CN220547022U - Rice crushing device - Google Patents

Abstract

The utility model discloses a rice crushing device, which comprises: the top of the body is provided with a feed hopper; the inside of the body is sequentially provided with a primary crushing assembly, a secondary crushing assembly and a discharge hole from top to bottom; the first-stage crushing assembly comprises a pair of first-stage crushing rollers and a crushing cavity which are driven to rotate by a motor, the second-stage crushing assembly comprises a second-stage crushing head and a second-stage crushing wall which can coaxially and reversely rotate with the second-stage crushing head, and the bottom of the second-stage crushing head is connected with the output end of the driving piece through a vertical shaft; the filter screen is obliquely arranged inside the body and is positioned between the primary crushing assembly and the secondary crushing assembly; the body at the lowest inclined end of the filter screen is provided with a blanking port communicated with the reflux box; the inside rotatable supplementary crushing roller of installing of backward flow case, backward flow case bottom with the inside intercommunication of body. The utility model provides a rice crushing device which has good crushing effect and effectively reduces the occurrence of jamming and dead jamming of the crushing device.

Description

Rice crushing device

Technical Field

The utility model relates to the technical field of rice crushing, in particular to a rice crushing device.

Background

In the rice processing process, the rice is often required to be crushed, for example, in the process of producing instant rice, the rice is crushed, quenched and tempered, cured, dried and the like to prepare an instant rice finished product.

In the prior art, rice is generally put into a crushing device, and the rice is crushed under the action of a roller or a crushing gear. Chinese patent CN218012970U discloses a rice milling and crushing device for rice flour processing, and it includes the processing case, all fixed welding has the support around the lower surface of processing case, put the thing groove on one side of the processing case surface and offered, the upper surface of processing case is provided with milling mechanism, just the upper surface fixed mounting of processing case has into rice bucket, advance rice bucket and be provided with two altogether, two advance rice bucket and be located milling mechanism's both sides respectively, and two advance rice bucket's inside and all be provided with garrulous rice mechanism, the inside of processing case is provided with branch sieve mechanism, the concave groove has all been offered in the surface of processing case both sides throughout. It is through the milling machine who sets up constructs and garrulous rice mechanism, uses through the cooperation of motor two with first crushing roller and second crushing roller, can carry out preliminary crushing with the rice that gets into the rice fill, and the kibbling rice can carry out secondary grinding with it through grinding disc and grinding roller's grinding again afterwards, makes the efficiency of garrulous rice higher through machinery replacement manual work, also reduces the burden of manual work.

However, in the above patent, when the first grinding roller and the second grinding roller primarily grind rice, there are any materials with larger particles (non-broken rice or broken into larger particles) which fall together between the grinding disc and the grinding roller, which easily causes phenomena such as blockage and even jamming, and reduces grinding efficiency.

Disclosure of Invention

It is an object of the present utility model to address at least the above problems and/or disadvantages and to provide at least the advantages described below.

In order to solve the defects in the prior art, the utility model provides a rice crushing device, which comprises:

the top of the body is provided with a feed hopper; the inside of the body is sequentially provided with a primary crushing assembly, a secondary crushing assembly and a discharge hole from top to bottom; the first-stage crushing assembly comprises a pair of first-stage crushing rollers and a crushing cavity which are driven to rotate by a motor, the second-stage crushing assembly comprises a second-stage crushing head and a second-stage crushing wall which can coaxially and reversely rotate with the second-stage crushing head, and the bottom of the second-stage crushing head is connected with the output end of the driving piece through a vertical shaft;

the filter screen is obliquely arranged inside the body and is positioned between the primary crushing assembly and the secondary crushing assembly; the filter screen shakes under the action of the vibrating mechanism, and the body at the lowest inclined end of the filter screen is provided with a blanking port communicated with the reflux box;

the inside of the reflux box is rotatably provided with an auxiliary crushing roller with crushing teeth distributed on the surface, and the bottom of the reflux box is communicated with the inside of the body through a reflux port;

and the conveying auger is positioned at the bottom in the reflux box and is used for pushing materials into the body.

Further, the driving piece comprises a first driving motor and a transmission shaft, the transmission shaft is connected with the output end of the first driving motor, a first bevel gear is coaxially fixed on the transmission shaft, the bottom end of the vertical shaft extends out of the body and is fixedly connected with a second bevel gear, and the second bevel gear is meshed and connected with the first bevel gear.

Further, the top of the secondary grinding wall is rotatably arranged on an upper supporting seat, the bottom of the secondary grinding wall is rotatably arranged on a lower supporting seat, the upper supporting seat and the lower supporting seat are fixedly connected with the inner side wall of the body respectively, and the top surface of the upper supporting seat is a drainage surface inclined towards the grinding gap between the secondary grinding head and the secondary grinding wall; the periphery of the secondary grinding wall is fixedly provided with a third bevel gear, the third bevel gear is meshed with a fourth bevel gear, the fourth bevel gear is coaxially fixed with a transverse shaft, and the transverse shaft penetrates out of the body and is in transmission connection with the transmission shaft through a second transmission belt.

Further, a guide plate inclined to the discharge port is arranged at the inner bottom of the body, and the guide plate is positioned above the second bevel gear and the first bevel gear.

Further, the vibration mechanism comprises a vibrator arranged at the bottom of the filter screen, one end of the filter screen is provided with a tongue plate, the tongue plate stretches into a mounting groove on the inner side wall of the body, the bottom of the tongue plate is connected with the bottom of the mounting groove through a first buffer spring, and an elastomer is arranged between the top of the tongue plate and the top of the mounting groove; the other end of the filter screen extends into the reflux box through the blanking port, and the bottom of the filter screen is connected with the bottom wall of the blanking port through a second buffer spring.

Further, carry the auger including conveying axle and conveying blade, backflow mouth department is connected with stretches into the inside conveyer pipe of body, the bottom of conveyer pipe is seted up and is located the cloth mouth of second grade grinding head top, the one end rotatable of conveying axle is installed on the end wall of conveyer pipe, its other end stretches out backflow case and second driving motor's output shaft, conveying blade is the heliciform setting and is in on the conveying axle.

Further, the auxiliary crushing roller is installed and sleeved on a driving shaft, and the driving shaft extends out of the backflow box and is in transmission connection with the conveying shaft through a first transmission belt.

The utility model at least comprises the following beneficial effects: the main body provides a crushing environment, so that powder in the process of crushing the rice is prevented from drifting into the outside air; the feeding hopper is used for throwing the rice to be crushed into the body, the first-stage crushing roller is used for primarily crushing the rice for the first time, the second-stage crushing head and the second-stage crushing wall are used for secondarily grinding and crushing the crushed rice, so that the crushing effect of the rice is ensured, and the second-stage crushing head and the second-stage crushing wall can coaxially and reversely rotate, so that the grinding fineness of the crushed rice is improved, and the crushing effect is further enhanced; in the process, the filter screen is used for filtering and screening the primarily crushed rice, so that the crushed rice meeting the particle size requirement directly falls onto the secondary crushing assembly through the filter screen to be crushed secondarily, the blockage of the secondary crushing assembly caused by the crushed rice with larger particles is avoided, and the condition that the crushing device is blocked is prevented; meanwhile, the inclined arrangement of the filter screen is beneficial to draining large-particle broken rice which is intercepted on the filter screen and does not accord with the particle size into the reflux box, the auxiliary crushing roller in the reflux box carries out secondary crushing operation on the large-particle broken rice, the conveying auger is used for inputting the broken rice which falls into the bottom of the reflux box into the body to enable the broken rice to fall onto the secondary crushing head so as to carry out subsequent secondary crushing, in this way, the secondary crushing processing of the large-particle broken rice is realized, the processing step of manually transferring and throwing the broken rice is omitted, the crushing processing efficiency of the broken rice is improved, and batch discharging of the broken rice is realized, so that the broken rice particles with different particle sizes fall onto the secondary crushing assembly in sequence to cause the crushing time difference, the crushing pressure of the secondary crushing assembly is effectively lightened, and the improvement of the crushing efficiency is beneficial to; the vibration mechanism provides a power source to drive the filter screen to shake, so that the condition that the filter screen is blocked is reduced.

By adopting the utility model, the rice is sequentially crushed for the first time by the first-stage crushing roller of the first-stage crushing assembly and is crushed by the second-stage crushing head of the second-stage crushing assembly in the body, thereby realizing multiple and multi-mode crushing of the rice and improving the crushing efficiency; meanwhile, broken rice primarily crushed by the stage crushing roller is filtered by the filter screen, so that the influence on crushing efficiency caused by blockage and blocking caused by falling of large-particle broken rice on the stage crushing assembly is avoided, the auxiliary crushing roller, the reflux box and the conveying assembly are matched together, the operation of crushing the intercepted large-particle broken rice again and automatically feeding is realized, labor is saved, and the integral crushing processing efficiency is facilitated.

Drawings

Fig. 1 is a schematic structural view of a rice milling apparatus of the present utility model.

Fig. 2 is a partially enlarged structural schematic view of the present utility model of fig. 1 a.

Reference numerals: 1-body, 11-feed hopper, 12-discharge port, 13-blanking port, 14-return port, 15-mounting groove, 2-first crushing component, 21-first crushing roller, 22-crushing cavity, 3-second crushing component, 31-second crushing head, 311-vertical shaft, 312-second bevel gear, 32-second crushing wall, 321-third bevel gear, 33-upper supporting seat, 331-drainage surface, 34-lower supporting seat, 4-driving piece, 41-first driving motor, 42-transmission shaft, 43-first bevel gear, 45-fourth bevel gear, 46-transverse shaft, 47-second transmission belt, 5-filter screen, 51-tongue plate, 6-vibrating mechanism, 61-vibrator, 62-first buffer spring, 63-elastomer, 64-second buffer spring, 7-return tank, 71-auxiliary crushing roller, 72-crushing tooth, 73-driving shaft, 75-first transmission belt, 8-transmission auger, 81-transmission shaft, 82-transmission blade, 83-second driving motor, 9-deflector, 10-transmission pipe, 101-cloth port.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Referring to fig. 1 to 2, a rice milling apparatus includes:

the rice crusher comprises a body 1, wherein a feed hopper 11 is arranged at the top of the body 1, the body 1 provides a crushing environment, powder in the rice crushing process is prevented from drifting into the outside air, and the feed hopper 11 is used for throwing rice to be crushed into the body 1; a primary crushing assembly 2, a secondary crushing assembly 3 and a discharge hole 12 are sequentially arranged in the body 1 from top to bottom; the primary crushing assembly 2 comprises a pair of primary crushing rollers 21 driven by a motor (not shown) to rotate and a crushing cavity 22 with openings at two ends, the primary crushing rollers 21 are positioned in the crushing cavity 22, the secondary crushing assembly 3 comprises a secondary crushing head 31 and a secondary crushing wall 32 which can coaxially and reversely rotate with the secondary crushing head 31, and the bottom of the secondary crushing head 31 is connected with the output end of the driving piece 4 through a vertical shaft 311; the two-stage grinding head 31 and the two-stage grinding wall 32 can coaxially and reversely rotate, which is beneficial to improving the grinding fineness of the broken rice and further enhancing the grinding effect;

the filter screen 5 is obliquely arranged inside the body 1 and is positioned between the primary crushing assembly 2 and the secondary crushing assembly 3; the filter screen 5 shakes under the action of the vibration mechanism 6, and the body 1 at the inclined lowest end of the filter screen 5 is provided with a blanking port 13 communicated with the reflux box 7;

an auxiliary crushing roller 71 with crushing teeth 72 distributed on the surface is rotatably arranged in the reflux box 7, and the bottom of the reflux box 7 is communicated with the inside of the body 1 through a reflux port 14;

and a conveying auger 8 is positioned at the bottom of the reflux box 7 and is used for pushing materials into the body 1.

Specifically, the primary grinding roller 21 of the primary grinding assembly 2 carries out primary grinding on the rice, the secondary grinding head 31 and the secondary grinding wall 32 carry out secondary grinding on the crushed rice, the grinding effect of the rice is ensured, in the process, the filter screen 5 is used for filtering and screening the primarily-ground crushed rice, so that the crushed rice meeting the particle size requirement directly falls onto the secondary grinding assembly 3 through the filter screen 5 for secondary grinding, the phenomenon that the secondary grinding assembly 3 is blocked by the crushed rice with larger particles is avoided, and the phenomenon that the grinding device is blocked is prevented; the vibration mechanism 6 provides a power source to drive the filter screen 5 to shake, so that the condition that the filter screen 5 is blocked is reduced; meanwhile, the inclined arrangement of the filter screen 5 is beneficial to draining large-particle broken rice which is intercepted on the filter screen 5 and does not accord with the particle size into the reflux box 7, the auxiliary crushing roller 71 in the reflux box 7 carries out crushing operation on the large-particle broken rice again, the conveying auger 8 is used for inputting the broken rice which falls into the bottom of the reflux box 7 into the body 1 to enable the broken rice to fall onto the secondary crushing head 31 so as to carry out subsequent secondary crushing, by adopting the mode, the secondary crushing processing of the large-particle broken rice is realized, the processing steps of manually transferring and throwing the broken rice are omitted, the crushing processing efficiency of the rice is improved, batch discharging of the broken rice is realized, the broken rice particles with different particle sizes fall onto the secondary crushing assembly 3 successively to form crushing time difference, the crushing pressure of the secondary crushing assembly 3 is effectively lightened, and the crushing efficiency is beneficial to improvement.

In this embodiment, the driving member 4 includes a first driving motor 41 and a driving shaft 42, the driving shaft 42 is connected with an output end of the first driving motor 41, a first bevel gear 43 is coaxially fixed on the driving shaft 42, a bottom end of the vertical shaft 311 is fixedly connected with a second bevel gear 312, and the second bevel gear 312 is meshed with the first bevel gear 43. In use, the first drive motor 41 drives the drive shaft 42 to rotate, and the vertical shaft 311 is rotated under the cooperation of the first bevel gear 43 and the second bevel gear 312, so as to drive the secondary grinding head 31 to rotate.

Further, the top of the secondary grinding wall 32 is rotatably mounted on an upper support seat 33, the bottom thereof is rotatably mounted on a lower support seat 34, the upper support seat 33 and the lower support seat 34 are fixedly connected with the inner side wall of the main body 1 respectively, and the top surface of the upper support seat 33 is a drainage surface 331 inclined towards the grinding gap between the secondary grinding head 31 and the secondary grinding wall 32; the periphery of the secondary grinding wall 32 is fixed with a third bevel gear 321, the third bevel gear 321 is meshed with a fourth bevel gear 45, the fourth bevel gear 45 is coaxially fixed with a transverse shaft 46, and the transverse shaft 46 penetrates out of the body 1 and is in transmission connection with the transmission shaft 42 through a second transmission belt 47. The secondary grinding wall 32 rotates coaxially and reversely with the secondary grinding head 31 under the cooperation of the transverse shaft 46, the second transmission belt 47, the third bevel gear 221 and the fourth bevel gear 45, so that the grinding and crushing effect is further enhanced, the use of a power source can be reduced, and the waste of resources is reduced; in order to protect the driving element 4, a protection box can be installed outside the body 1, and the protection box covers the first driving motor 41, the transmission shaft 42, the transverse shaft 46 and the transmission belt 47, so as to protect the transmission structure of the driving element 4.

Further, the bottom in the body 1 is provided with the guide plate 9 inclined towards the discharge hole 12, the guide plate 9 is located above the second bevel gear 43 and the first bevel gear 312, the guide plate 9 is arranged to facilitate the crushed rice material to flow to the discharge hole 12 along the inclined guide plate 9, so that the discharge is facilitated, and the guide plate 9 can shield the second bevel gear 43 and the first bevel gear 312 to play a role in protection.

Further, the vibration mechanism 6 includes a vibrator 61 mounted at the bottom of the filter screen 5, one end of the filter screen 5 is provided with a tongue plate 51, the tongue plate 51 extends into the mounting groove 15 on the inner side wall of the body 1, the bottom of the tongue plate 51 is connected with the bottom of the mounting groove 15 through a first buffer spring 62, and an elastic body 63 is arranged between the top of the tongue plate 51 and the top of the mounting groove 15; the other end of the filter screen 5 extends into the reflux box 7 through the blanking port 13, and the bottom of the filter screen 5 is connected with the bottom wall of the blanking port 13 through a second buffer spring 64. By adopting the scheme, the vibrator 61 belongs to the prior art product, and is not repeated here, the vibrator 61 provides a power source, the filter screen 5 is driven to shake, under the cooperation of the first buffer spring 62 and the second buffer spring 64, the filter screen 5 shakes smoothly, the arrangement of the elastic body 63 avoids the influence of the structural strength caused by the fact that the tongue plate 51 continuously impacts the groove top of the mounting groove 15 in the shaking process, the elastic body 63 does not obstruct the shaking movement of the tongue plate 51, meanwhile, the mounting groove can fill the gap between the upper surface of the tongue plate 51 and the top wall of the mounting groove 15, the phenomenon that broken rice falls into the gap to influence the normal shaking of the filter screen 5 is avoided, the elastic body 63 can be made of sponge materials or other elastic materials, and the method is not limited.

Further, the conveying auger 8 comprises a conveying shaft 81 and a conveying blade 82, the conveying pipe 10 extending into the body 1 is connected to the position of the backflow port 14, a material distribution port 101 located above the secondary grinding head 31 is formed in the bottom of the conveying pipe 10, one end of the conveying shaft 81 is rotatably mounted on the end wall of the conveying pipe 10, the other end of the conveying shaft extends out of the backflow box 7 and is connected with an output shaft of the second driving motor 83, and the conveying blade 82 is spirally arranged on the conveying shaft 81. During the use, the second driving motor 83 drives the conveying shaft 81 to rotate, and the pivoted conveying shaft 61 drives the conveying blade 82 to rotate in order to push the rice material of the bottom in the feed back box 7 to the conveyer pipe 10 in to avoid the material to remain in the bottom of feed back box 7, the setting of conveyer pipe 10 is convenient for carry the body 1 middle part with the rice so that the rice evenly disperses, further promotes the crushing effect of follow-up second grade crushing subassembly 3. In order to reduce the use of power sources and reduce the waste of resources, the auxiliary crushing roller 71 is sleeved on a driving shaft 73, and the driving shaft 73 extends out of the reflux tank 7 and is in transmission connection with the conveying shaft 81 through a first transmission belt 75.

Although embodiments of the present utility model have been disclosed in the foregoing description and illustrated in the drawings, it is not intended to be limited to the details and embodiments shown and described, but rather to be fully applicable to various fields of adaptation to the present utility model, and further modifications may be readily made by those skilled in the art without departing from the general concept defined by the claims and the equivalents thereof, and it is therefore apparent that the utility model is not limited to the specific details and illustrations shown and described herein, and that various changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the utility model.

Claims (7)

1. A rice milling apparatus, comprising:

a body (1) with a feed hopper (11) at the top; a primary crushing assembly (2), a secondary crushing assembly (3) and a discharge hole (12) are sequentially arranged in the body (1) from top to bottom; the primary crushing assembly (2) comprises a pair of primary crushing rollers (21) driven to rotate by a motor and crushing cavities (22) with openings at two ends, the secondary crushing assembly (3) comprises a secondary crushing head (31) and a secondary crushing wall (32) which can coaxially and reversely rotate with the secondary crushing head (31), and the bottom of the secondary crushing head (31) is connected with the output end of the driving piece (4) through a vertical shaft (311);

the filter screen (5) is obliquely arranged inside the body (1) and is positioned between the primary crushing assembly (2) and the secondary crushing assembly (3); the filter screen (5) shakes under the action of the vibrating mechanism (6), and the body (1) at the inclined lowest end of the filter screen (5) is provided with a blanking port (13) communicated with the reflux box (7);

an auxiliary crushing roller (71) with crushing teeth (72) distributed on the surface is rotatably arranged in the reflux box (7), and the bottom of the reflux box (7) is communicated with the inside of the body (1) through a reflux port (14);

and the conveying auger (8) is positioned at the inner bottom of the reflux box (7) and used for pushing materials into the body (1).

2. A rice milling device according to claim 1, wherein the driving member (4) comprises a first driving motor (41) and a driving shaft (42), the driving shaft (42) is connected with the output end of the first driving motor (41), a first bevel gear (43) is coaxially fixed on the driving shaft (42), the bottom end of the vertical shaft (311) extends out of the body (1) and is fixedly connected with a second bevel gear (312), and the second bevel gear (312) is meshed with the first bevel gear (43).

3. A rice milling device according to claim 2, characterized in that the top of the secondary milling wall (32) is rotatably mounted on an upper support seat (33), the bottom of the secondary milling wall is rotatably mounted on a lower support seat (34), the upper support seat (33) and the lower support seat (34) are fixedly connected with the inner side wall of the body (1) respectively, and the top surface of the upper support seat (33) is a drainage surface (331) inclined towards the milling gap between the secondary milling head (31) and the secondary milling wall (32); the periphery of the secondary grinding wall (32) is fixedly provided with a third bevel gear (321), the third bevel gear (321) is meshed with a fourth bevel gear (45), the fourth bevel gear (45) is coaxially fixed with a transverse shaft (46), and the transverse shaft (46) penetrates out of the body (1) to be in transmission connection with the transmission shaft (42) through a second transmission belt (47).

4. A rice milling device according to claim 2, characterized in that the bottom in the body (1) is provided with a deflector (9) inclined towards the discharge opening (12), the deflector (9) being located above the second bevel gear (312) and the first bevel gear (43).

5. A rice milling device according to claim 1, characterized in that the vibration mechanism (6) comprises a vibrator (61) arranged at the bottom of the filter screen (5), one end of the filter screen (5) is provided with a tongue plate (51), the tongue plate (51) stretches into a mounting groove (15) on the inner side wall of the body (1), the bottom of the tongue plate (51) is connected with the bottom of the mounting groove (15) through a first buffer spring (62), and an elastomer (63) is arranged between the top of the tongue plate (51) and the top of the mounting groove (15); the other end of the filter screen (5) extends into the reflux box (7) through the blanking port (13), and the bottom of the filter screen (5) is connected with the bottom wall of the blanking port (13) through a second buffer spring (64).

6. A rice milling device according to claim 1, characterized in that the conveying auger (8) comprises a conveying shaft (81) and conveying blades (82), the reflux port (14) is connected with a conveying pipe (10) extending into the main body (1), the bottom of the conveying pipe (10) is provided with a material distribution port (101) positioned above the secondary milling head (31), one end of the conveying shaft (81) is rotatably arranged on the end wall of the conveying pipe (10), the other end of the conveying shaft extends out of the output shaft of the reflux box (7) and the second driving motor (83), and the conveying blades (82) are spirally arranged on the conveying shaft (81).

7. A rice milling device according to claim 6, characterized in that the auxiliary milling roller (71) is fitted over a drive shaft (73), which drive shaft (73) extends out of the return box (7) in driving connection with the conveying shaft (81) via a first drive belt (75).