A new type of stable rice-rough separation screen

Abstract

The present invention provides a new type of stable grain-rough separation screen, comprising a driving mechanism, a base, a separation box, and a swinging bracket, wherein the swinging bracket comprises a bottom frame and a plurality of roller assemblies, the bottom frame being fixed on the base and provided with two parallel support beams, each support beam being provided with at least two roller assemblies, each roller assembly comprising a roller frame, a roller, and a side baffle, the roller being rotatably arranged on the roller frame, the upper end of the roller frame being connected to the bottom of the separation box, the roller being supported on the support beam and being rollable, the upper portion of the side baffle being connected to the roller frame, and the lower portion being closely attached to the outer side surface of the support beam, the lower portion of the side baffle being provided with a rotatable anti-jumping bearing, the outer ring surface of the anti-jumping bearing being closely attached to the lower surface of the support beam, and the driving mechanism being connected to the separation box. The present invention has the following beneficial effects: rolling friction between the roller and the support beam reduces loss, prolongs service life, achieves smooth movement, and prevents jumping.

Description

Technical Field

[0001] The present invention relates to the technical field of grain-rough separation equipment, in particular to a novel stable grain-rough separation screen. Background Art

[0002] Brown rice separation is a critical and important step in the rice milling process. Due to the differences in specific gravity and friction coefficient between the brown rice and paddy in the brown rice mixture, the brown rice separator uses a drive mechanism to drive the separation box in a bidirectional tilting and reciprocating vibration. The brown rice and paddy are separated on the separation plates within the separation box. The separation box of existing brown rice separators is hinged to the base via support rods, which support and position the separation box and ensure its correct trajectory. The hinged connection between the support rods and the base requires numerous castings, resulting in sliding friction and high losses during movement. Furthermore, the large number of hinges makes assembly difficult, and during operation, the brown rice separator can produce frictional noises. Wear of these hinges can lead to unbalanced vibrations in the machine. Summary of the Invention

[0003] In view of this, an embodiment of the present invention provides a novel stable grain-rough separation screen.

[0004] An embodiment of the present invention provides a new type of stable grain-rough separation screen, comprising a driving mechanism, a base, a separation box, and a swinging bracket connecting the base and the separation box, the swinging bracket comprising a bottom frame and a plurality of roller assemblies, the bottom frame being fixed to the base and provided with two parallel support beams, each of which is provided with at least two roller assemblies, each of which comprises a roller frame, a roller and a side baffle, the roller being rotatably arranged on the roller frame, the upper end of the roller frame being connected to the bottom of the separation box, the roller being supported on the support beam and being rollable, the upper portion of the side baffle being connected to the roller frame, and the lower portion being tightly attached to the outer side surface of the support beam, the lower portion of the side baffle being provided with a rotatable anti-jumping bearing, the outer ring surface of the anti-jumping bearing being tightly attached to the lower surface of the support beam, the driving mechanism being connected to the separation box to drive the separation box to move back and forth along the two support beams.

[0005] Furthermore, the roller frame is a U-shaped frame, the upper end of the side baffle is provided with a U-shaped limiting groove, the roller is provided with an axle, and both ends of the axle pass through the roller frame and extend into the limiting groove.

[0006] Furthermore, the bottom frame is a rectangular frame, including two support beams and two connecting columns, and the two connecting columns are respectively connected to the base.

[0007] Furthermore, the two connecting columns are respectively a first connecting column and a second connecting column, the two ends of the first connecting column are rotatably connected to the base, and the second connecting column is connected to the base through an adjustable connecting piece, and the adjustable connecting piece includes an L-shaped adapter block, an adjustment column and a locking nut, the first connecting column horizontally passes through one end of the adapter block and is rotatable, and the other end of the adapter block is connected to the lower end of the adjustment column, a vertical through hole is provided on the base, the adjustment column passes through the through hole and can slide vertically, and the upper end of the adjustment column extends out of the through hole and is threadedly connected to the locking nut.

[0008] Furthermore, the base is a rectangular parallelepiped frame, a U-shaped fixing frame is provided at one upper end thereof, the driving mechanism is arranged on the fixing frame, and the separation box is arranged on one side of the fixing frame and tilted toward the driving mechanism.

[0009] Furthermore, the anti-jump bearing is fixed to the side baffle by a fixing bolt, and the fixing bolt is arranged on the outer side of the side baffle, vertically penetrates the side baffle and connects the anti-jump bearing.

[0010] Furthermore, the driving mechanism includes a driving motor and an eccentric transmission structure, and the driving motor is connected to the separation box through the eccentric transmission structure.

[0011] Furthermore, an upper connecting plate is provided on the upper portion of the roller frame, and a lower connecting plate is provided on the bottom of the separation box. The upper connecting plate overlaps with the lower connecting plate and is connected by fasteners.

[0012] The beneficial effects brought about by the technical solution provided by the embodiments of the present invention are: the new stable grain-rough separation screen of the present invention has a swing bracket arranged between the separation box and the base, and the bottom of the separation box rolls along the support beam through the roller when it reciprocates, and there is rolling friction between the roller and the support beam, which reduces the loss and extends the service life compared with the sliding friction of the original hinge; in addition, an anti-jump bearing is arranged at the bottom of the support beam to make the roller move smoothly, effectively preventing the separation box from jumping, and has the advantages of simple structure and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a novel stable grain-rough separation screen of the present invention;

[0014] Figure 2 This is the first exploded view of a novel stable grain-rough separation screen of the present invention;

[0015] Figure 3 This is the second exploded view of a novel stable grain-rough separation screen of the present invention;

[0016] Figure 4 yes Figure 2 Schematic diagram of the middle swing bracket 4;

[0017] Figure 5 yes Figure 4 Exploded view of the middle roller assembly 8.

[0018] In the figure: 1-driving mechanism, 2-base, 3-separation box, 4-swing bracket, 5-support beam, 6-first connecting column, 7-second connecting column, 8-roller assembly, 9-adapter block, 10-adjusting column, 11-locking nut, 12-roller frame, 13-roller, 14-side baffle, 15-anti-jump bearing, 16-limiting groove, 17-fixing nut, 18-upper connecting plate, 19-lower connecting plate, 20-through hole. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to Figure 1 、 2 and 3. An embodiment of the present invention provides a novel stable grain-rough separation screen, comprising a driving mechanism 1, a base 2, a separation box 3, and a swing bracket 4 connecting the base 2 and the separation box 3.

[0021] The base 2 is a rectangular parallelepiped frame with a U-shaped fixing frame at one end of its upper portion. The driving mechanism 1 is disposed on the fixing frame, and the separation box 3 is disposed on one side of the fixing frame and is tilted toward the driving mechanism 1. The driving mechanism 1 is used to drive the separation box 3 to move back and forth along a set trajectory. Generally, the driving mechanism 1 is composed of a driving motor and an eccentric transmission structure. The driving motor is connected to the separation box 3 via the eccentric transmission structure. The driving motor and the eccentric transmission structure can be selected according to actual work needs and will not be described in detail here.

[0022] Please refer to Figure 4 The swing bracket 4 includes a bottom frame and multiple roller assemblies 8. In this embodiment, the bottom frame is a rectangular frame, including two support beams 5 and two connecting columns 6 and 7. The two support beams 5 are parallel to each other, and the two connecting columns 6 and 7 are perpendicularly connected to the two connecting columns 6 and 7 at both ends of each support beam 5. The two connecting columns 6 and 7 are respectively connected to the base 2, thereby fixing the bottom frame to the base 2.

[0023] In this embodiment, the number of the roller assemblies 8 is four. Figure 5Two roller assemblies 8 are provided on each support beam 5. Each roller assembly 8 includes a roller frame 12, a roller 13, and a side guard 14. The roller frame 12 is a U-shaped frame, with an upper connecting plate 18 provided at its upper end. The upper ends of the side guards 14 are provided with U-shaped limiting grooves 16. The side guards 14 are closely attached to the outer side surfaces of the support beam 5. The upper portions of the side guards 14 are fixedly connected to the roller frame 12, while the lower portions are lower than the bottom surface of the support beam 5. The rollers 13 are provided with axles, and both ends of the axles pass through the roller frame 12 and extend into the limiting grooves 16, so that the rollers 13 are rotatably provided on the roller frame 12.

[0024] The bottom of the separation box 3 is provided with four lower connecting plates 19 arranged in a rectangular pattern. Each upper connecting plate 18 overlaps with a lower connecting plate 19 and is connected by fasteners, in this case bolts. The two rollers 13 are supported on a support beam 5. Each side guard 14 restrains the rollers 13 from the outside, ensuring that the rollers 13 roll along the support beam 5.

[0025] In order to prevent the roller 13 from jumping during the rolling process, a rotatable anti-jumping bearing 15 is provided at the lower part of the side baffle 14. Specifically, the anti-jumping bearing 15 is fixed to the side baffle 14 by a fixing bolt, one end of which is connected to the anti-jumping bearing 15, and the other end passes through the side baffle 14 and is connected to a fixing nut 17, which is arranged on the outer side of the side baffle 14. The outer ring surface of the anti-jumping bearing 15 is in close contact with the lower surface of the support beam 5. When the roller 13 rotates, the roller frame 12 moves along the support beam 5, and the outer ring of the anti-jumping bearing 15 rolls along the lower surface of the support beam 5. The roller 43 and the anti-jumping bearing 45 roll along the upper and lower surfaces of the support beam 5, respectively, which can effectively prevent jumping.

[0026] The separation box 3 is provided with an inclined separation plate, and the separation of grain and roughness is achieved by the separation plate. In this embodiment, the inclination angle of the separation plate can also be adjusted by adjusting the inclination angle of the separation box 3. Specifically, the two connecting columns are respectively a first connecting column 6 and a second connecting column 7. The two ends of the first connecting column 6 are rotatably connected to the base 2. Here, a rotating bearing is inserted at each end of the first connecting column 6, and the two rotating bearings are fixed to the base 2 through bearing seats. The second connecting column 7 is connected to the base 2 through an adjustable connector. The adjustable connector includes an L-shaped adapter block 9, an adjustment column 10 and a locking nut 11. The first connecting column 7 horizontally passes through one end of the adapter block 9 and is rotatable. The other end of the adapter block 9 is connected to the lower end of the adjustment column 10. A vertical through hole 20 is provided on the base 2. The adjustment column 10 is provided with an external thread. The adjustment column 10 passes through the through hole 20 and can slide vertically. The upper end of the adjustment column 10 extends out of the through hole 20 and is threadedly connected to the locking nut 11. Unscrew the locking nut 11, and the separation box 3 and the bottom frame can be rotated around the first connecting column 6 to adjust the tilt angle. During the rotation, the height of the adjustment column 10 extending out of the through hole 20 changes. Rotate it to the appropriate position and then screw on the locking nut 11.

[0027] When the new stable grain-rough separation screen of this embodiment is working, the driving mechanism 1 drives the separation box 3 to move back and forth, and the bottom of the separation box 3 relies on the roller 13 to roll along the support beam 5. The roller 13 and the support beam 5 have low wear and tear and a long practical life, which can effectively prevent the separation box 3 from jumping.

[0028] It should be noted that a new type of stable grain-rough separation screen of the present application can also be made into a double-body grain-rough separator, which includes a driving mechanism, two swing brackets and two separation boxes. The separation box and the swing bracket are still installed and fixed according to the above-mentioned connection method. The driving mechanism is arranged between the two separation boxes, respectively connecting the two separation boxes, and driving the two separation boxes to move back and forth at the same time.

[0029] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0030] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of stable rice and roughness separation screen, characterized by: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm is pivotally connected to the base, and the swing arm is pivotally connected to the base by a crankcase, and the crankcase is pivotally connected to the base by a crooked arm. The roller frame is a U-shaped frame, the upper end of the side baffle is provided with a U-shaped limiting groove, the roller is provided with a wheel axle, and both ends of the wheel axle pass through the roller frame and extend into the limiting groove; The bottom frame is a rectangular frame, comprising two support beams and two connecting columns, wherein the two connecting columns are respectively connected to the base; The two connecting posts are respectively a first connecting post and a second connecting post, the first connecting post being rotatably connected to the base at both ends, the second connecting post being connected to the base via an adjustable connecting piece, the adjustable connecting piece comprising an L-shaped adapter block, an adjustment post and a locking nut, the second connecting post horizontally passing through one end of the adapter block and being rotatable, the other end of the adapter block being connected to the lower end of the adjustment post, a vertical through-hole being provided on the base, the adjustment post passing through the through-hole and being vertically slidable, the upper end of the adjustment post extending out of the through-hole and being threadedly connected to the locking nut; The anti-jump bearing is fixed to the side baffle by a fixing bolt, one end of the fixing bolt is connected to the anti-jump bearing, and the other end passes through the side baffle and is connected to a fixing nut; The base is a rectangular parallelepiped frame, one end of the upper portion of which is provided with a U-shaped fixing frame, the driving mechanism is arranged on the fixing frame, and the separation box is arranged on one side of the fixing frame and tilted toward the driving mechanism.

2. A novel stable grain-rough separation screen according to claim 1, characterized in that: The driving mechanism includes a driving motor and an eccentric transmission structure, and the driving motor is connected to the separation box through the eccentric transmission structure.

3. The novel stable rice-rough separation screen according to claim 1, characterized in that: An upper connecting plate is provided on the upper portion of the roller frame, and a lower connecting plate is provided on the bottom of the separation box. The upper connecting plate overlaps with the lower connecting plate and is connected by fasteners.

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