CN113289710B - Feeding mechanism of a rubber roller husker - Google Patents

Abstract

A feeding mechanism of a rubber roller husker belongs to the field of agricultural technology, comprising a hopper (1), a short-drip plate (3) and a long-drip plate (10) capable of bending and vibrating, characterized in that: the bending and vibrating plate is characterized in that: The long flow plate (10) is divided into three areas: the accumulation zone flow plate (4), the parabolic transition zone (5) and the acceleration flow plate (6). The upper part of the hopper (6) is inserted into the speeding plate (6) and connected by hinges. The inner surface of the bottom wall of the speeding plate (6) is provided with a vibrating chute (7); A hopper discharge control board (2) is inserted inside the hole; the connection between the hopper (1) and the short-drain plate (3) is that the straight barrel part at the lower part of the hopper (1) is vertically inserted into the short-drain plate (3) from top to bottom. in the barrel section and connected by hinges. The invention has strong operability, low cost and obvious effect.

Description

Feeding mechanism of a rubber roller husker

technical field

The invention relates to a feeding mechanism of a rubber roller husker, belonging to the technical field of agriculture.

Background technique

Rice hulling is the process of removing rice husks to obtain complete brown rice, and it is one of the important links in the rice processing process. The most widely used husking equipment in the field of rice processing is the rubber roller husking machine. Therefore, the improvement of the hulling performance of the rubber roller husker is very important to the development of the rice processing industry. Therefore, scholars at home and abroad have carried out a lot of research on the rubber roller huller from different angles, so that the rubber roller huller has been greatly improved in terms of performance and automation level compared with the previous ones. However, the shelling rate and breakage rate still do not meet the ideal requirements. At present, the shelling rate is still at 80-90%, and the breakage rate is generally higher than 4%. Some studies have found that the most effective shelling method of the rubber roller hulling machine is: the rubber roller releases the connection of the cob and the interlocking of the palea and the palea through the shearing action. Due to the particularity of the rice structure, the hulling attitude is extremely important to the hulling rate and breakage rate, and it is proved that the hulling rate can be increased to 98.5±0.82% when the rice grains are hulled with the long axis perpendicular to the roller axis. , the breakage rate is reduced to 2.3% ± 0.26%. Therefore, when other conditions are optimal, the feeding quality of the feeding system becomes the key to improving the shelling rate and reducing the crushing rate. At present, the relevant research on the feeding system at home and abroad, according to the published literature and patents, scholars mainly consider whether the feeding system can realize the single-layer grain when the material enters the roll area through the feeding mechanism, and the grain and the rubber roll The line speed difference between them is minimized, the grains are accurately fed into the hulling area to avoid bouncing, and the grain flow is uniform. For example, Lu Shuhua and others improved the feeding mechanism of the LGGQ254 pneumatic grain hulling machine. They installed slide rails between the feeding part and the rubber roller box to facilitate the sliding of the feeding part box. The rolling distance of the rubber roller box is provided with The observation window is adjusted to the best position and fixed according to the position of the outlet of the feeding gutter, so that the material layer is always aligned with the center of the rolling distance, so as to achieve accurate feeding and avoid particle bouncing. At the same time, the feeding form of the combination of the drip plate and the feeding roller is used for feeding. This method is shorter than the drip plate in the pure drip plate feeding form. Combined with the acceleration of the feeding roller, the requirements of the feeding speed are achieved. Ren Jinbo improved the feeding mechanism by using the combination of electromagnetic vibrating feeder, feeding roller and dripping plate to ensure reasonable setting of material layer, uniform feeding and increase feeding speed. Luoyuan Mountain increases the speed of grains entering the hulling valley area and prevents grains from splashing by changing the angle between the long and short dripping boards and the horizontal direction and increasing the length of the long dripping boards. In terms of patents, CN204074130U discloses a feeding structure of a rubber roller husker. By arranging a crescent-shaped material distribution piece and a diversion cavity on the short traverse plate, and dividing the drainage that communicates with the short traverse plate diversion cavity on the long traverse plate The method of cavity realizes the homogeneous function, which avoids the accumulation and overlap of rice grains in the hulling area; CN204074216U discloses an anti-splash feeding mechanism, by adding a mechanism for controlling the inclination angle of the long dribbling plate, so that the end point of the long dribbling plate is always aligned The gap between the two rubber rollers; CN202356122U discloses a feeding mechanism of a grain hulling machine, which adopts a flow regulating plate installed under the feeding hopper, and controls the flow regulating plate by adjusting the handle transmission mechanism to realize high-precision control of the feeding flow; CN206911417U A grain hulling machine feeding mechanism is announced, which uses a vibrating screen to evenly scatter paddy grains on a long deflector, and divides drainage grooves on the long deflector to achieve uniform distribution. It can be seen that the above-mentioned documents and patents do not consider the attitude of grain entering the hulling area in the research and improvement of the feeding mechanism. In response to this problem, CN201064719Y and CN201064718Y respectively announced a pneumatic vibrating feeder for a cot husker and a double-row magnetic coil vibrating feeder for a cot husker. The above equipment Both the silo and the silo frame are connected by spring sheets, respectively, to provide vibration by means of pneumatic vibrating cylinder and magnetic coil type vibration, feeding material to the long dripping plate and adjusting the posture. This method plays a certain role in the adjustment of the attitude, but the adjustment rate is not high, and the device structure is complicated. Therefore, the design of a simple structure and stable operation can realize that the rice grains are quickly and vertically fed into the hulling area, thereby greatly improving the shelling rate and reducing the crushing rate. It is a technical problem that needs to be solved urgently to provide reference for the development of equipment such as classification, rectification and color sorting of bulk materials. Therefore, it is necessary to invent a feeding mechanism of a rubber roller husker.

SUMMARY OF THE INVENTION

In order to overcome how to design a simple structure and stable operation, the rice grains can be quickly and vertically fed into the hulling area, thereby greatly improving the shelling rate and reducing the breaking rate. At the same time, the equipment is also approximately ellipsoid or elongated The development of equipment such as classification, rectification and color sorting of granular materials provides reference for the problem. The invention provides a feeding mechanism for a rubber roller husker, which has a simple structure, The work is stable. Among the three areas of the long-flowing plate that can be bent and vibrated, the flowing plate in the accumulation area can adjust the attitude of the rice grains, so that the long axis of the rice grains can be adjusted to be parallel to the flow direction of the grain flow; the parabolic transition area can make the particle attitude continue. Adjust and gradually transition to the vibrating area with chute; Accelerating the flow plate can keep the grains with a good posture in the best hulling posture, and force the grains with poor posture to adjust to the best, and at the same time accelerate the paddy grains , the three areas work in synergy, so that the invention can realize that the rice grains are quickly and vertically fed into the hulling area.

The technical scheme adopted by the present invention to solve its technical problems is:

The feeding mechanism of a rubber roller husker of the present invention includes a hopper 1, a short dribble plate 3 and a long dribble plate 10 that can be bent and vibrated.

The hopper 1 is made of iron, copper or aluminum alloy, and the thickness of the wall is 1-5mm. The hopper 1 is divided into three parts: the upper part, the middle part and the lower part. The upper part of the hopper 1 is a cube. Both are 150-250mm, the cube has no top wall, and is used for charging; the middle of hopper 1 is a cone, the upper part of the cone of hopper 1 is square, the length and width of the square are 150-250mm, and the lower part of the cone of hopper 1 is It is square, and the length and width of the square are 30-70mm; the lower part of the hopper 1 is a square barrel, the length, width and height of the square barrel are 30-70mm, and the square barrel has no top wall and bottom wall; the upper part of the hopper 1, The adjacent parts of the middle part and the lower part are connected together by welding. There is a square hole with a height of 2-5mm and a width of 20-50mm on the corresponding two side walls of the connection between the cone of the hopper 1 and the square barrel. The control board 2 is made of iron, copper or aluminum alloy, the thickness is 1.9-4.9mm, the length is 40-60mm, and the width is 19-49mm.

The short-drain plate 3 is divided into two parts: the upper part and the lower part. The lower part of the short-drain plate 3 is made of iron, copper or aluminum alloy, and the thickness of the wall is 1-5mm, which is in the shape of a straight barrel. The length is 150-250mm, the width is 31-75mm, the thickness is 31-75mm, and the angle with the horizontal direction is 25°-35°; the upper part of the short flow plate 3 is a square barrel set vertically upward, the length of the square barrel It is 31-75mm, width is 31-75mm, height is 40-80mm, the square barrel has no top wall and bottom wall; the upper and lower parts of the short drip plate 3 are connected together by welding; the connection method of the hopper 1 and the short drip plate 3 is The straight barrel part of the lower part of the hopper 1 is vertically inserted into the straight barrel part of the short flow plate 3 from top to bottom and connected by a hinge.

The said bending and vibrating long drip plate 10 is divided into three areas: one is the accumulation area drip plate 4, the accumulation area drip plate 4 is a straight drip plate, and the accumulation area drip plate 4 is made of iron, copper or aluminum alloy. , in the shape of a straight barrel, the length of the straight barrel is 150-250mm, the width is 60-100mm, the height is 60-100mm, the thickness of the barrel wall is 2-5mm, and the angle between the drip plate 4 in the accumulation area and the horizontal direction is 30 °-40°; the second is the parabolic transition zone 5. The parabolic transition zone 5 is connected to the lower part of the drip plate 4 in the accumulation zone and connected by hinges. The parabolic transition zone 5 is made of iron, copper or aluminum alloy, and is in the shape of a curved barrel. The bottom flow plate of the parabolic transition zone 5 is made of 2-5mm thick iron plate, copper plate or aluminum alloy plate, and two iron plates, copper plates or Aluminum alloy plate to form a curved side wall, and then weld a curved iron plate, copper plate or aluminum alloy plate with a thickness of 2-5mm on the inside of the top edge of the curved side wall to form the top wall, thereby forming a curved barrel-shaped parabolic transition zone 5, parabolic The length of the transition zone 5 is 100-200mm; the third is the accelerating plate 6, the accelerating plate 6 is located below the parabolic transition zone 5, and the lower part of the parabolic transition zone 5 is inserted from the upper part of the accelerating plate 6 during installation. Hinged connection, the accelerating plate 6 is made of iron, copper or aluminum alloy, in the shape of a straight barrel, and the length of the accelerating plate 6 is 500-700mm; The chute 7 is made of acrylic, with a length of 300-500mm and a thickness of 5-10mm. The angle between the vibration chute 7 and the horizontal direction is 65°-75°. Circular grooves, the diameter of the semicircular grooves is 3-5mm, the adjacent semicircular grooves are closely connected, there is no transition area in the middle, the upper surface of the vibration chute 7 is parallel to the inner surface of the accelerating flow plate 6, and the two Connected together by way of chute, a vibration motor is set at the lower end of the vibration chute 7. Driven by the vibration motor, the vibration chute 7 can vibrate along the length of the acceleration plate 6, and the vibration frequency of the vibration chute 7 is 250-350HZ , the amplitude is 1-2mm. The functions of the three areas of the bending and vibrating long dripping plate 10 are: the dripping plate 4 in the accumulation area can adjust the posture of the rice grains, so that the long axis of the rice grains can be adjusted to be parallel to the flow direction of the grain flow; the parabolic transition area 5 can make the particles Continue to adjust the attitude and gradually transition to the vibration area with the chute; the accelerated flow plate 6 can make the particles with the adjusted attitude maintain the best hulling attitude, and make the particles with poor attitude forcibly adjust to the best. The particles are accelerated, and the three zones work together, so that the invention can realize that the rice grains are quickly and vertically fed into the hulling zone.

The beneficial effects of the invention are that the feeding mechanism of a rubber roller husker has a simple structure and stable operation, and in the three regions of the long-flowing plate that can be bent and vibrated, the flowing plate in the accumulation area can realize the adjustment of the posture of the rice grains, so that the The long axis of the rice grain is adjusted to be parallel to the flow direction of the grain flow; the parabolic transition zone can make the grain posture continue to adjust and gradually transition to the vibration area with the chute; the accelerated flow plate can keep the grain with the adjusted posture in the best hulling posture. The three regions work together, so that the invention can realize that the rice grains are quickly and vertically fed into the hulling region.

Description of drawings

Below in conjunction with accompanying drawing, the present invention is further described:

Figure 1 is a schematic diagram of the overall structure of the feeding mechanism of a rubber roller husker

Figure 2 is a theoretical diagram of the design of the dripping plate of the feeding mechanism of a rubber roller husker

Figure 3 is a qualitative effect diagram of an example of the feeding mechanism of a rubber roller husker

Figure 4 is an example quantitative effect diagram of the feeding mechanism of a rubber roller husker

In the figure, 1. hopper, 2. hopper discharge control plate, 3. short flow plate, 4. accumulation area flow plate, 5. parabolic transition area, 6. accelerated flow plate, 7. vibration chute, 8. vibration Enlarged view of the main view of the chute, 9. Enlarged view of the side view of the vibrating chute, 10. Bending and vibrating the long-running board.

Detailed ways

Example 1

As shown in Fig. 1, a feeding mechanism of a rubber roller husker includes a hopper 1, a short dripping plate 3 and a bending and vibrating long dripping plate 10. The hopper 1 is made of iron, copper or aluminum alloy, and the thickness of the wall is 1-5mm. The hopper 1 is divided into three parts: the upper part, the middle part and the lower part. The upper part of the hopper 1 is a cube. Both are 150-250mm, the cube has no top wall, and is used for charging; the middle of hopper 1 is a cone, the upper part of the cone of hopper 1 is square, the length and width of the square are 150-250mm, and the lower part of the cone of hopper 1 is It is square, and the length and width of the square are 30-70mm; the lower part of the hopper 1 is a square barrel, the length, width and height of the square barrel are 30-70mm, and the square barrel has no top wall and bottom wall; the upper part of the hopper 1, The adjacent parts of the middle part and the lower part are connected together by welding to form a barrel shape with a large upper mouth and a small lower mouth and both upper and lower openings. There is a square hole with a height of 2-5mm and a width of 20-50mm on the corresponding two side walls of the connection between the cone of the hopper 1 and the square barrel. Board 2, hopper discharge control board 2 is made of iron, copper or aluminum alloy, solid, with a thickness of 1.9-4.9mm, a length of 40-60mm, and a width of 19-49mm. The short-drain plate 3 is divided into two parts: the upper part and the lower part. The lower part of the short-drain plate 3 is made of iron, copper or aluminum alloy, and the thickness of the wall is 1-5mm, which is in the shape of a straight barrel. The length is 150-250mm, the width is 31-75mm, the thickness is 31-75mm, and the angle with the horizontal direction is 25°-35°; the upper part of the short flow plate 3 is a square barrel set vertically upward, the length of the square barrel It is 31-75mm, width is 31-75mm, height is 40-80mm, the square barrel has no top wall and bottom wall; the upper and lower parts of the short drip plate 3 are connected together by welding; the connection method of the hopper 1 and the short drip plate 3 is The straight barrel part of the lower part of the hopper 1 is vertically inserted into the straight barrel part of the short flow plate 3 from top to bottom and connected by a hinge. The said bending and vibrating long drip plate 10 is divided into three areas: one is the accumulation area drip plate 4, the accumulation area drip plate 4 is a straight drip plate, and the accumulation area drip plate 4 is made of iron, copper or aluminum alloy. , in the shape of a straight barrel, the length of the straight barrel is 150-250mm, the width is 60-100mm, the height is 60-100mm, the thickness of the barrel wall is 2-5mm, and the angle between the drip plate 4 in the accumulation area and the horizontal direction is 30 °-40°; the second is the parabolic transition zone 5. The parabolic transition zone 5 is connected to the lower part of the drip plate 4 in the accumulation zone and connected by hinges. The parabolic transition zone 5 is made of iron, copper or aluminum alloy, and is in the shape of a curved barrel. The bottom flow plate of the parabolic transition zone 5 is made of 2-5mm thick iron plate, copper plate or aluminum alloy plate, and two iron plates, copper plates or Aluminum alloy plate to form a curved side wall, and then weld a curved iron plate, copper plate or aluminum alloy plate with a thickness of 2-5mm on the inside of the top edge of the curved side wall to form the top wall, thereby forming a curved barrel-shaped parabolic transition zone 5, parabolic The length of the transition zone 5 is 100-200mm; the third is the accelerating plate 6, the accelerating plate 6 is located below the parabolic transition zone 5, and the lower part of the parabolic transition zone 5 is inserted from the upper part of the accelerating plate 6 during installation. Hinged connection, the accelerating plate 6 is made of iron, copper or aluminum alloy, in the shape of a straight barrel, and the length of the accelerating plate 6 is 500-700mm; The chute 7 is made of acrylic, with a length of 300-500mm and a thickness of 5-10mm. The angle between the vibration chute 7 and the horizontal direction is 65°-75°. Circular grooves, the diameter of the semicircular grooves is 3-5mm, the adjacent semicircular grooves are closely connected, there is no transition area in the middle, the upper surface of the vibration chute 7 is parallel to the inner surface of the accelerating flow plate 6, and the two Connected together by way of chute, a vibration motor is set at the lower end of the vibration chute 7. Driven by the vibration motor, the vibration chute 7 can vibrate along the length of the acceleration plate 6, and the vibration frequency of the vibration chute 7 is 250-350HZ , the amplitude is 1-2mm. The functions of the three areas of the bending and vibrating long dripping plate 10 are: the dripping plate 4 in the accumulation area can adjust the posture of the rice grains, so that the long axis of the rice grains can be adjusted to be parallel to the flow direction of the grain flow; the parabolic transition area 5 can make the particles Continue to adjust the attitude and gradually transition to the vibration area with the chute; the accelerated flow plate 6 can make the particles with the adjusted attitude maintain the best hulling attitude, and make the particles with poor attitude forcibly adjust to the best. The particles are accelerated, and the three areas work together, so that the invention can realize that the rice grains are quickly and vertically fed into the hulling area; the specific calculation and design of the curved and vibrating long dripping plate 10 can be combined with the design idea diagram of Fig. 2 and the formula (1 )conduct.

where v ₀ is the velocity of the top layer of rice grains in the accumulation area when they leave the accumulation area, α is the angle between the velocity v ₀ and the horizontal direction when the top layer of rice grains in the accumulation area leaves the accumulation area, β is the angle between the dripping plate and the horizontal plane in the acceleration area, t is the movement time of particles in the transition region, and b is a constant in the trajectory equation of the acceleration region. P is the tangent point between the trajectory line of the acceleration area and the transition area of the parabola. According to the size of the feeding flow, all parameters can be calculated and designed according to different requirements using formula (1). The function realization mode of the present invention is as follows: the rice grains flow out from the hopper 1 to the short flow plate 3, and are transported to the curved and vibrating long flow plate 10 through the short flow plate. Grain shear flow along the accumulation depth direction and grain shear flow along the width direction of the flow plate are naturally formed between the grains, and the grain posture is adjusted by the grain shear flow, so that the long axis of the grain is gradually parallel to the grain flow. The direction of flow, and then the grains reach the parabolic transition zone 5, so that most of the grains maintain the best posture and enter the accelerating flow plate 6. When the grains enter the accelerating flow plate 6, due to the increase of the angle between the flow plate and the horizontal direction, the grain itself Gravity accelerates the grains, and when they reach the vibrating chute 7, the grains enter the chute to maintain the best posture and flow to the hulling area, and some of the grains that do not enter the chute vibrate along the flow direction of the grain flow in the chute plate. Under the action of cutting, the posture is forcibly adjusted to enter the vibrating chute 7, and the acceleration is maintained to enter the hulling valley area, so that the grains enter the hulling valley area quickly and vertically.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Various changes and improvements fall within the scope of the claimed invention, which is defined by the appended claims and their equivalents.

Claims (3)

1. A feeding mechanism of a rubber roller husker, comprising a hopper (1), a short sag plate (3) and a long sag plate (10) that can vibrate and bend, and is characterized in that: (10) It is divided into three areas: one is the accumulation area dripping plate (4), the accumulation area dripping plate (4) is a straight dripping plate, the accumulation area dripping plate (4) is iron, copper or aluminum alloy, It is in the shape of a straight barrel. The length of the straight barrel is 150-250mm, the width is 60-100mm, the height is 60-100mm, and the thickness of the barrel wall is 2-5mm. The angle between the drip plate (4) in the accumulation area and the horizontal direction is 30°-40°; the second is the parabolic transition zone (5), the parabolic transition zone (5) is connected to the lower part of the flow plate (4) in the accumulation zone and connected by hinges, and the parabolic transition zone (5) is made of iron, copper or Aluminum alloy, in the shape of a curved barrel, the bottom flow plate of the parabolic transition zone (5) is made of 2-5mm thick iron plate, copper plate or aluminum alloy plate, and two sides of the bottom flow plate are welded with a height of 60-100mm, Iron plate, copper plate or aluminum alloy plate with a thickness of 2-5mm to form a curved side wall, and then weld a curved iron plate, copper plate or aluminum alloy plate with a thickness of 2-5mm on the inside of the top edge of the curved side wall to form a top wall, thereby A parabolic transition zone (5) in the shape of a curved barrel is formed, and the length of the parabolic transition zone (5) is 100-200 mm; the third is the acceleration flow plate (6), and the acceleration flow plate (6) is located below the parabolic transition zone (5), During installation, the lower part of the parabolic transition zone (5) is inserted into the accelerating plate (6) from the upper part of the accelerating plate (6) and connected by hinges. The accelerating plate (6) is made of iron, copper or aluminum alloy and is straight barrel shape, and the length of the accelerating plate (6) is 500-700mm; the inner surface of the bottom wall of the accelerating plate (6) is provided with a vibration chute (7), and the vibration chute (7) is made of acrylic with a length of 300-500mm, The thickness is 5-10mm, the angle between the vibration chute (7) and the horizontal direction is 65°-75°, and a plurality of semicircular grooves are arranged on the upper surface of the vibration chute (7). The diameter of the groove is 3-5mm, the adjacent semi-circular grooves are closely connected, and there is no transition area in the middle. The upper surface of the vibration chute (7) is parallel to the inner surface of the acceleration chute (6), and the two are connected by a slide way. Together, a vibration motor is arranged at the lower end of the vibration chute (7), the vibration frequency of the vibration chute (7) is 250-350HZ, and the amplitude is 1-2mm; the upper, middle and lower parts of the hopper (1) pass through adjacent parts. They are connected together by welding; there is a square hole with a height of 2-5mm and a width of 20-50mm on the corresponding two side walls of the connection between the cone of the hopper (1) and the square barrel, and a hopper discharger is inserted into the square hole. The material control board (2); the connection method of the hopper (1) and the short flow plate (3) is that the straight barrel part at the lower part of the hopper (1) is vertically inserted into the straight barrel part of the short flow plate (3) from top to bottom and passes through the Hinged connection. 2. a kind of rubber roller husker feeding mechanism according to claim 1 is characterized in that: described hopper (1) is iron, copper or aluminum alloy, and the thickness of the wall is 1-5mm, The hopper (1) is divided into three parts: the upper part, the middle part and the lower part. The upper part of the hopper (1) is a cube. The length, width and height of the cube are 150-250mm. The cube has no top wall and is used for charging; the hopper (1) The middle part of the hopper (1) is a cone, the upper part of the hopper (1) cone is square, the length and width of the square are 150-250mm, the lower part of the hopper (1) cone is square, and the length and width of the square are 30-70mm; The lower part of the hopper (1) is a square barrel, the length, width and height of the square barrel are all 30-70mm, and the square barrel has no top wall and bottom wall; the hopper discharge control board (2) is made of iron, copper or aluminum Alloy, the thickness is 1.9-4.9mm, the length is 40-60mm, and the width is 19-49mm. 3. A kind of rubber roller husker feeding mechanism according to claim 1, it is characterized in that: described short flow plate (3) is divided into upper part and lower part two parts, and the lower part of short flow plate (3) is Iron, copper or aluminum alloy, the thickness of the wall is 1-5mm, in the shape of a straight barrel, the length of the lower part of the short drip plate (3) is 150-250mm, the width is 31-75mm, and the thickness is 31-75mm. The included angle in the horizontal direction is 25°-35°; the upper part of the short flow plate (3) is a square barrel set vertically upward, the length of the square barrel is 31-75mm, the width is 31-75mm, the height is 40-80mm, and the square The barrel has no top and bottom walls; the upper and lower parts of the short baffle (3) are joined together by welding.

Images