阅读说明：本技术 一种冷冻离心机 (Freezing centrifugal machine ) 是由 邓小龙 叶淑源 陈涛 于 2019-11-29 设计创作，主要内容包括：本发明属于离心机技术领域,具体的说是一种冷冻离心机；包括圆筒状的本体；本体侧壁设有保温腔,保温腔抽真空之后填充有保温岩棉；本体内设有隔板,隔板中央设有轴承座,轴承座中部开设的一号孔中转动连接有转轴,转轴顶部设有离心腔,离心腔顶部开设有进料口；本体底部中央固连有电机,电机的输出轴贯穿本体后与转轴固连；一号孔内壁圆周均布一组二号孔；二号孔底部连通有三号孔,三号孔通过管道和阀门与高压气源连通；本发明通过高压空气经二号孔向转轴喷出,在转轴与一号孔之间形成高压气隙,减少转轴转动时受到的阻力,增加离心腔的转速,防止原料离心过程中发生变质的同时提高转轴使用寿命。(The invention belongs to the technical field of centrifuges, and particularly relates to a refrigerated centrifuge; comprises a cylindrical body; the side wall of the body is provided with a heat preservation cavity, and heat preservation rock wool is filled in the heat preservation cavity after the heat preservation cavity is vacuumized; a partition plate is arranged in the body, a bearing seat is arranged in the center of the partition plate, a rotating shaft is rotatably connected in a first hole formed in the middle of the bearing seat, a centrifugal cavity is formed in the top of the rotating shaft, and a feeding hole is formed in the top of the centrifugal cavity; the center of the bottom of the body is fixedly connected with a motor, and an output shaft of the motor penetrates through the body and is fixedly connected with the rotating shaft; a group of second holes are uniformly distributed on the circumference of the inner wall of the first hole; the bottom of the second hole is communicated with a third hole, and the third hole is communicated with a high-pressure air source through a pipeline and a valve; according to the invention, high-pressure air is sprayed to the rotating shaft through the second hole, and a high-pressure air gap is formed between the rotating shaft and the first hole, so that the resistance applied to the rotating shaft during rotation is reduced, the rotating speed of the centrifugal cavity is increased, the raw material is prevented from deteriorating in the centrifugal process, and the service life of the rotating shaft is prolonged.)

1. A refrigerated centrifuge comprises a cylindrical body (1); the bottom of the body (1) is provided with support legs (11), the top of the body (1) is provided with a sealing cover (12), and the center of the top of the sealing cover (12) is provided with a handle (13); the method is characterized in that: the side wall of the body (1) is provided with a heat preservation cavity (14), and heat preservation rock wool is filled in the heat preservation cavity (14) after the heat preservation cavity (14) is vacuumized; a partition plate (5) is arranged in the body (1), a bearing seat (15) is arranged in the center of the partition plate (5), a rotating shaft (17) is rotatably connected in a first hole (16) formed in the middle of the bearing seat (15), the diameter of the rotating shaft (17) is slightly smaller than that of the first hole (16), a centrifugal cavity (18) is formed in the top of the rotating shaft (17), and a feeding hole (19) is formed in the top of the centrifugal cavity (18); the center of the bottom of the body (1) is fixedly connected with a motor (20), and the motor (20) is connected with a power supply through a controller; an output shaft of the motor (20) penetrates through the body (1) and then is fixedly connected with the rotating shaft (17); an impeller (5) is fixedly sleeved in the first hole (16) on the surface of the rotating shaft (17); the inclination direction of the impeller (5) is the same as the rotation direction of the rotating shaft (17), namely, the impeller (5) can blow air downwards in the rotation process of the rotating shaft (17); the fan blades of the impeller (5) are made of a composite material which is soft and elastic at normal temperature and gradually becomes hard when heated; the upper surfaces of the fan blades of the impeller (5) are fixedly connected with wind-shielding sheets (51) which are uniformly arranged; the wind shield sheet (51) is designed in an inclined way, namely, wind power can be blown towards the direction of the rotating shaft (17) in the rotating process of the impeller (5); the bottom of the body (1) is provided with a refrigerator (21), and the refrigerator (21) is used for ejecting low-temperature gas to reduce the temperature of a centrifugal cavity (18) above the partition plate (5); a group of second holes (22) are uniformly distributed on the circumference of the inner wall of the first hole (16), and one ends of the second holes (22) close to the first hole (16) are inclined downwards; and the bottom of the second hole (22) is communicated with a third hole (23), and the third hole (23) is communicated with a high-pressure air source through a pipeline and a valve.

2. A refrigerated centrifuge as recited in claim 1 wherein: the surface of the impeller (5) is provided with uniformly distributed turbulence holes (52); the baffle orifice (52) is designed to be inclined.

3. A refrigerated centrifuge as recited in claim 1 wherein: a sealing groove (24) is formed in the inner wall of the first hole (16) above the second hole (22), and a sealing ring (25) is arranged in the sealing groove (24); an annular cavity (26) is formed in the sealing ring (25), and the annular cavity (26) is communicated with the third hole (23) through a fourth hole (27); and a fifth hole (28) is formed in the part, close to the rotating shaft (17), below the sealing ring (25).

4. A refrigerated centrifuge as recited in claim 1 wherein: a sliding ring (3) is sleeved on the rotating shaft (17) below the partition plate (5), an annular first cavity (31) is formed in the sliding ring (3), an air inlet (32) is formed in one side of the sliding ring (3) along the radius direction, and the air inlet (32) is communicated with the refrigerator (21); a sixth hole (33) arranged along the diameter direction of the cross section of the rotating shaft (17) is formed in the position, corresponding to the first cavity (31), of the rotating shaft (17); a seventh hole (34) communicated with the sixth hole (33) is formed in the rotating shaft (17) along the axial direction of the rotating shaft (17), and the upper end of the seventh hole (34) is communicated with the inside of the body (1) above the partition plate (5) through an eighth hole (35).

5. A refrigerated centrifuge as recited in claim 1 wherein: the side wall of the centrifugal cavity (18) is provided with an arc-shaped hole (36) which is formed by casting, and the arc-shaped hole (36) is communicated with the No. seven hole (34); the top of the arc-shaped hole (36) is communicated with the inside of the body (1) above the clapboard (5) through an air outlet (37).

6. A refrigerated centrifuge as claimed in claim 4 wherein: the eight-hole (35) is a countersunk hole, and the countersunk part of the eight-hole (35) is positioned at one side close to the periphery of the rotating shaft (17); a pin (4) is arranged in the eighth hole (35), and a pin cap (41) of the pin (4) is in sealing fit with the countersunk head part of the eighth hole (35); a clamping plate (42) is arranged at one end of the pin (4) far away from the pin cap (41); a group of supports (43) are arranged on the inner wall of the eighth hole (35), and the supports (43) do not influence the air flow of the eighth hole (35); and a spring (44) is sleeved on the pin (4) between the bracket (43) and the clamping plate (42).

7. A refrigerated centrifuge as claimed in claim 6 wherein: the periphery of the centrifugal cavity (18) is uniformly provided with a group of air inducing lugs (45), and the air inducing lugs (45) are used for enabling more cold air to flow through the periphery of the centrifugal cavity (18).

Technical Field

The invention belongs to the technical field of centrifuges, and particularly relates to a refrigerated centrifuge.

Background

Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. The centrifuge is mainly used for separating solid particles from liquid in suspension, or separating two liquids which have different densities and are insoluble with each other in emulsion (for example, cream is separated from milk); it can also be used to remove liquids from wet solids, such as by spin drying clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities; some settling centrifuges can also grade solid particles according to density or granularity by utilizing the characteristic that solid particles with different densities or granularities have different settling speeds in liquid.

The centrifugal machine is widely applied to chemical, petroleum, food, pharmacy, mineral separation, coal, water treatment, ships and other departments, particularly to the manufacture of food, the centrifugal machine is driven to rotate by a motor in the centrifugal process to enable the raw material to rotate in the centrifugal machine, the separation effect is achieved by centrifugal force, but the centrifugal time of the centrifugal machine is long, namely, the rotating shaft needs to rotate for a long time to improve the centrifugal effect of the raw material, but the rotating shaft rubs in the centrifugal machine for a long time in the rotating process, the friction is large, high temperature is generated under the long-time rotation of the rotating shaft, the rotating shaft expands by the principle of expansion with heat and contraction with cold, the friction between the rotating shaft and other parts in the centrifugal machine is further improved, the rotating speed of the rotating shaft is reduced, the centrifugal efficiency is seriously influenced, meanwhile, the service life of the rotating shaft is greatly reduced under the conditions of long, meanwhile, in the centrifugal process of a large amount of food, the food is weaker in fresh-keeping capacity and longer in centrifugal time, so that the food is deteriorated in the centrifugal process, and the deterioration speed of the food is accelerated due to high heat generated by the rotating shaft.

Disclosure of Invention

The invention provides a refrigerated centrifuge, which aims to make up for the defects of the prior art and solve the problems that the centrifuge causes high-temperature expansion when a rotating shaft rotates for a long time in the raw material centrifugation process, the friction force is increased, the rotating speed is reduced to influence the raw material centrifugation effect and greatly reduce the service life of the rotating shaft, meanwhile, a large amount of food is deteriorated in the centrifugation process due to weak food preservation capacity and long centrifugation time in the centrifugation process of a large amount of food, and the deterioration speed of the food is accelerated due to high heat generated by the rotating shaft.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a refrigerated centrifuge, which comprises a cylindrical body; the bottom of the body is provided with support legs, the top of the body is provided with a sealing cover, and the center of the top of the sealing cover is provided with a handle; the side wall of the body is provided with a heat preservation cavity, and heat preservation rock wool is filled in the heat preservation cavity after the heat preservation cavity is vacuumized; a partition plate is arranged in the body, a bearing seat is arranged in the center of the partition plate, a rotating shaft is rotatably connected in a first hole formed in the middle of the bearing seat, the diameter of the rotating shaft is slightly smaller than the first hole, a centrifugal cavity is formed in the top of the rotating shaft, and a feeding hole is formed in the top of the centrifugal cavity; the center of the bottom of the body is fixedly connected with a motor 0, and the motor 0 is connected with a power supply through a controller; an output shaft of the motor 0 penetrates through the body and is fixedly connected with the rotating shaft; the surface of the rotating shaft is fixedly sleeved with an impeller in a first hole; the inclination direction of the impeller is the same as the rotation direction of the rotating shaft, namely the impeller can blow air downwards in the rotation process of the rotating shaft; the fan blades of the impeller are made of a composite material which is soft and elastic at normal temperature and gradually becomes hard when heated; the upper surfaces of the fan blades of the impeller are fixedly connected with wind-shielding sheets which are uniformly arranged; the wind shield is designed in an inclined mode, namely wind power can be blown to the direction of the rotating shaft in the rotating process of the impeller; the bottom of the body is provided with a refrigerator which is used for ejecting low-temperature gas to reduce the temperature of a centrifugal cavity above the partition plate; a group of second holes are uniformly distributed on the circumference of the inner wall of the first hole, and one end of each second hole close to the first hole is downwards inclined; the bottom of the second hole is communicated with a third hole, and the third hole is communicated with a high-pressure air source through a pipeline and a valve; high-pressure air introduced through the third hole is sprayed out of the second hole, so that friction between the rotating shaft and the first hole is reduced, the rotating speed of the centrifugal cavity is further improved, and the centrifugal effect of the centrifugal machine is further improved; when the centrifugal separation device is used, the sealing cover is opened, raw materials to be separated are placed in the centrifugal cavity, then the sealing cover is covered, the refrigerator is started, the temperature of the centrifugal cavity is reduced, the raw materials are prevented from going bad, meanwhile, the motor 0 is started through the controller, the motor 0 drives the rotating shaft to further drive the centrifugal cavity to rotate, and the raw materials in the centrifugal cavity can be quickly separated in a low-temperature environment; at the moment, the air valve is opened to lead high-pressure air into the third hole, then the high-pressure air is sprayed to the rotating shaft through the second hole, a high-pressure air gap which flows rapidly is formed between the rotating shaft and the first hole, so that the contact and the friction between the rotating shaft and the first hole are reduced, the resistance force applied to the rotating shaft during rotation is reduced, the rotating speed of a centrifugal cavity is further increased, the impeller is blown out through the second hole, the impeller is blown after the high-pressure air is sprayed out through the second hole, the impeller is matched with the soft elasticity of the impeller in an initial state, the blades of the impeller are bent downwards through the air flow, so that the pressure applied to the impeller when the blades of the impeller bend downwards is further reduced, the pressure applied to the middle direction of the rotating shaft during the bending process is applied to the impeller, the friction between the rotating shaft and the first hole is further reduced, and after the temperature rises, the heated blades, can help to accelerate the pivot and rotate, prevent that the pivot from being heated after the inflation, lead to the frictional force increase behind the contact hole, the increase of 0 load of motor, influence the centrifugal effect of raw materials, simultaneously impeller sclerosis back and rotation in-process, can play the effect of vortex to the air current, it strikes the probability of pivot to strengthen the air current, thereby strengthen the cooling effect of pivot, simultaneously impeller rotation in-process impeller flabellum surperficial fender wind piece further plays the vortex effect, simultaneously the slope setting of fender wind piece, make impeller flabellum sclerosis and rotate the back and drive the rotation of fender wind piece, thereby with the air current to the direction of pivot direction, thereby further improve the impact of air current to the axial surface, improve the cooling effect of pivot, prevent the increase of the overheated inflation frictional force of pivot, pivot life obtains showing and improves when improving centrifugal efficiency.

Preferably, the surface of the impeller is provided with uniformly distributed turbulent flow holes; the flow disturbing hole is designed in an inclined mode; during the use, blow the leaf at the air current flow in-process, under the impeller elastic state, can strengthen the effort of air current to the impeller through the vortex hole when the air current blows, thereby strengthen the impeller drag power to the impeller in the time of making the impeller wobbling, thereby further reduce the frictional force between pivot and the hole, improve the pivot rotational speed, thereby improve centrifugal effect, simultaneously the impeller is heated the sclerosis back, can accelerate the power of bringing of air current to the impeller through the vortex hole, thereby further strengthen the auxiliary force of impeller to the axle, can further improve the effect of blowing of air current to the axle through the vortex hole simultaneously, further cool down the axle, strengthen centrifugal effect when improving pivot life.

Preferably, a sealing groove is formed in the inner wall of the first hole above the second hole, and a sealing ring is arranged in the sealing groove; the annular cavity is formed in the sealing ring and is communicated with the third hole through the fourth hole; a fifth hole is formed in the position, close to the rotating shaft, below the sealing ring; a part of normal temperature air is sprayed out through the fifth hole, so that the situation that the rotating shaft is clamped due to the fact that the temperature of the bearing seat and the temperature of the sealing ring are too low is avoided; thereby reducing the rotating speed loss of the rotating shaft and further improving the centrifugal effect of the centrifugal machine; the sealing groove is matched with the sealing ring, so that the leakage of high-pressure air sprayed from the second hole to the upper part of the partition plate can be reduced, the pressure of gas between the rotating shaft and the first hole is increased, the friction force of the rotating shaft on the first hole is further reduced, and the reduction of the refrigeration efficiency of the normal-temperature high-pressure air on the centrifugal cavity is reduced, so that the deterioration of the raw materials in the centrifugal process is further prevented; the annular cavity is communicated with the third hole through the fourth hole; the part below the sealing ring and close to the rotating shaft is provided with a fifth hole, so that part of normal-temperature high-pressure air in the third hole is filled into the annular cavity through the fourth hole and then is sprayed out through the fifth hole, the sealing ring and the bearing seat are prevented from excessively contracting due to low temperature, the rotating shaft is prevented from being clamped, the rotating speed of the rotating shaft is prevented from being influenced, and the centrifugal effect of the centrifugal machine is further improved.

Preferably, a sliding ring is sleeved on the rotating shaft below the partition plate, an annular first cavity is formed in the sliding ring, an air inlet is formed in one side of the sliding ring along the radius direction, and the air inlet is communicated with the refrigerator; a sixth hole arranged along the diameter direction of the cross section of the rotating shaft is formed in the position, corresponding to the first cavity, of the rotating shaft; a seventh hole communicated with the sixth hole is formed in the rotating shaft along the axis direction of the rotating shaft, and the upper end of the seventh hole is communicated with the inside of the body above the partition plate through an eighth hole; the temperature of the rotating shaft is reduced by the cold air flowing through the sixth hole and the seventh hole, the first hole and the sealing ring are prevented from being clamped after the rotating shaft expands due to higher temperature, the rotating speed loss of the rotating shaft is further reduced, and the centrifugal effect of the centrifugal machine is further improved; refrigerating gas sprayed out of the refrigerating machine enters the first cavity through the pipeline and the air inlet hole, then is sprayed out of the eighth hole after passing through the sixth hole and the seventh hole, so that the temperature of the rotating shaft is reduced, the temperature of the rotating shaft is prevented from rising and then expanding, gaps between the first hole and the sealing ring are reduced, and even the first hole and the sealing ring are clamped, so that the rotating shaft is ensured to rotate smoothly, and the separation efficiency of a centrifugal cavity is ensured.

Preferably, the side wall of the centrifugal cavity is provided with an arc-shaped hole formed by casting, and the arc-shaped hole is communicated with the No. seven hole; the top of the arc-shaped hole is communicated with the inside of the body above the partition plate through an air outlet; the cooling speed of the centrifugal cavity is further increased by the cold air flowing through the arc-shaped holes, the centrifugal effect of the centrifugal machine is improved, and raw materials are further prevented from deteriorating; through partly gaseous blowout from arc hole and venthole of refrigeration, further increase the cooling efficiency of centrifugal chamber lateral wall, and then increase the cooling rate of raw materials in the centrifugal chamber, further improve centrifuge's centrifugal effect.

Preferably, the eighth hole is a countersunk hole, and the countersunk part of the eighth hole is positioned at one side close to the periphery of the rotating shaft; a pin is arranged in the eighth hole, and a pin cap of the pin is in sealing fit with the countersunk head part of the eighth hole; a clamping plate is arranged at one end of the pin far away from the pin cap; a group of supports are arranged on the inner wall of the eighth hole, and the supports do not influence the air flow of the eighth hole; a spring is sleeved on the pin between the bracket and the clamping plate; the pins lose the sealing of the eighth hole through centrifugal force, so that the cooling effect of the arc-shaped hole on the centrifugal cavity is reduced, the raw material solidification caused by the over-low temperature of the centrifugal cavity is prevented, and the smooth separation of the raw material is ensured; after the centrifugal cavity reaches predetermined temperature and rotational speed, the normal separating operation that carries on of raw materials in the centrifugal cavity, this moment because the seven holes in the pivot continue to fill into refrigerating gas, make the frictional resistance that the pivot received reduce, and then make centrifugal cavity rotational speed improve, the pin slides along the direction of keeping away from the pivot axle center in eight holes owing to centrifugal force's effect this moment, and then make eight holes open, make most refrigerating air flow through eight holes, thereby reduce the flow of refrigerating air in the arc hole, prevent that centrifugal cavity temperature from crossing low excessively, make the gradual solidification of raw materials, and then guarantee that the raw materials separates smoothly.

Preferably, a group of air inducing lugs are uniformly arranged on the periphery of the centrifugal cavity and used for enabling more cold air to flow through the periphery of the centrifugal cavity, so that the cooling speed of the centrifugal cavity is further increased, and the centrifugal effect of the centrifugal machine is improved; when rotating through centrifugal chamber, the cold air of induced air ear with the baffle top is to the drainage of centrifugal chamber periphery, and then makes more cold air flow through the centrifugal chamber periphery, increases the utilization efficiency of cold air, and then further increases the cooling rate in centrifugal chamber, prevents that the raw materials is rotten when improving centrifuge's centrifugal effect.

The invention has the following beneficial effects:

1. according to the refrigerated centrifuge, high-pressure air is sprayed to the rotating shaft through the second hole, a high-pressure air gap which flows rapidly is formed between the rotating shaft and the first hole, so that contact and friction between the rotating shaft and the first hole are reduced, resistance applied to the rotating shaft during rotation is reduced, the rotating speed of a centrifugal cavity is further increased, the separation speed of the centrifugal cavity is increased, and the centrifugal effect is enhanced.

2. According to the refrigerated centrifuge, when the centrifugal cavity rotates, the air guide lug guides cold air above the partition plate to the periphery of the centrifugal cavity, so that more cold air flows through the periphery of the centrifugal cavity, the utilization efficiency of the cold air is increased, the cooling speed of the centrifugal cavity is further increased, the centrifugal effect of the centrifuge is improved, and raw materials are prevented from deteriorating due to the influence of temperature and time.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is an enlarged view of a portion of FIG. 3 at D;

in the figure: the device comprises a body 1, support legs 11, a sealing cover 12, a handle 13, a heat preservation cavity 14, a partition plate 5, a bearing seat 15, a first hole 16, a rotating shaft 17, a centrifugal cavity 18, a feed inlet 19, a motor 20, a refrigerator 21, a second hole 22, a third hole 23, a sealing groove 24, a sealing ring 25, an annular cavity 26, a fourth hole 27, a fifth hole 28, a sliding ring 3, a first cavity 31, an air inlet hole 32, a sixth hole 33, a seventh hole 34, an eighth hole 35, an arc hole 36, an air outlet hole 37, a pin 4, a pin cap 41, a clamping plate 42, a support 43, a spring 44, an air guide lug 45, an impeller 5, a wind blocking sheet 51 and a turbulent flow hole 52.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a refrigerated centrifuge according to the present invention includes a cylindrical body 1; the bottom of the body 1 is provided with support legs 11, the top of the body 1 is provided with a sealing cover 12, and the center of the top of the sealing cover 12 is provided with a handle 13; the side wall of the body 1 is provided with a heat preservation cavity 14, and heat preservation rock wool is filled in the heat preservation cavity 14 after the heat preservation cavity 14 is vacuumized; a partition plate 5 is arranged in the body 1, a bearing seat 15 is arranged in the center of the partition plate 5, a rotating shaft 17 is rotatably connected in a first hole 16 formed in the middle of the bearing seat 15, the diameter of the rotating shaft 17 is slightly smaller than that of the first hole 16, a centrifugal cavity 18 is arranged at the top of the rotating shaft 17, and a feeding hole 19 is formed in the top of the centrifugal cavity 18; the center of the bottom of the body 1 is fixedly connected with a motor 20, and the motor 20 is connected with a power supply through a controller; an output shaft of the motor 20 penetrates through the body 1 and is fixedly connected with the rotating shaft 17; the impeller 5 is fixedly sleeved in the first hole 16 on the surface of the rotating shaft 17; the inclination direction of the impeller 5 is the same as the rotation direction of the rotating shaft 17, namely, the impeller 5 can blow air downwards in the rotation process of the rotating shaft 17; the fan blades of the impeller 5 are made of a composite material which is soft and elastic at normal temperature and gradually becomes hard when heated; the upper surfaces of the fan blades of the impeller 5 are fixedly connected with wind-shielding sheets 51 which are uniformly arranged; the wind shield 51 is designed obliquely, namely, wind can be blown to the direction of the rotating shaft 17 in the rotating process of the impeller 5; the bottom of the body 1 is provided with a refrigerator 21, and the refrigerator 21 is used for ejecting low-temperature gas to reduce the temperature of the centrifugal cavity 18 above the partition plate 5; a group of second holes 22 are uniformly distributed on the circumference of the inner wall of the first hole 16, and one end, close to the first hole 16, of each second hole 22 is inclined downwards; the bottom of the second hole 22 is communicated with a third hole 23, and the third hole 23 is communicated with a high-pressure air source through a pipeline and a valve; high-pressure air introduced through the third hole 23 is sprayed out of the second hole 22, so that the friction between the rotating shaft 17 and the first hole 16 is reduced, the rotating speed of the centrifugal cavity 18 is increased, and the centrifugal effect of the centrifugal machine is improved; when the centrifugal separation device is used, the sealing cover 12 is opened, raw materials to be separated are placed in the centrifugal cavity 18, then the sealing cover 12 is covered, the refrigerator 21 is started, the temperature of the centrifugal cavity 18 is reduced, the raw materials are prevented from going bad, meanwhile, the motor 20 is started through the controller, the motor 20 drives the rotating shaft 17 to further drive the centrifugal cavity 18 to rotate, and the raw materials in the centrifugal cavity 18 can be quickly separated in a low-temperature environment; at the moment, the air valve is opened to lead high-pressure air into the third hole 23, then the high-pressure air is sprayed to the rotating shaft 17 through the second hole 22, a high-pressure air gap which flows rapidly is formed between the rotating shaft 17 and the first hole 16, so that the contact and friction between the rotating shaft 17 and the first hole 16 are reduced, the resistance borne by the rotating shaft 17 during rotation is reduced, the rotating speed of the centrifugal cavity 18 is further increased, the separation speed of the centrifugal cavity 18 is further increased, meanwhile, the impeller 5 is blown out after the high-pressure air is sprayed from the second hole 22, the impeller 5 is matched with the soft elasticity of the impeller 5 in an initial state, the blades of the impeller 5 are bent downwards by the air flow, so that the downward bending pressure of the impeller 5 by the air flow and the pressure of the rotating shaft 17 to the middle direction of the rotating shaft 17 during the bending process of the blades of the impeller 5 are further reduced, and when the rotating shaft 17 rotates for, the impeller 5 is hardened by the heated blades and becomes wheel-shaped, the rotation of the rotating shaft 17 can be accelerated by blowing the impeller 5 through the airflow, the increase of the friction force caused by the contact with the first hole 16 after the rotating shaft 17 is heated and expanded is prevented, the load of the motor 20 is increased, the centrifugal effect of the raw materials is influenced, meanwhile, the impeller 5 can play a role of turbulent flow on the airflow after being hardened and in the rotating process, the probability of the airflow impacting the rotating shaft 17 is increased, so that the cooling effect of the rotating shaft 17 is enhanced, meanwhile, the wind blocking sheets 51 on the surfaces of the blades of the impeller 5 in the rotating process of the impeller 5 further play a role of turbulent flow, meanwhile, the wind blocking sheets 51 are obliquely arranged, the blades of the impeller 5 are hardened and rotate to drive the wind blocking sheets 51 to rotate, so that the airflow is guided to the direction of the rotating shaft 17, the impact of the airflow on the surface of the rotating shaft 17 is, the service life of the rotating shaft 17 is obviously prolonged while the centrifugal efficiency is improved.

As an embodiment of the present invention, the surface of the impeller 5 is provided with uniformly arranged turbulent flow holes 52; the baffle hole 52 is designed obliquely; during the use, blow leaf 5 at the air current flow in-process, under the impeller 5 elastic state, can strengthen the effort of air current to impeller 5 through disturbing hole 52 during the air current blows, thereby strengthen impeller 5's the power of dragging to pivot 17 when making impeller 5 wobbling, thereby further reduce 16 frictional force between pivot 17 and the hole, improve pivot 17 rotational speed, thereby improve centrifugal effect, impeller 5 is after the thermal hardening simultaneously, can accelerate the power of taking of air current to impeller 5 through disturbing hole 52, thereby further strengthen impeller 5's the auxiliary force to pivot 17, can further improve the effect of blowing of air current to pivot 17 through disturbing hole 52 simultaneously, further cool down pivot 17, strengthen centrifugal effect when improving pivot 17 life.

As an embodiment of the present invention, a sealing groove 24 is formed on an inner wall of the first hole 16 above the second hole 22, and a sealing ring 25 is arranged in the sealing groove 24; an annular cavity 26 is formed in the sealing ring 25, and the annular cavity 26 is communicated with the third hole 23 through a fourth hole 27; a fifth hole 28 is formed in the position, close to the rotating shaft 17, below the sealing ring 25; a part of normal temperature air is sprayed out through the fifth hole 28, so that the rotating shaft 17 is prevented from being clamped by the bearing seat 15 and the sealing ring 25 due to too low temperature; thereby reducing the rotating speed loss of the rotating shaft 17 and further improving the centrifugal effect of the centrifugal machine; the sealing groove 24 and the sealing ring 25 are matched to reduce the leakage of high-pressure air sprayed from the second hole 22 to the upper part of the partition plate 5, so that the pressure of the gas between the rotating shaft 17 and the first hole 16 is increased, the friction force of the rotating shaft 17 on the first hole 16 is further reduced, and the reduction of the refrigeration efficiency of normal-temperature high-pressure air on the centrifugal cavity 18 is reduced, thereby further preventing the raw materials from deteriorating in the centrifugal process; since the annular cavity 26 is communicated with the third hole 23 through the fourth hole 27; a fifth hole 28 is formed in a position, close to the rotating shaft 17, below the sealing ring 25, so that a part of normal-temperature high-pressure air in the third hole 23 is filled into the annular cavity 26 through the fourth hole 27 and then is sprayed out through the fifth hole 28, and the sealing ring 25 and the bearing seat 15 are prevented from excessively contracting due to low temperature, so that the rotating shaft 17 is clamped, the rotating speed of the rotating shaft 17 is influenced, and the centrifugal effect of the centrifugal machine is further improved.

As an embodiment of the invention, a sliding ring 3 is sleeved on the rotating shaft 17 below the partition plate 5, an annular first cavity 31 is formed in the sliding ring 3, an air inlet 32 is formed in one side of the sliding ring 3 along the radius direction, and the air inlet 32 is communicated with the refrigerator 21; a sixth hole 33 arranged along the diameter direction of the cross section of the rotating shaft 17 is formed in the position, corresponding to the first cavity 31, of the rotating shaft 17; a seventh hole 34 communicated with the sixth hole 33 is formed in the rotating shaft 17 along the axial direction of the rotating shaft 17, and the upper end of the seventh hole 34 is communicated with the inside of the body 1 above the partition plate 5 through an eighth hole 35; the temperature of the rotating shaft 17 is reduced by cold air flowing through the sixth hole 33 and the seventh hole 34, the first hole 16 and the sealing ring 25 are prevented from being clamped after the rotating shaft 17 expands due to higher temperature, the rotating speed loss of the rotating shaft 17 is further reduced, and the centrifugal effect of the centrifugal machine is further improved; the refrigerating gas ejected from the refrigerator 21 enters the first cavity 31 through the pipeline and the air inlet 32, and then is ejected from the eighth hole 35 through the sixth hole 33 and the seventh hole 34, so that the temperature of the rotating shaft 17 is reduced, the temperature of the rotating shaft 17 is prevented from rising and then expanding, the gap between the rotating shaft 17 and the first hole 16 and the gap between the rotating shaft 17 and the sealing ring 25 are reduced, even the rotating shaft 17 is clamped with the sealing ring 25, the rotating shaft 17 is ensured to rotate smoothly, and the separation efficiency of the centrifugal cavity 18 is ensured.

As an embodiment of the invention, the side wall of the centrifugal cavity 18 is provided with an arc-shaped hole 36 formed by casting, and the arc-shaped hole 36 is communicated with the No. seven hole 34; the top of the arc-shaped hole 36 is communicated with the inside of the body 1 above the baffle plate 5 through an air outlet hole 37; the cooling speed of the centrifugal cavity 18 is further increased by the cold air flowing through the arc-shaped holes 36, the centrifugal effect of the centrifugal machine is improved, and the raw materials are further prevented from deteriorating; and a part of refrigerating gas is sprayed out from the arc-shaped holes 36 and the air outlet holes 37, so that the cooling efficiency of the side wall of the centrifugal cavity 18 is further increased, the cooling speed of the raw material in the centrifugal cavity 18 is increased, and the centrifugal effect of the centrifugal machine is further improved.

As an embodiment of the present invention, the eight-size hole 35 is a countersunk hole, and the countersunk portion of the eight-size hole 35 is located at a side close to the outer periphery of the rotating shaft 17; a pin 4 is arranged in the eighth hole 35, and a pin cap 41 of the pin 4 is in sealing fit with the countersunk head part of the eighth hole 35; one end of the pin 4, which is far away from the pin cap 41, is provided with a clamping plate 42; a group of brackets 43 are arranged on the inner wall of the eighth hole 35, and the brackets 43 do not influence the air flow of the eighth hole 35; a spring 44 is sleeved on the pin 4 between the bracket 43 and the clamping plate 42; the pin 4 loses the sealing of the eighth hole 35 through centrifugal force, so that the cooling effect of the arc-shaped hole 36 on the centrifugal cavity 18 is reduced, the raw material solidification caused by too low temperature of the centrifugal cavity 18 is prevented, and the raw material is ensured to be separated smoothly; after the centrifugal cavity 18 reaches the preset temperature and the rotating speed, the raw materials in the centrifugal cavity 18 are normally separated, at the moment, the refrigerating gas is continuously filled into the seven holes 34 in the rotating shaft 17, so that the friction resistance of the rotating shaft 17 is reduced, and further the rotating speed of the centrifugal cavity 18 is increased, at the moment, the pin 4 slides in the eight holes 35 along the direction away from the axis of the rotating shaft 17 under the action of the centrifugal force, so that the eight holes 35 are opened, most of the refrigerating air flows out through the eight holes 35, the flow of the refrigerating air in the arc-shaped holes 36 is reduced, the temperature of the centrifugal cavity 18 is prevented from being too low, the raw materials are gradually solidified, and further the raw materials are ensured to be smoothly separated.

As an embodiment of the present invention, a set of air inducing lugs 45 is uniformly arranged on the periphery of the centrifugal cavity 18, and the air inducing lugs 45 are used for making more cold air flow through the periphery of the centrifugal cavity 18, so as to further accelerate the cooling speed of the centrifugal cavity 18 and improve the centrifugal effect of the centrifuge; when rotating through centrifugal chamber 18, induced air ear 45 carries out the drainage with the cold air of baffle 5 top to centrifugal chamber 18 periphery, and then makes more cold air flow through centrifugal chamber 18 periphery, increases the utilization efficiency of cold air, and then further increases centrifugal chamber 18's cooling rate, prevents that the raw materials is rotten when improving centrifuge's centrifugation effect.

When the centrifugal separation device is used, the sealing cover 12 is opened, raw materials to be separated are placed in the centrifugal cavity 18, then the sealing cover 12 is covered, the refrigerator 21 is started, the temperature of the centrifugal cavity 18 is reduced, meanwhile, the motor 20 is started through the controller, the motor 20 drives the rotating shaft 17 to further drive the centrifugal cavity 18 to rotate, and the raw materials in the centrifugal cavity 18 can be quickly separated in a low-temperature environment; at the moment, the air valve is opened, so that high-pressure air is introduced into the third hole 23, then the high-pressure air is sprayed to the rotating shaft 17 through the second hole 22, a high-pressure air gap which flows rapidly is formed between the rotating shaft 17 and the first hole 16, contact and friction between the rotating shaft 17 and the first hole 16 are further reduced, resistance borne by the rotating shaft 17 during rotation is further reduced, the rotating speed of the centrifugal cavity 18 is further increased, and the separation speed of the centrifugal cavity 18 is further increased; the leakage of high-pressure air sprayed from the second hole 22 to the upper part of the partition plate 5 can be reduced by matching the sealing groove 24 with the sealing ring 25; since the annular cavity 26 is communicated with the third hole 23 through the fourth hole 27; a fifth hole 28 is formed in a position, close to the rotating shaft 17, below the sealing ring 25, so that a part of normal-temperature high-pressure air in the third hole 23 is filled into the annular cavity 26 through the fourth hole 27 and then is sprayed out through the fifth hole 28, and the sealing ring 25 and the bearing seat 15 are prevented from excessively contracting due to low temperature, so that the rotating shaft 17 is clamped, and the rotating speed of the rotating shaft 17 is influenced; refrigerating gas ejected by the refrigerator 21 enters the first cavity 31 through a pipeline and an air inlet 32, then is ejected from the eighth hole 35 after passing through the sixth hole 33 and the seventh hole 34, so that the temperature of the rotating shaft 17 is reduced, the rotating shaft 17 is prevented from expanding after being heated, a gap between the rotating shaft 17 and the sealing ring 25 is reduced, and even the rotating shaft is blocked with the sealing ring 25; when the centrifugal cavity 18 reaches the preset temperature and the preset rotating speed, the raw materials in the centrifugal cavity 18 are normally separated, at the moment, the seven holes 34 in the rotating shaft 17 are continuously filled with the refrigerating gas, so that the frictional resistance borne by the rotating shaft 17 is reduced, the rotating speed of the centrifugal cavity 18 is further improved, at the moment, the pins 4 slide in the eight holes 35 along the direction far away from the axis of the rotating shaft 17 under the action of the centrifugal force, the eight holes 35 are further opened, most of the refrigerating air flows out through the eight holes 35, and the flow of the refrigerating air in the arc-shaped holes 36 is reduced; when the centrifugal cavity 18 rotates, the air inducing lugs 45 induce the cold air above the partition plate 5 to flow to the periphery of the centrifugal cavity 18, so that more cold air flows through the periphery of the centrifugal cavity 18.

The front, the back, the left, the right, the upper and the lower are all based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.