Vibrating screen capable of conveniently adjusting fall distance

Abstract

The utility model provides a vibrating screen capable of conveniently adjusting fall spacing, and relates to the technical field of coarse cereal production. Four dampers are fastened and connected to the top end face of the fixed rack in a rectangular array shape through bolts; the top end faces of the four dampers are fixedly connected with a screening hopper. Four connecting springs are fixedly connected to the outer portion of the screening hopper in a rectangular array shape. The tail ends of the four connecting springs are fixedly connected to the top end face of the fixed rack. The lower part of the screening hopper is fixedly connected with a vibration motor through a bolt; two mounting frames are symmetrically and fixedly connected in the screening hopper; and a screen is connected between the two mounting frames in a sliding manner. A driving motor is started, then a series of transmission drives a material distributing plate to reciprocate to spread coarse cereals falling from a feeding hopper, it is guaranteed that the coarse cereals are evenly distributed on a screen, and the problem that once the feeding speed is too high, a large number of coarse cereal particles are likely to be rapidly accumulated on the screen to cause accumulation is solved. And the effective screening area of the screen is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of miscellaneous grain production, in particular to a vibrating screen which is convenient for adjusting the drop distance. Background Art

[0002] In the process of miscellaneous grain production, in order to remove impurities in the miscellaneous grains and improve the purity of the miscellaneous grains, workers usually use a vibrating screen to screen the miscellaneous grain particles. The existing vibrating screen usually consists of a screen hopper, a screen mesh, a vibrating motor and a feed hopper.

[0003] For example: The utility model with the application number CN202222870774.2 discloses a screening mechanism for miscellaneous grain raw materials, which specifically includes a support frame and a vibrating screen. The vibrating screen is installed inside the support frame, and a guiding member is installed at the top of the vibrating screen; an adjusting member is installed inside the vibrating screen; wherein, the guiding member is used for guiding the materials inside the vibrating screen, and the adjusting member is used for adjusting the mesh number of the screen mesh inside the vibrating screen. This screening mechanism for miscellaneous grain raw materials makes the pull rod move forward through the cooperation of the circular ring and the adapter, drives one end of the guiding plate to move forward through the cooperation of the pull rod, the adapter and the connecting head, drives the adjusting net to move left and right through the circular plate and the adjusting rod, limits the pull plate through the cooperation of the rotating block, the limiting rod and the adjusting rod, limits the adjusting rod through the pull plate, the limiting column and the limiting holes formed on the front surface of the screen hopper. Through the cooperation of the above components, it is convenient and fast to export large pieces of materials from the screen hopper and adjust the size of the screen mesh number.

[0004] However, for the current traditional vibrating screen, when feeding miscellaneous grain particles through the feed hopper, once the feeding speed is too fast, it is easy to cause a large number of miscellaneous grain particles to quickly accumulate on the screen mesh, resulting in a reduction in the effective screening area of the screen mesh, reducing the screening efficiency of the vibrating screen and increasing the screening time required, making it inconvenient to use. Summary of the Utility Model

[0005] In view of this, the utility model provides a vibrating screen which is convenient for adjusting the drop distance. It has a material distributing plate that can spread the miscellaneous grain particles falling on the screen mesh. By starting the driving motor, the driving motor drives the rotating frame to rotate. During the rotation of the rotating frame, the reciprocating sliding frame is driven to reciprocate. During the reciprocating sliding of the reciprocating sliding frame, the guiding slider is driven to reciprocate. During the reciprocating sliding of the guiding slider, the material distributing plate is driven to reciprocate. During the reciprocating movement of the material distributing plate, the miscellaneous grains falling from the feed hopper are spread out, accelerating the screening efficiency of the miscellaneous grains. Through the setting of the shunt block, the miscellaneous grains falling on the material distributing plate can be shunted.

[0006] The utility model provides a vibrating screen which is convenient for adjusting the drop distance, specifically including: a fixed frame; four dampers are bolted and fastened to the top surface of the fixed frame in a rectangular array; a screening hopper is fixedly connected to the top surfaces of the four dampers; four connecting springs are fixedly connected to the outside of the screening hopper in a rectangular array; the ends of the four connecting springs are all fixedly connected to the top surface of the fixed frame; a vibrating motor is bolted and fastened to the lower part of the screening hopper; two mounting frames are symmetrically and fixedly connected inside the screening hopper; a screen is slidably connected between the two mounting frames; a mounting seat is fixedly connected to the center of the rear end surface of the screening hopper.

[0007] Optionally, a transmission rotating shaft is rotatably connected to the center inside the fixed frame; two operating handles are symmetrically and fixedly connected to the outside of the transmission rotating shaft; two first bevel gears are symmetrically and fixedly connected to the outside of the transmission rotating shaft.

[0008] Optionally, a second bevel gear is meshed with the upper part of each of the two first bevel gears; two fixed columns are symmetrically and fixedly connected to the outside of the fixed frame; a lifting screw rod is rotatably connected to each of the two fixed columns; the two second bevel gears are respectively fixedly connected to the lower parts of the two lifting screw rods; a lifting sliding frame is threadedly connected to the outside of the two lifting screw rods; the lifting sliding frame is slidably connected inside the two fixed columns; a feeding hopper is fixedly connected to the upper part of the lifting sliding frame; the feeding hopper is aligned with the screening hopper.

[0009] Optionally, a driving motor is bolted and fastened to the rear end surface of the mounting seat; a rotating frame is fixedly connected to the front part of the driving motor shaft; a reciprocating sliding frame is slidably connected to the front part of the mounting seat; the rotating frame is slidably connected inside the reciprocating sliding frame.

[0010] Optionally, a guiding slider is fixedly connected to the top surface of the reciprocating sliding frame; the guiding slider is slidably connected to the rear end surface of the screening hopper; a material dividing plate is fixedly connected to the front end surface of the guiding slider; a material flow dividing block is fixedly connected to the top surface of the material dividing plate.

[0011] Optionally, a group of limiting insertion rods are slidably connected to each of the two mounting frames; a connecting plate is fixedly connected to the top surfaces of the two groups of limiting insertion rods; a group of reset springs are fixedly connected to the bottom end surfaces of the two connecting plates; the ends of the two groups of reset springs are respectively fixedly connected to the top surfaces of the two mounting frames; the ends of the two groups of limiting insertion rods are inserted into the screen.

[0012] Beneficial effects

[0013] During the process of screening miscellaneous grains, the staff can start the driving motor to drive the rotating frame to rotate. Subsequently, through a series of transmissions, the material distribution plate is driven to move reciprocally. During the reciprocal movement of the material distribution plate, the miscellaneous grains falling from the feed hopper are spread out, ensuring that the miscellaneous grains are evenly distributed on the sieve mesh, avoiding the accumulation and congestion of materials on the sieve mesh, enabling the miscellaneous grain particles to come into contact with the sieve mesh more fully, improving the screening effect, reducing the phenomenon of sieve holes being blocked due to material accumulation, helping to maintain the smoothness of the sieve mesh, improving the screening efficiency, effectively enhancing the practicality of the vibrating screen, and making it more convenient to use.

[0014] When the sieve mesh needs to be replaced, the staff only needs to pull the connecting plate to drive the limit insertion rod to move and stretch the return spring. As the limit insertion rod moves, it will disengage from the sieve mesh. At this time, the staff can remove the sieve mesh for replacement. The operation is simple and fast, effectively improving the convenience of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0016] In the accompanying drawings:

[0017] Figure 1 is the axonometric structure schematic diagram of the present invention.

[0018] Figure 2 is the axonometric structure schematic diagram of the rear view of the present invention.

[0019] Figure 3 is the axonometric structure schematic diagram of the lifting screw of the present invention.

[0020] Figure 4 is the present invention Figure 3 The enlarged structure schematic diagram at position A.

[0021] Figure 5 is the cross-sectional structure schematic diagram of the reciprocating carriage of the present invention.

[0022] Figure 6 is the cross-sectional structure schematic diagram of the mounting bracket of the present invention.

[0023] Figure 7 is the present invention Figure 6 The enlarged structure schematic diagram at position B.

[0024] LIST OF REFERENCE NUMERALS

[0025] 1. Fixed frame; 101. Damper; 102. Screening hopper; 103. Connecting spring; 104. Fixed column; 105. Driving rotating shaft; 106. Operating handle; 107. First bevel gear; 108. Lifting screw; 109. Second bevel gear; 110. Lifting carriage; 111. Feed hopper; 112. Mounting frame; 113. Screen mesh; 114. Limit plug rod; 115. Return spring; 116. Connecting plate; 117. Mounting seat; 118. Driving motor; 119. Reciprocating carriage; 120. Rotating frame; 121. Guide slider; 122. Material distribution plate; 123. Shunt block; 124. Vibration motor. Detailed implementation manners

[0026] In order to make the objectives, solutions, and advantages of the technical solutions of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present utility model. Unless otherwise specified, the terms used herein have the meanings commonly used in the art. The same reference numerals in the drawings represent the same components.

[0027] Embodiment 1:

[0028] The present utility model proposes a vibrating screen that is convenient for adjusting the drop spacing. Please refer to Figures 1 to 5 , including: a fixed frame 1;

[0029] Four dampers 101 are bolted and fastened to the top surface of the fixed frame 1 in a rectangular array; the top surfaces of the four dampers 101 are fixedly connected to a screening hopper 102; four connecting springs 103 are fixedly connected to the outside of the screening hopper 102 in a rectangular array; the ends of the four connecting springs 103 are all fixedly connected to the top surface of the fixed frame 1; a vibration motor 124 is bolted and fastened to the lower part of the screening hopper 102; two mounting frames 112 are symmetrically and fixedly connected inside the screening hopper 102; a screen mesh 113 is slidably connected between the two mounting frames 112; a mounting seat 117 is fixedly connected to the center of the rear end surface of the screening hopper 102.

[0030] A driving rotating shaft 105 is rotatably connected to the center inside the fixed frame 1; two operating handles 106 are symmetrically and fixedly connected to the outside of the driving rotating shaft 105; two first bevel gears 107 are symmetrically and fixedly connected to the outside of the driving rotating shaft 105.

[0031] A second bevel gear 109 is engaged with the upper part of each of the two first bevel gears 107; two fixed columns 104 are symmetrically and fixedly connected to the outside of the fixed frame 1; a lifting screw 108 is rotatably connected to each of the two fixed columns 104; the two second bevel gears 109 are respectively fixedly connected to the lower parts of the two lifting screws 108; a lifting carriage 110 is threadedly connected to the outside of the two lifting screws 108; the lifting carriage 110 is slidably connected within the two fixed columns 104; a feed hopper 111 is fixedly connected to the upper part of the lifting carriage 110; the feed hopper 111 is aligned with the screening hopper 102.

[0032] A drive motor 118 is bolted to the rear end face of the mounting seat 117; a rotating frame 120 is fixedly connected to the front part of the rotating shaft of the drive motor 118; a reciprocating carriage 119 is slidably connected to the front part of the mounting seat 117; the rotating frame 120 is slidably connected within the reciprocating carriage 119.

[0033] A guiding slider 121 is fixedly connected to the top end face of the reciprocating carriage 119; the guiding slider 121 is slidably connected to the rear end face of the screening hopper 102; a distributing plate 122 is fixedly connected to the front end face of the guiding slider 121; a diverging block 123 is fixedly connected to the top end face of the distributing plate 122.

[0034] The specific usage and function of this embodiment: By starting the vibration motor 124, the vibration motor 124 cooperates with the damper 101 and the connecting spring 103 to vibrate the screening hopper 102 to screen the miscellaneous grains. The feed hopper 111 is provided to supply materials to the screening hopper 102. By rotating the operating handle 106, the operating handle 106 drives the transmission rotating shaft 105 to rotate. During the rotation of the transmission rotating shaft 105, the first bevel gear 107 is driven to rotate. During the rotation of the first bevel gear 107, the second bevel gear 109 is driven to rotate. During the rotation of the second bevel gear 109, the lifting screw 108 is driven to rotate. The rotation of the lifting screw 108 drives the lifting carriage 110 to slide within the fixed column 104. The sliding of the lifting carriage 110 drives the feed hopper 111 to lift, adjusting the drop distance between the miscellaneous grains and the screen 113. By starting the drive motor 118, the drive motor 118 drives the rotating frame 120 to rotate. During the rotation of the rotating frame 120, the reciprocating carriage 119 is driven to reciprocate. During the reciprocating movement of the reciprocating carriage 119, the guiding slider 121 is driven to reciprocate. During the reciprocating movement of the guiding slider 121, the distributing plate 122 is driven to reciprocate. During the reciprocating movement of the distributing plate 122, the miscellaneous grains falling from the feed hopper 111 are spread out, accelerating the screening efficiency of the miscellaneous grains. The diverging block 123 can divert the miscellaneous grains falling onto the distributing plate 122.

[0035] Embodiment Two:

[0036] Based on Embodiment 1, please refer to Figures 6 to 7 , including: a limit insertion rod 114, a return spring 115, and a connecting plate 116. A set of limit insertion rods 114 are slidably connected inside two mounting brackets 112; a connecting plate 116 is fixedly connected to the top end surfaces of the two sets of limit insertion rods 114; a set of return springs 115 are fixedly connected to the bottom end surfaces of the two connecting plates 116; the ends of the two sets of return springs 115 are respectively fixedly connected to the top end surfaces of the two mounting brackets 112; the ends of the two sets of limit insertion rods 114 are inserted into the sieve mesh 113.

[0037] Specific usage method and function of this embodiment: When the sieve mesh 113 needs to be replaced, the staff only needs to pull the connecting plate 116 to drive the limit insertion rod 114 to move and stretch the return spring 115. As the limit insertion rod 114 moves, it will disengage from the sieve mesh 113. At this time, the staff can remove the sieve mesh 113 for replacement.

[0038] In this article, the following points need to be noted:

[0039] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0040] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A vibrating screen that is convenient for adjusting the height difference, comprising: A fixed frame (1); the top surface of the fixed frame (1) is in a rectangular array and is bolted to four dampers (101); the top surfaces of the four dampers (101) are fixedly connected to a screening hopper (102); the outside of the screening hopper (102) is in a rectangular array and is fixedly connected to four connecting springs (103); the ends of the four connecting springs (103) are fixedly connected to the top surface of the fixed frame (1); the lower part of the screening hopper (102) is bolted to a vibration motor (124); two mounting frames (112) are symmetrically fixedly connected inside the screening hopper (102); a screening mesh (113) is slidably connected between the two mounting frames (112); the screening hopper (102) is A mounting seat (117) is fixedly connected to the center of the rear end face; a driving motor (118) is boltedly connected to the rear end face of the mounting seat (117); a rotating frame (120) is fixedly connected to the front of the rotating shaft of the driving motor (118); a reciprocating slide (119) is slidably connected to the front of the mounting seat (117); the rotating frame (120) is slidably connected in the reciprocating slide (119); a guide slider (121) is fixedly connected to the top end face of the reciprocating slide (119); the guide slider (121) is slidably connected to the rear end face of the screening hopper (102); a material dividing plate (122) is fixedly connected to the front end face of the guide slider (121); and a flow dividing block (123) is fixedly connected to the top end face of the material dividing plate (122).

2. A vibrating screen that is easy to adjust the height gap as claimed in claim 1, characterized in that: A transmission shaft (105) is rotatably connected in the center of the fixed frame (1); two operating handles (106) are symmetrically fixedly connected to the outside of the transmission shaft (105); and two first bevel gears (107) are symmetrically fixedly connected to the outside of the transmission shaft (105).

3. A vibrating screen that is easy to adjust the height gap as claimed in claim 2, characterized in that: The upper parts of the two first bevel gears (107) are meshed with a second bevel gear (109); the exterior of the fixed frame (1) is symmetrically fixedly connected to two fixed columns (104); a lifting screw (108) is rotatably connected inside the two fixed columns (104); the two second bevel gears (109) are respectively fixedly connected to the lower parts of the two lifting screws (108); the exteriors of the two lifting screws (108) are threadedly connected to a lifting slide (110); the lifting slide (110) is slidably connected inside the two fixed columns (104); a feed hopper (111) is fixedly connected to the upper part of the lifting slide (110); the feed hopper (111) is aligned with the screening hopper (102).

4. A vibrating screen with easy-to-adjust head spacing as claimed in claim 1, characterized in that: A group of limit rods (114) are slidably connected in the two mounting frames (112); the top end surfaces of the two groups of limit rods (114) are fixedly connected to a connecting plate (116); the bottom end surfaces of the two connecting plates (116) are fixedly connected to a group of return springs (115); the ends of the two groups of return springs (115) are respectively fixedly connected to the top end surfaces of the two mounting frames (112); and the ends of the two groups of limit rods (114) are inserted into the screen (113).

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