in the middle A area;

[0013] Figure 3 for Figure 1 A magnified view of the structure in the middle B area;

[0014] Figure 4 It is a front view structural diagram of the wedge;

[0015] Figure 5 Schematic diagram of the top view of the wedge;

[0016] Figure 6 A schematic diagram of the top view of the fixture.

[0017] In the figure, 1, screen box; 2, screen; 3, grid; 31, pressure frame; 311, folding plate; 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

[0018] 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.

[0019] A wedge installation structure, combined with Figure 1 , Figure 2 and Figure 3 As shown, it includes a screen box 1, on the inner wall of which a grid frame 3 is fixedly provided, a screen 2 and a pressure frame 31 are placed on the grid frame 3, the edge of the screen 2 is located between the grid frame 3 and the pressure frame 31, wedge blocks 9 are distributed on the pressure frame 31, and a clamp 6 is provided on the wedge block 9, 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, 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 is threadedly matched with the positioning bolt 5, the inner end of the positioning bolt 5 abuts against the outer wall of the screen box 1, and the outer end of the positioning bolt 5 is fixedly provided with a handle 51.

[0020] Combination Figure 4 , Figure 5 and Figure 6 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, and the angle between the outer side surface 92 of the wedge block 9 that contacts the baffle 61 and the inner side surface is in the range of 2°~5°. The larger the angle here, the greater the friction between the outer side surface 92 and the baffle 61. Therefore, the maximum angle between the outer side surface of the wedge block and the inner side surface is 5°. The outer side surface 92 of the wedge block is inclined to facilitate the baffle to press the wedge block. At the same time, after the wedge block moves along the material moving direction, under the action of the outer side surface, the acting force between the baffle, the wedge block, the pressure frame and the screen box becomes larger, thereby improving the sealing between the folding plate of the pressure frame and the screen frame. The baffle 61 is fitted with the outer side surface 92; the upper side surface of the wedge block 9 that contacts the connecting plate 62 is inclined, and the connecting plate 62 is fitted with the upper side surface 91, wherein the inclination direction of the wedge block 9 is the same as the vibration direction of the material on the screen 2. 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 311 is in contact with the inner side of the wedge block 9.

[0021] A rivet nut 52 is provided between the positioning bolt 5 and the fixing plate 4. The rivet nut 52 is fixedly connected to the fixing plate 4. The rivet nut 52 is threadedly matched with the positioning bolt 5. A locking nut is threadedly matched with the outer end of the positioning bolt 5. The locking nut is stopped on the rivet nut 52.

[0022] The connecting plate 62 is inserted into a through hole opened on the screen box 1 , a sealing gasket 7 is sealed on the outside of the through hole, a backing plate 8 is fitted on the outside of the sealing gasket 7 , the connecting plate 62 passes through the sealing gasket 7 and the backing plate 8 , and the positioning bolt 5 abuts against the backing plate 8 .

[0023] 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 pad 7 and the pad 8 are both located in the sealing cover.

[0024] The working principle of the present invention is as follows: the edge of the screen is placed on the grid frame, and then the pressure frame corresponding to the grid frame is placed on the edge of the screen, the wedges are distributed at different positions of the pressure frame, and then the small head end of the wedge is inserted between the pressure frame and the clamp, and at the same time, the connecting plate and the baffle are both fitted with the wedge, and the handle is rotated to make the positioning bolt pull the connecting plate outward from the screen box, so that the baffle and the connecting plate hold the wedge tightly. Since the wedge is increasingly tightly matched with the connecting plate and the baffle under the vibration of the screen box, the wedge presses the pressure frame downward and toward the side wall of the screen box, thereby fixing the screen and ensuring the fixing effect of the screen and the sealing effect between the pressure frame and the side wall of the screen box.

[0025] 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 wedge block installation structure, characterized in that: The invention comprises a screen box, a grid is fixedly provided on the inner wall of the screen box, a screen and a pressure frame are placed on the grid, the edge of the screen is located between the grid and the pressure frame, wedges are distributed on the pressure frame, a clamp is provided on the wedge, the clamp comprises a baffle and a connecting plate which are perpendicular to each other and fixedly connected, the baffle is located on the other side of the wedge relative to the side wall of the screen box, the baffle is stopped on the wedge, the connecting plate spans over the wedge and passes through the side wall of the screen box and is fixedly connected to the fixing plate, a positioning bolt is penetrated on the fixing plate and is threadedly matched 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 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 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 in contact with 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 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 wedge block installation structure 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. The locking nut is stopped on the rivet nut.

3. A wedge block installation structure 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 wedge block installation structure according to claim 3, characterized in that: 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.

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