Bin door structure of rubber roller bin of rice huller

Abstract

The utility model relates to the technical field of rice hullers, and discloses a bin door structure of a rubber roller bin of a rice huller. The side edge of the bin door body is hinged to the outside of a rubber roller bin of the rice huller, the driving air cylinder is arranged on the bin door body, the movable bearing seat is arranged outside the bin door body and connected with the driving air cylinder, the fixed bearing seat is arranged on the bin door body, and the dismounting rotary knob is arranged on the bin door body. The sealing cover plate is arranged on the inner wall of the bin door body and located at the position of the upper side between the two rubber rollers, a guide plate inclining towards the side close to the bin door body is arranged on the upper side of the sealing cover plate, a gap is reserved between the sealing cover plate and a rubber sleeve of each rubber roller, and the width of the gap is smaller than that of the single rice. The bin door body is further provided with an adjusting piece used for adjusting the distance between the sealing cover plate and the bin door body. The rice at the end of the rubber sleeve can be blocked through the sealing cover plate, and the rice is prevented from falling out from a gap between the end of the rubber sleeve and the bin door body.

Description

Technical Field

[0001] The utility model belongs to the technical field of rice hulling machines, and particularly relates to a door structure of a rubber roll bin of a rice hulling machine. Background Art

[0002] A rice hulling machine is a grain processing machine that removes the glumes of paddy to produce brown rice. It can remove the outer shell of paddy, reduce the breakage of rice grains and damage to the epidermis, and keep the brown rice as intact as possible. It mainly consists of a hopper feeding device, a machine head device, a husk separation chamber, a gearbox, a frame, etc.

[0003] Currently, a Chinese patent with the publication number CN221287953U and the publication date of July 9, 2024 discloses a rice hulling machine that facilitates the disassembly and assembly of rubber rolls, including a machine case, a fixed roll shaft arranged on the machine case, a fixed rubber roll arranged on the fixed roll shaft, a movable roll shaft arranged on the machine case, a movable rubber roll arranged on the movable roll shaft, and an adjusting cylinder. One end of the fixed roll shaft is provided with a first fixed bearing seat installed on the machine case, the other end of the fixed roll shaft is provided with a second fixed bearing seat, one end of the movable roll shaft is provided with a first movable bearing seat hinged to the machine case, the other end of the movable roll shaft is provided with a second movable bearing seat hinged to the machine case, a maintenance door is hinged on one side of the machine case, the maintenance door is provided with a locking knob bolt for threaded connection on the machine case to fix the maintenance door, the maintenance door is provided with an arc-shaped hole for one end of the movable roll shaft to pass through and move, and the adjusting cylinder is hinged between one end of the maintenance door and the end of the second movable bearing seat far from the hinged end; the second fixed bearing seat is installed on the maintenance door from the outside of the maintenance door and cooperates with the fixed roll shaft during the installation process, a support roll for installing one end of the second movable bearing seat is rotatably connected to the machine case, an elastic member is arranged on the support roll to drive the second movable bearing seat to move away from the movable roll shaft to separate from the movable roll shaft, a locking mechanism is arranged on the support roll to drive the second movable bearing seat to move towards the movable roll shaft to cooperate with the movable roll shaft after overcoming the elastic force of the elastic member, and the other end of the second movable bearing seat and the piston rod of the cylinder are detachably and rotatably connected through a joint fork pin shaft; when the second movable bearing seat is disconnected from the adjusting cylinder and the locking mechanism releases the action of overcoming the elastic force of the elastic member, the second movable bearing seat is separated from the movable roll shaft and does not interfere with the opening and closing of the maintenance door after rotating outwards.

[0004] When the rice hulling machine that facilitates the disassembly and assembly of rubber rolls needs to open the maintenance door, first unscrew the bolt to release the connection of the second movable bearing seat on the maintenance door, and then unscrew the locking knob bolt to open the maintenance door, so as to disassemble and assemble the rubber rolls in the rubber roll bin.

[0005] Among them, the rubber roller includes a roller shaft and a rubber sleeve fixed on the roller shaft. When the paddy falls between the two rubber rollers, the paddy will move towards the end of the rubber roller. At this time, since there is a gap between the rubber sleeve of the rubber roller and the door of the rubber roller bin, a small part of the paddy will directly fall after passing through the gap, so that it cannot be extruded by the rubber roller, and finally the shelling rate of the rice huller will be affected. Summary of the Invention

[0006] The purpose of the present invention is to provide a door structure for the rubber roller bin of a rice huller, which can cover the gap between the end of the rubber sleeve and the door body.

[0007] The above technical purpose of the present invention is achieved through the following technical solutions: A door structure for the rubber roller bin of a rice huller includes a door body hinged on the outside of the rubber roller bin of the rice huller, a driving cylinder arranged on the door body, a movable bearing seat arranged outside the door body and connected to the driving cylinder, a fixed bearing seat arranged on the door body, a disassembly knob arranged on the door body, and further includes a sealing cover plate arranged on the inner wall of the door body at the upper side position between the two rubber rollers. A guide plate inclined towards the side close to the door body is arranged on the upper side of the sealing cover plate. A gap is left between the sealing cover plate and the rubber sleeve of the rubber roller, and the width of the gap is smaller than the width of a single paddy. An adjusting member for adjusting the distance between the sealing cover plate and the door body is also arranged on the door body.

[0008] The further setting of the present invention is: The adjusting member includes an internal thread sleeve arranged on the door body, a threaded shaft threadedly connected to the internal thread sleeve, a positioning sleeve arranged on the inner wall of the door body at the lower side position of the internal thread sleeve, a positioning plate arranged on the sealing cover plate and used for being embedded in the positioning sleeve, and the end of the threaded shaft is circumferentially rotatably connected and axially fixedly connected to the sealing cover plate.

[0009] The further setting of the present invention is: A shaft sleeve sleeved on the end of the threaded shaft is arranged on the side wall of the sealing cover plate. An annular groove is opened on the circumferential side of the end of the threaded shaft. A threaded positioning hole corresponding to the annular groove is arranged on the shaft sleeve, and a positioning bolt with an end embedded in the annular groove is threadedly connected to the threaded positioning hole.

[0010] The further setting of the present invention is: A connecting spring with one end abutted against the end face of the internal thread sleeve and the other end abutted against the end face of the shaft sleeve is sleeved on the threaded shaft.

[0011] The further setting of the present invention is: The sealing cover plate is in the shape of an inverted isosceles trapezoid.

[0012] The further setting of the present invention is: A material guiding plate inclined towards the inside of the rubber roller bin is arranged on the door body at the lower side position between the two rubber rollers.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. After the door body of the bin covers the rubber roller bin of the rice huller, the sealing cover plate on the inner wall of the door body of the bin can point to the position above the upper side between the two rubber rollers. Since there is a gap between the sealing cover plate and the rubber sleeve of the rubber roller and the width of the gap is smaller than the width of a single rice grain, the end face of the rubber sleeve is damaged due to sliding friction between the rubber sleeve and the sealing cover plate. At the same time, the rice grains at the end of the rubber sleeve can be blocked by the sealing cover plate, preventing the rice grains from falling out through the gap between the end of the rubber sleeve and the door body of the bin. The guide plate arranged on the upper side of the sealing cover plate and inclined towards the side close to the door body of the bin can play a guiding role to prevent the rice grains from falling into the gap between the sealing cover plate and the door body of the bin. At the same time, the distance between the sealing cover plate and the door body of the bin is adjusted by the adjusting member, so that the sealing cover plate can adapt to the rubber sleeve lengths produced by different models and different manufacturers.

[0015] 2. When it is necessary to adjust the distance between the sealing cover plate and the door body of the bin, the end of the threaded shaft is circumferentially rotatably connected and axially fixedly connected to the sealing cover plate, and the positioning plate on the sealing cover plate is embedded in the positioning sleeve. After rotating the threaded shaft, the movement of the threaded shaft on the internal thread sleeve can drive the sealing cover plate to move, and finally the adjustment of the distance between the sealing cover plate and the door body of the bin can be realized.

[0016] 3. The end of the threaded shaft is embedded in the shaft sleeve of the sealing cover plate, and then the positioning bolt is threadedly connected to the threaded positioning hole of the shaft sleeve, and the end of the positioning bolt is embedded in the annular groove on the circumferential side of the end of the threaded shaft. At this time, the axial movement of the threaded shaft relative to the sealing cover plate can be fixed, and at the same time, the threaded shaft can rotate circumferentially relative to the sealing cover plate. Finally, the end of the threaded shaft can be circumferentially rotatably connected and axially fixedly connected to the sealing cover plate.

[0017] 4. The connecting spring is sleeved on the threaded shaft, and one end of the connecting spring abuts against the end face of the internal thread sleeve and the other end abuts against the end face of the shaft sleeve. At this time, the connecting spring can lock the gaps between the threaded gap, the annular groove and the positioning bolt, which is beneficial to the stable position of the sealing cover plate.

[0018] 5. Since the sealing cover plate is in the shape of an inverted isosceles trapezoid, it is beneficial for the sealing cover plate to avoid the position of the rubber roller shaft and prevent interference between the sealing cover plate and the rubber roller shaft.

[0019] 6. The feeding guide plate is arranged at the position below the two rubber rollers on the door body of the bin and the feeding guide plate is inclined towards the inside of the rubber roller bin. At this time, the feeding guide plate can play a guiding role for the rice grains discharged from the lower side of the two rubber rollers, preventing the rice grains from falling into the gap between the door body of the bin and the rubber roller bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these drawings.

[0021] Figure 1 is a structural schematic diagram of the present utility model;

[0022] Figure 2 is a structural schematic diagram of the door body of the bin in the present utility model;

[0023] Figure 3 is a schematic diagram of the positional relationship among the sealing cover plate, the material guiding plate and two rubber rollers in the present utility model;

[0024] Figure 4 is a partial cross-sectional view of the connection relationship among the door body of the bin, the sealing cover plate and the adjusting member in the present utility model.

[0025] In the figure, 1 is the door body of the bin; 11 is the driving air cylinder; 12 is the movable bearing seat; 13 is the fixed bearing seat; 14 is the disassembly knob; 15 is the material guiding plate; 2 is the sealing cover plate; 21 is the guiding plate; 22 is the bushing; 221 is the threaded positioning hole; 222 is the positioning bolt; 3 is the adjusting member; 31 is the internal threaded sleeve; 32 is the threaded shaft; 321 is the annular groove; 322 is the connecting spring; 33 is the positioning sleeve; 34 is the positioning plate; 4 is the rubber roller; 41 is the rubber sleeve. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] A door structure for the rubber roller bin of a rice huller, referring to Figure 1, the door structure of the rubber roll bin of this rice huller includes a door body 1, a driving cylinder 11, a movable bearing seat 12, a fixed bearing seat 13, a disassembly knob 14 and a cover plate 2. The side of the door body 1 is hinged outside the rubber roll bin of the rice huller, the driving cylinder 11 is connected to the outer wall of the door body 1, the movable bearing seat 12 is arranged outside the door body 1 and connected to the driving cylinder 11, the fixed bearing seat 13 is arranged on the door body 1, the end of the fixed rubber roll 4 is connected to the fixed bearing seat 13 and the end of the movable rubber roll 4 is connected to the movable bearing seat 12. The disassembly knob 14 is used to pass through the door body 1 and then be threadedly connected to the outer wall of the rubber roll bin. The settings of the driving cylinder 11, the movable bearing seat 12, the fixed bearing seat 13 and the disassembly knob 14 are all prior arts, so the connection relationships of the driving cylinder 11, the movable bearing seat 12, the fixed bearing seat 13 and the disassembly knob 14 will not be elaborated here.

[0028] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the cover plate 2 is arranged on the inner wall of the door body 1 and at the upper side position between the two rubber rolls 4. The cover plate 2 is in an inverted isosceles trapezoid shape, and a guide plate 21 that inclines towards the side close to the door body 1 is integrally arranged on the upper side of the cover plate 2. There is a gap between the cover plate 2 and the rubber sleeve 41 of the rubber roll 4, and the width of the gap is smaller than the width of a single rice grain. At the same time, an adjusting member 3 for adjusting the distance between the cover plate 2 and the door body 1 is also arranged on the door body 1. This adjusting member 3 includes an internal thread sleeve 31, a threaded shaft 32, a positioning sleeve 33 and a positioning plate 34. The internal thread sleeve 31 is welded on the door body 1, the threaded shaft 32 is threadedly connected to the internal thread sleeve 31, the positioning sleeve 33 is welded on the inner wall of the door body 1 and at the lower side position of the internal thread sleeve 31, and the positioning plate 34 is welded on the cover plate 2 and used for being embedded in the positioning sleeve 33.

[0029] Refer to Figure 2 , Figure 3 , Figure 4 , a shaft sleeve 22 sleeved on the end of the threaded shaft 32 is welded on the side wall of the cover plate 2. A ring groove 321 is formed on the circumferential side of the end of the threaded shaft 32. A threaded positioning hole 221 is formed on the shaft sleeve 22 and at the position corresponding to the ring groove 321. A positioning bolt 222 with its end embedded in the ring groove 321 is threadedly connected to the threaded positioning hole 221. At this time, the end of the threaded shaft 32 can achieve circumferential rotational connection and axial fixed connection to the cover plate 2. A connecting spring 322 is also sleeved on the threaded shaft 32. One end of the connecting spring 322 abuts against the end face of the internal thread sleeve 31 and the other end abuts against the end face of the shaft sleeve 22. At the same time, a material guiding plate 15 that inclines towards the inside of the rubber roll bin is welded on the inner wall of the door body 1 and at the lower side position between the two rubber rolls 4.

[0030] Principle: After the door body 1 covers the rubber roll bin of the rice huller, the sealing cover plate 2 on the inner wall of the door body 1 can point to the position above the upper side between the two rubber rolls 4. Since there is a gap between the sealing cover plate 2 and the rubber sleeve 41 of the rubber roll 4 and the width of the gap is less than the width of a single paddy, the end face of the rubber sleeve 41 is damaged due to sliding friction between the rubber sleeve 41 and the sealing cover plate 2. At the same time, the sealing cover plate 2 can block the paddy at the end of the rubber sleeve 41 to prevent the paddy from falling out through the gap between the end of the rubber sleeve 41 and the door body 1. The guide plate 21 arranged on the upper side of the sealing cover plate 2 and inclined towards the side close to the door body 1 can play a guiding role to prevent the paddy from falling into the gap between the sealing cover plate 2 and the door body 1.

[0031] At the same time, the end of the threaded shaft 32 is circumferentially rotatably connected and axially fixedly connected to the sealing cover plate 2 through the annular groove 321 and the positioning bolt 222, and the positioning plate 34 on the sealing cover plate 2 is embedded in the positioning sleeve 33. After rotating the threaded shaft 32, the movement of the threaded shaft 32 on the internal thread sleeve 31 can drive the sealing cover plate 2 to move, and finally the distance between the sealing cover plate 2 and the door body 1 can be adjusted, so that the sealing cover plate 2 can adapt to the lengths of the rubber sleeves 41 produced by different models and different manufacturers.

Claims

1. A door structure for a rubber roller bin of a rice husker, comprising a door body (1) whose side is hinged outside the rubber roller bin of the rice husker, a driving cylinder (11) arranged on the door body (1), a movable bearing seat (12) arranged outside the door body (1) and connected to the driving cylinder (11), a fixed bearing seat (13) arranged on the door body (1), and a disassembly knob (14) arranged on the door body (1), characterized in that: It also comprises a covering plate (2) arranged on the inner wall of the door body (1) and located at the upper side between the two rubber rollers, the upper side of the covering plate (2) is provided with a guide plate (21) inclined toward the side close to the door body (1), a gap is left between the covering plate (2) and the rubber sleeve of the rubber roller, and the width of the gap is smaller than the width of a single rice grain, and the door body (1) is also provided with an adjusting member (3) for adjusting the distance between the covering plate (2) and the door body (1).

2. The door structure of the rubber roller bin of a rice husker according to claim 1, characterized in that: The adjusting member (3) comprises an internal threaded sleeve (31) arranged on the door body (1), a threaded shaft (32) threadedly connected to the internal threaded sleeve (31), a positioning sleeve (33) arranged on the inner wall of the door body (1) and located at the lower side of the internal threaded sleeve (31), and a positioning plate (34) arranged on the cover plate (2) and used to be embedded in the positioning sleeve (33), and the end of the threaded shaft (32) is circumferentially rotatably connected and axially fixedly connected to the cover plate (2).

3. The door structure of the rubber roller bin of a rice husker according to claim 2, characterized in that: A shaft sleeve (22) is provided on the side wall of the cover plate (2) and is sleeved on the end of the threaded shaft (32); an annular groove (321) is provided on the circumference of the end of the threaded shaft (32); a threaded positioning hole (221) is provided on the shaft sleeve (22) at a position corresponding to the annular groove (321); a positioning bolt (222) whose end is embedded in the annular groove (321) is threadedly connected to the threaded positioning hole (221).

4. The door structure of the rubber roller bin of a rice husker according to claim 3, characterized in that: The threaded shaft (32) is sleeved with a connecting spring (322) with one end pressed against the end surface of the internal threaded sleeve (31) and the other end pressed against the end surface of the shaft sleeve (22).

5. The door structure of the rubber roller bin of a rice husker according to claim 1, characterized in that: The cover plate (2) is in the shape of an inverted isosceles trapezoid.

6. The door structure of the rubber roller bin of a rice husker according to claim 1, characterized in that: A material guide plate (15) inclined toward the inside of the rubber roller bin is provided on the cover plate (2) and at a position located on the lower side between the two rubber rollers.

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