TW202110530A - Rotor for mixing comprising a shaft body and a cover - Google Patents

Abstract

The present invention relates to a rotor for mixing, which comprises a shaft body and a cover. The shaft body has a first shaft end and a second shaft end separated in an axial direction, and a middle section formed between the first shaft end and the second shaft end. An outer surface of the middle section includes at least one first wing having a flow space. A side end surface of the first shaft end has at least one axial passage and at least one cooling passage formed by extending to the second shaft end. A first bypass passage is provided between the cooling passage and the flow space of the corresponding first wing. A first branching passage is provided between the axial passage and the flow space of the corresponding first wing. The cover closes the side end surface of the first shaft end, and has a through hole arranged opposite to the axial passage. The through hole has a front section adjacent to the axial passage, and a rear section away from the axial passage. The cover further includes a guide passage connecting the cooling passage and the rear section of the through hole. An extension tube is pivotally disposed at the through hole. An outer surface of the extension tube is configured to pivotally seal the front section of the through hole, a flow space is formed between the outer surface of the extension tube and the rear section. The flow space provides a passage for a cooling medium to flow into the cooling passage, the extension tube provides a passage for the cooling medium to flow out of the axial passage.

Description

Rotor for mixing

The present invention relates to a rotor for a mixer (10,000 horsepower) or a mixer (Lina) for kneading rubber or plastic materials, etc., and particularly relates to its cooling structure.

In order to improve the use performance of rubber products and improve its processability, in the preparation of rubber raw materials, various compounding agents are added to the raw rubber and mixed with a kneader to make a rubber compound; this type of kneader (mixer) ) Includes a pair of rotors. The surfaces of the two rotors have wings of relatively complementary shapes and rotate opposite to each other in a mixing chamber; during the mixing process, the mixing is carried out due to the strong shear stress of the raw rubber and other materials, so the mixing process Under the influence of this stress and friction, heat energy will be generated. The heating phenomenon of this heat energy will cause the temperature of the rubber to become too high. In severe cases, the rubber will scorch and reduce the plasticity of the rubber, or, The surface and inside of the rubber compound will generate cooked rubber particles of different sizes, which will increase the load of the equipment. Therefore, sufficient cooling during the mixing process becomes a necessary element.

」 公開案，以及，中華民國發明第I579038號「混鍊機之攪拌軸冷卻裝置」專利案。 In terms of cooling implementation, in addition to allowing circulating cooling water channels in the wall of the mixing chamber, the rotor is usually hollow and is implemented with water cooling; this prior art rotor embodiment can be seen in US Patent No. 4,834,543 "Optimized four-wing, non-intermeshing rotors for synchronous drive at optimum phase relation in internal batch mixing machines", China CN101774232B "New cooling structure for internal mixer tangent rotors" invention case, Japanese Patent Publication 2005-059528" For mixing

The publication case and the patent case of the Republic of China Invention No. I579038 "Agitating Shaft Cooling Device for Chain Mixer"

These rotors are designed to be made of large castings, and have a cavity extending axially in the center to provide a flow of liquid cooling medium. The cavity is extended inside the wing and has an open end, and a tube is provided. After the body is arranged coaxially into the cavity, the inside of the tube body will form a water inlet channel, and the chamber and the outside of the tube body to the opening will form a water outlet channel, and the cooling medium enters the cavity from the tube body The cooling cycle is implemented indoors and flows out from the open end to reduce the temperature of the rotor body.

」公開案與中華民國發明第I579038號「混鍊機之攪拌軸冷卻裝置」專利案所揭示的另一種設計上，其轉子可由一套管鑄件焊設在一具腔室之軸桿的外表面所構成，該各翼部構成在該套管的外表面且具有一中空空間的設計，該中空空間提供冷卻媒體的流動，而該中空空間與腔室間更包括了二循環通道以提供冷卻媒體由腔室內經循環通道進出該中空空間循環流動。 In terms of the structure of the wing, such as Japanese Patent Publication No. 2005-059528 "For Mixing

According to another design disclosed in the Republic of China Invention No. I579038 "Stirring Shaft Cooling Device for Chain Mixer", the rotor can be welded on the outer surface of a shaft with a cavity by a set of pipe castings. The wing portions are formed on the outer surface of the sleeve and have a hollow space design, the hollow space provides the flow of the cooling medium, and the hollow space and the chamber further include two circulation channels to provide the cooling medium The cavity flows in and out of the hollow space through the circulation channel and circulates.

The cavity of the rotor or the hollow space of the wing itself is an irregular space due to its structural design. Therefore, when the cooling medium flows in it, there will be turbulence that affects its fluidity. Under this inherent environmental characteristics, the circulation effect of the cooling medium itself has the disadvantage of poor efficiency; and the cooling design of the various types of mixing rotors described above cannot be separated from the structure of the tube body arranged concentrically with the chamber The implementation of features, however, these design methods will make the pipe that constitutes the water inlet passage be covered in the higher temperature outlet water passage, so that the cooling medium entering the pipe body will be firstly affected by the ambient temperature outside the pipe body However, increasing its implementation temperature makes the heat exchange cooling effect poor. Even if the input pressure of the cooling medium is increased (increase the flow rate), the effect of increasing the circulation efficiency by pressurization is limited due to the generation of turbulence, and if the wing When there are cracks in the welded joints, the high-pressure implementation of the cooling medium will accelerate the expansion of the cracks and cause leakage. The leaked cooling medium will contaminate the mixed material; the cooling design of the conventional rotor has the disadvantage of poor cooling effect, and it needs to be improved. The rotor design improves the cooling effect of the rotor, and it is expected to have the convenience of assembly and disassembly.

For this reason, the main purpose of the present invention is to provide a kneading rotor which has a better cooling cycle structure and is equipped with convenient implementers in assembly and maintenance operations.

The rotor for mixing of the present invention includes a shaft and a cover. The shaft body has a first shaft end and a second shaft end separated in an axial direction, and an intermediate section formed between the first and second shaft ends. The outer surface of the intermediate section has at least one The first wing portion is a hollow body and has a flow space. The first shaft end of the shaft body includes a side end surface, and the side end surface has at least one axial direction extending toward the second shaft end. A channel and at least one cooling channel, the axial channel is adjacent to the central axis of the shaft, a first branch channel is provided between the cooling channel and the flow space of a first wing corresponding to the flow space There is a first branching channel between the axial channels; the cover has an inner end surface to be joined with the side end surface and an outer end surface spaced apart from the inner end surface in an axial direction, the inner end surface and the outer end surface Between the end faces there is a through hole arranged coaxially with the central axis of the shaft, the through hole having a front section adjacent to the inner end face and a rear section adjacent to the outer end face, the inner end face having an opposite cooling channel and communicating between the back section of the perforation At least one approach; the cover further includes an extension tube pivoted in the perforation, the extension tube having a structure formed in A channel of the pipe diameter and a first end and a second end separated in the axial direction, the first end is sealed and pivotally connected to the front section of the perforation, and the second end extends on the outer end surface, A flow space is formed between the extension pipe and the rear section.

In an embodiment, two first wing portions are arranged around the outer surface of the middle section of the shaft body, and the two cooling channels are respectively opposed to a corresponding first wing portion and extend from the side end to the second shaft end. There is a first branching channel between each cooling channel and the flow space of the opposite first wing part, and there is a first branching channel between the flow space of each first wing part and the axial channel; The inner end surface has two approach passages connected to the rear section of the perforation relative to each cooling passage.

In a preferred embodiment, the side end surface of the shaft body includes two axial passages and two cooling passages, the two axial passages are relatively distributed at the position of the shaft mandrel, and each axial passage forms an end surface on the side end surface. An opening, a first branching channel is provided between each cooling channel and the flow space of a corresponding first wing, and a first branching channel is provided between each axial channel and the flow space of the corresponding first wing ; The aperture before the cap perforation is to accommodate the opening containing the two axial channels.

In an embodiment, the outer surface of the middle section of the shaft body further includes at least one second wing portion spaced apart from the first wing portion in an axial direction, and the second wing portion is a hollow body and has a In the flow space, there is a second branching passage between the cooling passage and the second wing flow space, and a second branching passage is provided between the axial passage and the second wing flow space.

Preferably, the approach path of the cover has a transverse section extending transversely from the inner end surface and a longitudinal section extending longitudinally from the transverse section to the rear section.

In one embodiment, the transverse section is formed by a ring groove formed on the inner end surface of the cover.

Preferably, the section before the perforation has a shaft sealing ring, and the shaft sealing ring seals the outer surface of the extension tube. .

Preferably, the perforation is a stepped hole, the front section is a small diameter section and the rear section is a large diameter section.

In one embodiment, the outer surface of the first end of the extension tube has a ring rib extending in the radial direction, and the ring rib is movably sealed to the inner surface of the axial passage.

In another preferred embodiment, the shaft body further includes a tube body, the first wing portion is formed on the outer surface of the tube body, and the axial direction of the tube body is capable of being sleeved and matched with the middle section of the shaft body. The socket hole, the inner surface of the socket hole has at least one channel screwed into the axial length of the socket hole, the channel passes through the flow space of the first wing part, and the first shunt The channel is connected between the channel and the cooling channel, and the first branch channel is connected between the channel and the axial channel.

Hereinafter, the kneading rotor according to the embodiment of the present invention will be described with reference to the drawings.

10‧‧‧Rotor for mixing

20‧‧‧Axis

21‧‧‧Cooling channel

212‧‧‧The first shunt channel

214‧‧‧The first branch channel

216‧‧‧Second shunt channel

218‧‧‧Second bifurcation channel

22‧‧‧First shaft end

222‧‧‧Side end surface

24‧‧‧Second shaft end

26‧‧‧Middle section

28‧‧‧Axial channel

282‧‧‧Open

30‧‧‧Rotary joint

32‧‧‧Port

34‧‧‧First Path

36‧‧‧Second Path

38‧‧‧end cap

40‧‧‧Cover

41‧‧‧Ring groove

42‧‧‧Inner end face

423‧‧‧Mobile Space

44‧‧‧Outer face

46‧‧‧Perforation

462‧‧‧Front section

464‧‧‧Back

466‧‧‧External interface

48‧‧‧ Approach

482‧‧‧horizontal section

484‧‧‧Longitudinal section

62‧‧‧First Wing

622‧‧‧First end

624‧‧‧Second end

626‧‧‧Mobile Space

64‧‧‧Second Wing

642‧‧‧First end

644‧‧‧Second end

646‧‧‧Mobile Space

66‧‧‧Tube body

662‧‧‧Socket hole

664‧‧‧Slot

80‧‧‧Extension tube

81‧‧‧Ring rib

812‧‧‧Shaft seal

82‧‧‧Channel

84‧‧‧First end

86‧‧‧Second end

88‧‧‧Shaft seal ring

Fig. 1 is an exploded schematic view of the components of the rotor for mixing of the present invention.

Figure 2 shows an exploded schematic diagram of the shaft structure of the rotor for mixing of the present invention.

Fig. 3 shows a perspective cross-sectional view of the cover in the rotor for mixing of the present invention.

Fig. 4 is a combined cross-sectional view of the rotor for kneading of the present invention.

Fig. 5 shows an enlarged view of the part of Fig. 4.

Fig. 6 is an exploded view of another embodiment in which the wings of the shaft body of the present invention constitute a tube body.

Fig. 7 shows a perspective cross-sectional view of the shaft body of Fig. 4 with a part of the tube body cut away.

Fig. 8 is a schematic cross-sectional view of another embodiment of the rotor for mixing of the present invention.

Fig. 9 shows an enlarged view of the part of Fig. 6;

Fig. 10 shows a perspective cross-sectional view of another embodiment of the cover in the rotor for mixing of the present invention.

The specific embodiments are only examples but not intended to limit, and with reference to the accompanying drawings, the preferred content of the present invention is described as follows: As shown in Figures 1 to 5, the rotor 10 for mixing of the present invention can be Driven by a driving source such as a motor not shown in the figure, the two mixing rotors 10 can be horizontally arranged in a mixing chamber and rotated in opposite directions to perform mixing operations.

The rotor 10 for mixing of the present invention is composed of a shaft body 20 and a cover 40. The shaft body 20 has a first shaft end 22 and a second shaft end 24 spaced apart in an axial direction. An intermediate section 26 between the first and second shaft ends 22 and 24, the first shaft end 22 and the second shaft end 24 have concentric outer shaft surfaces, and the first shaft end 22 and the second shaft end 24. The shaft body 20 is set in a mixing chamber with bearings and installed in a mixing chamber so that the shaft body 20 can be rotatably implemented; the outer surface of the middle section 26 of the shaft body 20 has at least one first wing portion 62 or includes at least one second wing portion 64 , The first wing portion 62 and the second wing portion 64 are spaced apart from each other in an axial direction and extend and extend on the outer surface of the middle section 26. The first wing portion 62 is opposite to each other according to the screw direction. It is divided into a first end 622 and a second end 624. The second wing portion 64 is relatively divided into a first end 642 and a second end 644 according to its screwing direction; the first wing portion 62 can be divided into a first end 642 and a second end 644. The equiangular ring is arranged on the outer surface of the middle section 26. In the figure, the two first wing portions 62 are separated according to their axial directions and the equiangular ring is arranged on the outer surface of the middle section 26, and is connected to the first wing. The second wing portions 64 arranged in a matching number of the portions 62 are also separated according to their axial directions and are equiangularly ring-shaped on the outer surface of the middle section 26.

The first wing portion 62 and the second wing portion 64 are a hollow body so that the first wing portion 62 and the second wing portion 64 each have a flow space 626, 646, basically, the first wing portion 62 and The second wing portion 64 is welded to the outer surface of the middle section 26 of the shaft body 20 after finishing the welding.

Regarding the arrangement design of the first wing portion 62 or the second wing portion 64 of the mixing rotor 10, there are different arrangement numbers, arrangement positions, or different screw advance angles due to factors such as mixing efficiency. Design, the position and quantity of the first wing portion 62 and the second wing portion 64 illustrated in this specification are only a preferred embodiment for the convenience of describing the present invention, and are not intended to limit the present invention to the first wing portion 62 or the first wing portion 62 or the second wing portion. The number and location of the two wings 64 may be changed and implemented. The scope of the present invention is defined by the scope of the attached patent application.

In a preferred embodiment, the first shaft end 22 of the shaft body 20 has a side end surface 222, and the side end surface 222 has at least one axial passage 28 extending toward the second shaft end 24, and the axial passage 28 Adjacent to the central axis of the shaft body 20, the axial passage 28 forms an opening 282 on the side end surface 222. In the embodiment of FIG. 1, the axial passage 28 is arranged coaxially with the central axis of the shaft body 20; The first shaft end 22 of the shaft body 20 further includes at least one cooling passage 21 extending from the side end surface 222 to the second shaft end 24, and the cooling passage 21 is in the radial direction of the shaft body 20 and the axial passage 28 They are separated from each other and extend horizontally and horizontally; in the figure, two cooling channels 21 can be provided in accordance with the number of the first or second wing portions 62, 64, and each cooling channel 21 further includes a cooling channel 21 formed in a longitudinal direction. A first shunt passage 212 between the flow space 626 of the second end 624 of the opposite first wing portion 62, and, in a longitudinal direction, formed between the axial passage 28 and the first end 622 of the opposite first wing portion 62 A first branching channel 214 between the flow spaces 626.

Regarding the second wing portion 64, the cooling passages 21 further include a second partition formed longitudinally between the cooling passage 21 and the flow space 646 of the second end 644 of the second wing portion 64 opposite to each other. The flow channel 216 and a second branch channel 218 formed in a longitudinal direction between the axial channel 28 and the flow space 646 of the first end 642 of the opposite second wing 64.

The cooling channel 21 can provide an inlet end for the flow of the cooling medium, and the axial channel 28 can constitute a first flow outlet end for the flow of the cooling medium; the cooling medium enters the interior of the mixing rotor 10 from the cooling channel 21, and the first branching channel 212. The second branch passage 216 flows into the flow spaces 626, 646 of a first wing portion 62 and a second wing portion 64 opposed to each other, and flows to the shaft from the first branch passage 214 and the second branch passage 218 opposed to each other. The output is output to the channel 28 from the opening 282 of the axial channel 28, so that the first and second wings 62, 64 of the rotor 10 for mixing are cyclically cooled; in the present invention, the cooling channel 21 and the shaft With the implementation of the separate technical feature of the channel 28, the cooling medium can directly enter the flow spaces 626 and 646 to be implemented for heat exchange, so that the present invention can have a better cooling effect.

As shown in FIGS. 3 and 5, the cover 40 will be attached to the side end surface 222 of the first shaft end 22 of the shaft body 20. The cover 40 has an inner end surface 42 joined to the side end surface 222 and The inner end surface 42 is an outer end surface 44 spaced apart in an axial direction. A stepped through hole 46 is formed between the inner end surface 42 and the outer end surface 44 and is arranged opposite to the axial passage 28. Basically, The perforation 46 is arranged coaxially with respect to the central axis of the shaft body 20; the aperture of the stepped perforation 46 forms a small diameter front section 462 at the end adjacent to the inner end surface 42, and the end adjacent to the outer end surface 44 forms a large diameter rear section Section 464. The rear section 464 forms an outer interface 466 on the outer end surface 44. As shown in FIG. 4, the perforated outer interface 466 is arranged coaxially with the central axis of the shaft body 20; The inner end surface 42 of the shaft 40 has at least one approach path 48 communicating with the rear section 464 of the perforation 46 at a position relative to the cooling channel 21 of the side end surface 222 of the shaft body 20. As shown in the figure, the approach path 48 includes A transverse section 482 extending transversely from the inner end surface 42 and a longitudinal section extending longitudinally from the transverse section 482 to the rear section 464 Paragraph 484.

The cover 40 further includes an extension tube 80 movably pivotable relative to the perforation 46. The extension tube 80 has a channel 82 formed in the diameter of the extension tube and a first section movably pivoted and sealingly joined to the front section 462 of the perforation 46. One end 84 and a second end 86 that extends away from the first end 84 and is formed outside the outer interface 466 is arranged coaxially with the outer interface 466, and the outer surface of the extension tube 80 and the rear section A flow space 423 will be formed between the 464; in a preferred embodiment disclosed in the drawing, a shaft seal ring 88 is sleeved between the first end 84 of the extension tube 80 and the hole wall of the front section 462, the shaft seal The ring 88 seals the axial gap between the outer surface of the extension tube 80 and the hole wall of the front section 462, and makes the extension tube 80 pivotally rotatably relative to the perforation 46.

In a preferred embodiment disclosed in the drawings, the first end 84 of the extension tube 80 extends into the axial passage 28, and the outer surface of the first end 84 has a radially extending A ring rib 81 has a shaft seal 812 on the outer surface of the ring rib 81 to seal the passage between the inner wall of the axial passage 28 and the outside of the extension tube 80.

Regarding the implementation of the cover 40, the outer interface 466 of the cover 40 and the second end 86 of the extension tube 80 provide a dual-circuit rotary joint 30 (rotary joint) to connect, and the dual-circuit rotary joint 30 is a conventional one. Known components, the rotary joint is a rotating mechanical seal device, which is a transitional part that feeds the medium into the rotating drum from a fixed supply pipeline, and the dual-circuit rotary joint 30 has a port 32 with a first passage 34 and The second passage 36 is implemented in a double loop. In the figure, the rotary joint 30 can be locked with one end cover 38 and closed at the interface 466 outside the perforation 46 of the cover 40, and the second end 86 of the extension tube 80 is connected to the rotary joint 30. An internal passage of the joint 30, as shown in the figure, the outer port 466 of the cover 40 (the flow space 423 of the rear section 464) communicates with the first passage 34 of the rotary joint 30 and the passage 82 of the extension tube 80 The second passage 36 of the rotary joint 30 is connected.

In the structure of the rotor 10 for mixing of the present invention, the inner end surface 42 of the cover 40 engages and shields the side end surface 222 of the first shaft end 22 of the shaft body 20, and the approach passage 48 of the cover 40 is located opposite to each other. The cooling passage 21, the cooling passage 21 and the approach passage 48 constitute a communicating path; the front section 462 of the perforation 46 of the cover 40 is relatively connected to the axial passage 28, and oppositely, the passage 82 of the extension tube 80 is connected to the The axial passage 28 constitutes a communicating passage; in addition, the extension tube 80 can have the ring rib 81, and the first end 84 of the extension tube 80 can be movably engaged in the axial passage 28, and the ring rib 81 It also assists the communication state between the passage 82 of the extension tube 80 and the axial passage 28.

Based on the installation and implementation of the cover 40 in the present invention, it can achieve the implementation of the input and output of the two horizontally arranged cooling channels 21 and the axial channel 28 in the same axial direction; although the extension tube 80 is partially The portion tube body is arranged concentrically in the rear section 464 of the cover 40. It seems that the cooling medium entering the flow space 423 of the rear section 464 will have a heat exchange effect with the return cooling medium in the passage 82 of the extension tube 80. However, by sealing Under the implementation of the structure of the cover 40, the implementation length of the rear section 464 can be effectively reduced. The reduced contact area can reduce the heat exchange effect and produce a greater change in the implementation temperature value of the entering cooling medium, thereby affecting The cooling cycle effect on the rotor 10 for kneading.

In terms of implementation, the cooling medium enters the flow space 423 between the rear section 464 of the cover 40 and the extension tube 80 through the first passage 34 of the rotary joint 30 through its port 32, and the cooling medium entering the flow space 423 then passes through the approach path 48 leads to the cooling passage 21. As described above, the cooling medium enters the mixing rotor 10 from the cooling passage 21, and flows into the first wing portion 62 and the second wing through the first branch passage 212 and the second branch passage 216 In the flow spaces 626 and 646 of the section 64, the first branch passage 214 and the second branch passage 218 flow into the axial passage 28, and the passage 82 of the extension pipe 80 communicating with the axial passage 28 will guide the circulation The subsequent cooling medium is fed from the second passage 36 of the rotary joint 30 Out, a cooling cycle is formed.

Although the pipeline piping technology of the fluid pipeline can be completed in the same axial direction for coaxial output, however, with regard to the arrangement of the cover 40 of the present invention, it can not only constitute a bearing fixing when the rotor 10 for mixing is installed. Outside the seat, it has the convenience of assembly and can simplify the complicated procedures of piping operations, and can also provide convenient disassembly and implementation for future maintenance operations.

Regarding the configuration of the first wing portion 62 or the second wing portion 64, the present invention can also be implemented as disclosed in the Republic of China Invention No. I579038 "Agitating Shaft Cooling Device for Chain Mixer" in order to make the first The wing portion 62 or the second wing portion 64 is formed by casting on a tubular body, and then the tubular body and the shaft body 20 are welded and fixed to form a rotor for mixing. As shown in Figures 6 and 7, the first wing portion 62 and the second wing portion 64 are integrally cast with a pipe body 66. In order to show that the first wing portion 62 and the second wing portion 64 may have The different arrangements are shown in the figure in a different arrangement from that of Fig. 1; the shaft body 20 may further include a tube body 66, two first wings 62 are ringed around one end of the tube body 66, and two second The wing portion 64 is arranged at the opposite end of the tube body 66 in the axial direction. As described above, the tube body 66 may not have the arrangement of the second wing portion 64; the tube body 66 can be connected to the shaft body 20. The middle section 26 is sleeved with a matching sleeve hole 662. The sleeve hole 662 is welded and fixed after being sleeved on the shaft body 20. Each first wing portion 62 and each second wing portion 64 are formed in the sleeve There is a flow space 626, 646 between the holes 662, and the inner surface of the socket hole 662 has a channel 664 connected between the flow spaces 626, 646. In a preferred embodiment of the figure, the groove The channel 664 is screwed in between the axial length of the socket hole 662. With the arrangement of the channel 664 in the socket hole 662, the cooling medium can be a distance from the tube body 66 in the axial direction. In addition to the axial passage 28, a cooling passage 21 and the axial passage 28 can extend horizontally, and a first branch passage 212 is provided in the pipe. One end of the body 66 is connected to the cooling channel 21 and a first Between the flow space 626 of the wing portion 62 or the channel 664, and a first branch passage 214 is connected to the axial passage 28 and the flow space 646 of the second wing portion 64 at the other axial end of the tube 66 (When implemented without the second wing 64, it is the flow space 626 of the first wing 62 at an axial distance) or between the channels 664; the first branching channel 212 and the first branching channel 214 are between When the tube body 66 is separated by an axial distance, the cooling medium enters the flow space 626 or channel 664 between the tube body 66 and the shaft body 20 through the first branch passage 212 from the cooling channel 21, and the cooling medium After the spiral channel 664 flows through the flow spaces 626 and 646, the first branching channel 214 leads to the axial channel 28 to flow out to complete a cooling cycle.

Regarding the above-mentioned technical features of the present invention, in another preferred embodiment, the two axial channels 28 are extended and configured on the side end surface 222 of the shaft body 20. Please refer to Figures 8 and 9, in order to show the cooling medium The flow path, Figures 8 and 9 only show the implementation of the two first wing portions 62, and the screw-in implementation of the first wing portion 62 is expanded in a straight line, and the axial passage 28, the cooling passage 21 and the first branch passage 212 and the first branching channel 214 are also represented on a cross-sectional end surface; in the drawings of FIG. 8 and FIG. 9, the side end surface 222 of the shaft body 20 has two axial passages 28 extending to the second shaft end 24, the The two axial passages 28 are arranged adjacent to each other according to the axis of the shaft body 20. Each of the two axial passages 28 is formed with an opening 282 on the side end surface 222; the first shaft end 22 of the shaft body 20 further includes Two cooling passages 21 extending from the side end surface 222 to the second shaft end 24, each cooling passage 21 corresponds to an axial passage 28 and is arranged away from the radial space of the shaft body 20; an axial passage 28 and a phase A cooling medium circulation path is formed between the corresponding cooling channel 21 and the flow space 626 of a corresponding first wing 62. As shown in the figure, there is a cooling channel 21 and the flow space 626 of a corresponding first wing 62 between A first branch passage 212, and a first branch passage 214 is provided between the flow space 626 and a corresponding axial passage 28; and the structural feature of the cover 40 opposite to the shaft body 20 changes, the perforation Before 46 The aperture of the section 462 accommodates the opening 282 including the two axial passages 28, and the first end 8 of the extension tube 80 is extended and sealed to be pivoted in the aperture of the section 462 before the perforation 46.

In practice, the cooling medium enters the flow space 423 between the rear section 464 of the cover 40 and the extension tube 80 through the first passage 34 of the rotary joint 30 through the port 32, and the cooling medium entering the flow space 423 then passes through the approach passage 48 leads to each cooling channel 21, the cooling medium enters the interior of the mixing rotor 10 from each cooling channel 21, and each cooling channel 21 flows into the flow space 626 of the corresponding first wing 62 through the first branch channel 212 communicating with it The first branching passage 214 between the flow space 626 and the corresponding axial passage 28 will allow the cooling medium to flow to the axial passage 28, and the passage 82 of the extension pipe 80 communicating with the axial passage 28 will The cooling medium after the guiding cycle is output from the second passage 36 of the rotary joint 30, so that the flow spaces 626 of the two first wings 62 each form a cooling cycle for implementation.

The above description of the circulating flow direction of the cooling medium is only for explaining the process of the heat exchange cooling cycle, and it is not the only way to restrict the flow direction of the cooling medium. The circulation path of the cooling medium can also flow in from the axial channel 28 and flow out from the cooling channel 21.

Based on the above-mentioned implementation advantages of the cover 40, in a feasible embodiment, the transverse section 482 in the approach path 48 of the cover 40 may be formed by a ring groove 41 formed on the inner end surface 42, and the longitudinal section 482 is formed between the annular groove 41 and the rear section 464, as shown in FIG. 10.

The above are detailed descriptions and drawings of the preferred embodiments of the present invention, and are not intended to limit the present invention. All the scope of the present invention should be subject to the following patent scope, and the spirit of the patent scope and similarly modified embodiments Both and similar structures should be included in the present invention.

10‧‧‧Rotor for mixing

20‧‧‧Axis

21‧‧‧Cooling channel

212‧‧‧The first shunt channel

214‧‧‧The first branch channel

216‧‧‧Second shunt channel

218‧‧‧Second bifurcation channel

22‧‧‧First shaft end

24‧‧‧Second shaft end

26‧‧‧Middle section

28‧‧‧Axial channel

30‧‧‧Rotary joint

32‧‧‧Port

34‧‧‧First Path

36‧‧‧Second Path

40‧‧‧Cover

423‧‧‧Mobile Space

46‧‧‧Perforation

462‧‧‧Front section

464‧‧‧Back

48‧‧‧ Approach

62‧‧‧First Wing

622‧‧‧First end

624‧‧‧Second end

626‧‧‧Mobile Space

642‧‧‧First end

644‧‧‧Second end

646‧‧‧Mobile Space

80‧‧‧Extension tube

81‧‧‧Ring rib

82‧‧‧Channel

84‧‧‧First end

86‧‧‧Second end

Claims (10)

A rotor (10) for mixing, comprising: a shaft body (20) having a first shaft end (22) and a second shaft end (24) spaced apart in an axial direction And a middle section (26) formed between the first and second shaft ends (22), (24), the outer surface of the middle section (26) has at least one first wing (62), the first The wing portion (62) is a hollow body and has a flow space (626). The first shaft end (22) of the shaft body (20) includes a side end surface (222), and the side end surface (222) has a side surface (222) facing the At least one axial passage (28) and at least one cooling passage (21) formed by the extension of the two shaft ends (24), the axial passage (28) is adjacent to the central axis of the shaft body (20), and the cooling passage (21) There is a first shunt passage (212) between the flow space (626) of the corresponding first wing (62), and there is a first branch passage (212) between the flow space (626) and the corresponding axial passage (28). The first branching channel (214); a cover (40), the cover (40) has an inner end surface (42) to be joined with the side end surface (222) and an axial direction with the inner end surface (42) A separate outer end surface (44), between the inner end surface (42) and the outer end surface (44), there is a perforation (46) arranged coaxially with the central axis of the shaft (20), the perforation (46) ) Has a front section (462) adjacent to the inner end surface (42) and a rear section (464) adjacent to the outer end surface (44), and the inner end surface (42) has an opposite cooling channel (21) and communicates with the through hole ( 46) At least one approach path (48) between the rear section (464); the cover (40) further includes an extension tube (80) pivoted on the perforation (46), and the extension tube (80) is configured in A channel (82) of the pipe diameter and a first end (84) and a second end (86) spaced apart in the axial direction, the first end (84) is sealed and pivotally connected to the through hole (46) ) The front section (462) and the second end (86) extend on the outer end surface (44), and a flow space (423) is formed between the extension tube (80) and the rear section (464). The rotor (10) for mixing as described in item 1 of the scope of patent application, in which two first wings (62) are arranged around Distributed on the outer surface of the middle section (26) of the shaft body (20), the two cooling channels (21) are each opposed to a corresponding first wing portion (62) and extend from the side end surface (222) to the second shaft end ( 24) Extending distribution, each cooling channel (21) and the flow space (626) of the first wing portion (62) opposite to each have a first branching channel (212), and each first wing portion (62) has a A first branching channel (214) is provided between the flow space (626) and the axial channel (28); the inner end surface (42) of the cover (40) has a respective cooling channel (21) connected to the Perforate the second approach (48) of the rear section (464) of (46). The rotor (10) for mixing as described in item 2 of the scope of patent application, wherein the side end surface (222) of the shaft body (20) includes two axial channels (28) and two cooling channels (21). The axial channels (28) are relatively distributed at the position of the spindle (20), and each axial channel (28) forms an opening (282) on the side end surface (222), and each cooling channel (21) corresponds to its There is a first shunt passage (212) between the flow spaces (626) of a first wing (62), and each axial passage (28) corresponds to the flow space (626) of the first wing (62). ) Is provided with a first branching channel (214); the aperture (462) of the front section (462) of the perforation (46) of the cover (40) is to accommodate the opening (282) including the two axial channels (28). The mixing rotor (10) described in item 1 or item 2 of the scope of the patent application, wherein the outer surface of the middle section (26) of the shaft body (20) further includes the same as the first wing (62) At least one second wing (64) spaced apart in the axial direction. The second wing (64) is a hollow body and has a flow space (646), a cooling channel (21) and a corresponding first wing (64). There is a second shunt passage (216) between the flow spaces (646) of the two wings (64), and the flow space (646) of the second wing (64) is between the corresponding axial passage (28). There is a second branching channel (218) in between. The mixing rotor (10) described in item 1 or item 2 of the scope of patent application, wherein the approach path (48) of the cover (40) has a transverse section ( 482) and a longitudinal section (482) extending longitudinally from the transverse section (482) to the rear section (464). The mixing rotor (10) described in item 5 of the scope of patent application, wherein the transverse section (482) is formed by a ring groove (41) formed on the inner end surface (42). The mixing rotor (10) described in the first item of the scope of patent application, wherein the front section (462) of the perforation (46) has a shaft sealing ring (88), and the shaft sealing ring (88) seals the extension tube (80). ) Outer surface. For example, the mixing rotor (10) described in item 1 or item 7 of the scope of patent application, wherein the perforation (46) is a stepped hole, the front section (462) is a small diameter section, and the rear section (464) It is a large diameter section. The mixing rotor (10) described in the first item of the scope of patent application, wherein the outer surface of the first end (84) of the extension tube (80) has a ring rib (81) extending in its radial direction, the The ring rib (81) is movably sealed on the inner surface of the axial passage (28). The rotor (10) for mixing as described in item 1 of the scope of patent application, wherein the shaft body (20) further includes a tube body (66), and the first wing (62) is formed on the tube body (66). ) Outer surface, the axial direction of the tube body (66) has a socket hole (662) that can be socketed and matched with the middle section (26) of the shaft body (20), and the inner surface of the socket hole (662) There is at least one channel (664) screwed into the axial length of the socket hole (662), the channel (664) passes through the flow space (626) of the first wing (62), and the first wing (62) A branch channel (212) is connected between the channel (664) and the cooling channel (21), and the first branch channel (214) is connected between the channel (664) and the axial channel (28) .

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