Rice knife lifting adjusting structure

Abstract

The utility model provides a rice knife lifting adjustment structure, including rice mill main part, rice knife and adjustment assembly, the inside fixed beam of rice mill main part, the inside rice knife of beam is provided, is connected with a plurality of bolts of interval distribution along the length direction of beam rotation on the beam, every bolt all is with beam axial location, the screw rod department of every bolt all is with one of the threaded holes set up on the rice knife screw thread connection, adjustment assembly is connected on the outer wall of rice mill main part, adjustment assembly is used to drive a plurality of bolts to rotate to make the rice knife displacement relative to beam, and the interval between rice knife and the roll located in the inside of rice mill main part is adjusted, the utility model discloses when the wear and tear condition is produced to the rice knife after applying to the rice mill, need not to replace the rice knife to can reduce the replacement cost of rice knife.

Description

Technical Field

[0001] This utility model relates to the field of rice milling machine technology, and more specifically, to a rice knife lifting and adjusting structure. Background Technology

[0002] A rice milling machine is a mechanical device that removes the outer husk of rice, processing brown rice into white rice while separating rice, bran, and broken rice. During the processing of brown rice using rice milling machines currently on the market, the rice blades located inside the machine are prone to wear. When the rice blades are worn, they can only be replaced, which results in high replacement costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rice knife lifting and adjusting structure, which, when applied to a rice milling machine, eliminates the need to replace the rice knife when it becomes worn, thereby reducing the replacement cost of the rice knife.

[0004] This utility model provides a rice knife lifting and adjusting structure, including a rice milling machine body, a rice knife, and an adjusting component; a crossbeam is fixed to the inner side of the rice milling machine body, the rice knife is set on the inner side of the crossbeam, and several bolts are rotatably connected to the crossbeam at intervals along the length of the crossbeam, each bolt is axially limited with the crossbeam, and the threaded part of each bolt is threadedly connected to one of the threaded holes on the rice knife; the adjusting component is connected to the outer wall of the rice milling machine body, and the adjusting component is used to drive the several bolts to rotate so that the rice knife is displaced relative to the crossbeam, and to adjust the distance between the rice knife and the milling roller located inside the rice milling machine body.

[0005] By adopting the above structure, when the rice blades in the rice milling machine are worn, the adjusting component can move the rice blades towards the side of the milling roller and closer to the milling roller, thereby compensating for the wear of the rice blades and keeping the distance between the rice blades and the milling roller within the required size range. That is, under the action of the above structure, when the rice blades are worn, there is no need to replace them, thereby reducing the replacement cost of the rice blades.

[0006] The adjustment assembly includes a support plate, a movable plate, and two cylinders. The support plate is fixed to the outer wall of the rice milling machine body, the movable plate is located outside the support plate, and the two cylinders are symmetrically fixed to the movable plate. The piston rods of the two cylinders are fixed to the support plate. A DC geared motor corresponding to several bolts is fixed on the movable plate. A transmission rod is coaxially connected to the output shaft of each DC geared motor. The inner end of each transmission rod moves through the support plate and is coaxially fixed with a nut sleeve. When the two cylinders drive the movable plate to approach the support plate, each nut sleeve is used to engage with the head of the bolt at the corresponding position and circumferentially limit its movement. Each DC geared motor drives the corresponding bolt to rotate through the transmission rod and the nut sleeve.

[0007] Each drive rod is connected to the output shaft of the DC geared motor via a coupling at the end facing the DC geared motor.

[0008] Each transmission rod is fitted with a spring, one end of which abuts against the support plate, and the other end of which abuts against the coupling at the corresponding position.

[0009] Each transmission rod is fitted with a first linear bearing between itself and the support plate, and each transmission rod is slidably connected to the support plate through the corresponding first linear bearing.

[0010] The adjustment assembly also includes two electronic rulers fixed symmetrically on the movable plate. The probes of each electronic ruler are movably inserted into the support plate. The rice knife is fixed with pins that correspond one-to-one with the probes. The end of each pin away from the rice knife moves through the crossbeam and extends out of the crossbeam. When the two cylinders drive the movable plate to approach the support plate, the inner end of each probe abuts against the end of the corresponding probe away from the rice knife.

[0011] Each probe is fitted with a second linear bearing between itself and the support plate, and each probe is slidably connected to the support plate through the corresponding second linear bearing.

[0012] A telescopic protective cover is installed between the movable plate and the support plate; the two ends of the protective cover are fixed to the edge of the movable plate and the edge of the support plate, respectively. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 for Figure 1 A magnified structural diagram of point A in the middle. Detailed Implementation

[0014] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0015] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0016] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] See Figures 1-2 As shown in the figure, this application discloses a rice knife lifting and adjusting structure, including a rice milling machine body 1, a rice knife 2, and an adjusting component; a crossbeam 3 is fixed on the inner side of the rice milling machine body 1, the rice knife 2 is disposed on the inner side of the crossbeam 3, and a plurality of bolts 4 are rotatably connected to the crossbeam 3 at intervals along the length direction of the crossbeam 3, each bolt 4 is axially limited with the crossbeam 3, and the threaded part of each bolt 4 is threadedly connected to one of the threaded holes 21 disposed on the rice knife 2; the adjusting component is connected to the outer wall of the rice milling machine body 1, and the adjusting component is used to drive the plurality of bolts 4 to rotate so that the rice knife 2 is displaced relative to the crossbeam 3, and to adjust the distance between the rice knife 2 and the milling roller 11 located inside the rice milling machine body 1.

[0019] The adjustment assembly includes a support plate 5, a movable plate 6, and two cylinders 7. The support plate 5 is fixed to the outer wall of the rice milling machine body 1. The movable plate 6 is located on the outside of the support plate 5. The two cylinders 7 are symmetrically fixed to the movable plate 6, and the piston rods of the two cylinders 7 are fixed to the support plate 5. A DC geared motor 8, corresponding to several bolts 4, is fixed on the movable plate 6. A transmission rod 9 is coaxially connected to the output shaft of each DC geared motor 8. The inner end of each transmission rod 9 movably passes through the support plate 5 and is coaxially fixed with a nut sleeve 91. When the two cylinders 7 drive the movable plate 6 to approach the support plate 5, each nut sleeve 91 is used to engage with the head of the corresponding bolt 4 and circumferentially limit its movement. Each of the DC geared motors 8 drives the corresponding bolts 4 to rotate via the transmission rod 9 and the nut sleeve 91. With this adjustment assembly, when the two cylinders drive the movable plate close to the support plate, each nut sleeve can engage with the head of the bolt at the corresponding position and be circumferentially limited. Subsequently, each DC geared motor can drive the corresponding bolt to rotate via the transmission rod and the nut sleeve. At this time, the rice knife can be displaced relative to the crossbeam (since each bolt is axially limited to the crossbeam, and since the threaded part of each bolt is threaded to one of the threaded holes on the rice knife, the rice knife can be displaced relative to the crossbeam when the bolt rotates), which means that the distance between the rice knife and the milling roller located inside the rice milling machine body can be adjusted.

[0020] Each transmission rod 9 is connected to the output shaft of the DC geared motor 8 via a coupling 92 at one end. With this structure, each transmission rod can be reliably connected to the output shaft of the corresponding DC geared motor via a coupling, meaning that each DC geared motor can reliably drive the corresponding transmission rod to rotate.

[0021] Each transmission rod 9 is fitted with a spring 93. One end of each spring 93 abuts against the support plate 5, and the other end of each spring 93 abuts against the coupling 92 at the corresponding position. With the springs, when the cylinder drives the movable plate to move away from the support plate to reset, that is, when the movable plate drives the DC geared motor, coupling, transmission rod and nut sleeve to move and reset, the springs can apply a restoring force to the coupling, thereby making the movement and reset of the DC geared motor, coupling, transmission rod and nut sleeve smoother.

[0022] Each transmission rod 9 is fitted with a first linear bearing 51 between itself and the support plate 5. Each transmission rod 9 is slidably connected to the support plate 5 through a corresponding first linear bearing 51. With this structure, when the cylinder drives the movable plate, DC geared motor, coupling, transmission rod and nut sleeve to move, the friction between the transmission rod and the support plate can be avoided under the action of the first linear bearing, so that the movement of the transmission rod relative to the support plate is smoother. In addition, wear on the transmission rod and the support plate can also be avoided.

[0023] The adjustment assembly also includes two electronic rulers 10 fixed symmetrically on the movable plate 6. The probes 101 of each electronic ruler 10 are movably inserted into the support plate 5. The rice knife 2 is fixed with a pin 22 corresponding to each probe 101. The end of each pin 22 away from the rice knife 2 moves through the crossbeam 3 and extends out of the crossbeam 3. When the two cylinders 7 drive the movable plate 6 to move closer to the support plate 5, the inner end of each probe 101 abuts against the end of the corresponding probe 101 away from the rice knife 2. With this structure, when the rice knife is driven to move relative to the crossbeam under the action of the DC geared motor, transmission rod, nut sleeve and bolt, the electronic ruler can monitor the displacement of the rice knife in real time under the action of the pins and probes. This makes it easy for the control unit in the rice milling machine to obtain and display the displacement of the rice knife. After the rice knife reaches the target position, the control unit can stop driving the DC geared motor.

[0024] Each probe 101 is fitted with a second linear bearing 52 between itself and the support plate 5. Each probe 101 is slidably connected to the support plate 5 through the corresponding second linear bearing 52. With this structure, under the action of the second linear bearing, the movement of the probe relative to the support plate is smoother and wear between the probe and the support plate can be avoided.

[0025] A telescopic protective cover 20 is provided between the movable plate 6 and the support plate 5; the two ends of the protective cover 20 are fixed to the edge of the movable plate 6 and the edge of the support plate 5, respectively; by setting the protective cover, the protective cover can prevent personnel's hands from contacting the cylinder, transmission rod and electronic ruler located between the movable plate and the support plate, thereby eliminating safety hazards, and the protective cover can prevent dust from entering between the movable plate and the support plate, thereby preventing the cylinder, transmission rod and electronic ruler from being worn by dust.

[0026] In use, when the rice blades in the rice milling machine show signs of wear, the cylinder first drives the movable plate to move towards the side closer to the support plate. Each nut sleeve engages with the head of the corresponding bolt and provides circumferential positioning. Then, each DC geared motor drives the corresponding bolt to rotate via the transmission rod and nut sleeve. This causes the rice blade to shift relative to the crossbeam, adjusting the distance between the rice blade and the milling roller inside the rice milling machine. Simultaneously, with the cooperation of the ejector pin and probe, the electronic ruler monitors the displacement of the rice blade in real time, allowing the control unit in the rice milling machine to obtain and display the displacement. Once the rice blade reaches the target position, the control unit stops driving the DC geared motor. After the distance between the rice blade and the milling roller is adjusted, the cylinder drives the movable plate to move away from the support plate to reset. At this point, the DC geared motor, transmission rod, nut sleeve, and electronic ruler reset.

[0027] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rice knife lifting and adjusting structure, characterized in that: The rice milling machine includes a main body (1), a rice knife (2), and an adjustment assembly. A crossbeam (3) is fixed to the inner side of the main body (1). The rice knife (2) is located on the inner side of the crossbeam (3). Several bolts (4) are rotatably connected to the crossbeam (3) at intervals along the length of the crossbeam (3). Each bolt (4) is axially limited to the crossbeam (3). The threaded part of each bolt (4) is threadedly connected to one of the threaded holes (21) on the rice knife (2). The adjustment assembly is connected to the outer wall of the main body (1). The adjustment assembly is used to drive several bolts (4) to rotate so that the rice knife (2) is displaced relative to the crossbeam (3) and to adjust the distance between the rice knife (2) and the milling roller (11) located inside the main body (1).

2. The rice knife lifting and adjusting structure according to claim 1, characterized in that: The adjustment assembly includes a support plate (5), a movable plate (6), and two cylinders (7); the support plate (5) is fixed to the outer wall of the rice milling machine body (1), the movable plate (6) is located on the outside of the support plate (5), and the two cylinders (7) are fixed symmetrically on the movable plate (6), with the piston rods of the two cylinders (7) fixed to the support plate (5); a DC geared motor (8) corresponding to a number of bolts (4) is fixed on the movable plate (6), and each DC geared motor... Each geared motor (8) has a transmission rod (9) coaxially connected to its output shaft. The inner end of each transmission rod (9) is movably inserted through the support plate (5) and then coaxially fixed with a nut sleeve (91). When the two cylinders (7) drive the movable plate (6) to approach the support plate (5), each nut sleeve (91) is used to engage with the head of the bolt (4) at the corresponding position and circumferentially limit it. Each DC geared motor (8) drives the corresponding bolt (4) to rotate through the transmission rod (9) and the nut sleeve (91).

3. The rice knife lifting and adjusting structure according to claim 2, characterized in that: Each of the transmission rods (9) is connected to the output shaft of the DC geared motor (8) via a coupling (92) at one end facing the DC geared motor (8).

4. The rice knife lifting and adjusting structure according to claim 3, characterized in that: Each of the transmission rods (9) is fitted with a spring (93) on its outside. One end of each spring (93) abuts against the support plate (5), and the other end of each spring (93) abuts against the coupling (92) at the corresponding position.

5. The rice knife lifting and adjusting structure according to claim 2, characterized in that: Each of the transmission rods (9) is fitted with a first linear bearing (51) between it and the support plate (5), and each of the transmission rods (9) is slidably connected to the support plate (5) through the corresponding first linear bearing (51).

6. The rice cutter lifting and adjusting structure according to any one of claims 2-5, characterized in that: The adjustment assembly also includes two electronic rulers (10) fixed symmetrically on the movable plate (6). The probes (101) of each electronic ruler (10) are movably inserted into the support plate (5). The rice knife (2) is fixed with pins (22) that correspond one-to-one with the probes (101). The end of each pin (22) away from the rice knife (2) is movably inserted through the crossbeam (3) and extends out of the crossbeam (3). When the two cylinders (7) drive the movable plate (6) to approach the support plate (5), the inner end of each probe (101) abuts against the end of the corresponding probe (101) away from the rice knife (2).

7. The rice knife lifting and adjusting structure according to claim 6, characterized in that: Each of the probes (101) is fitted with a second linear bearing (52) between it and the support plate (5), and each of the probes (101) is slidably connected to the support plate (5) through the corresponding second linear bearing (52).

8. The rice knife lifting and adjusting structure according to claim 2, characterized in that: A telescopic protective cover (20) is provided between the movable plate (6) and the support plate (5); the two ends of the protective cover (20) are fixed to the edge of the movable plate (6) and the edge of the support plate (5), respectively.

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