TWI696491B - Rotor for mixing - Google Patents

Abstract

The invention relates to a rotor for kneading, 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 an intermediate section formed between the first and second shaft ends. The outer surface of the intermediate section includes At least one first wing portion of the flow space, the side end surface of the first shaft end has at least one axial channel and at least one cooling channel extending toward the second shaft end, the cooling channel corresponding to a first wing There is a first branching channel between the flow spaces of the part, and there is a first branching channel between the axial channel and the flow space of the corresponding first wing; the cover is closed to the side of the first shaft end The end face has a perforation opposite to the axial passage, the perforation has a front section adjacent to the axial passage and a rear section away from the axial passage, and the cover further includes a cooling passage and a rear section of the perforation A guide channel between; an extension tube will be pivoted to the perforation, the outer surface of the extension tube will be pivotally sealed to the front section of the perforation, and a flow space is formed between the outer surface of the extension tube and the rear section, the flow space The passage of cooling medium into the cooling channel is provided, and the extension tube provides the passage of cooling medium out of the axial channel.

Description

Rotor for mixing

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

In order to improve the performance of rubber products and improve their processability, various raw materials are added to the raw rubber and mixed with a kneading machine to make a kneading rubber; this kneading machine (mixer ) Includes a pair of rotors, and the surfaces of the two rotors have relatively complementary shapes and rotate opposite to each other in a mixing chamber; during the kneading process, due to the strong shear stress applied to the raw material such as raw rubber, the kneading process Under the influence of this stress and frictional force, heat energy will be generated. The heat generated by these heat energy will cause the temperature of the rubber to become too high. In severe cases, the rubber compound will scorch and the plasticity of the rubber compound will decrease, or, On the surface and inside of the rubber compound, cooked rubber particles of different sizes are generated, and the load on the equipment is increased. Therefore, sufficient cooling during the mixing process becomes an essential requirement.

」 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。 As for the cooling embodiment, in addition to allowing circulating cooling water channels in the wall of the mixing chamber, the rotor is usually hollow and is water-cooled; this prior art rotor example can be found 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'' case, Chinese mainland CN101774232B ``Innovative cooling structure for tangential rotor of internal mixer'', Japanese Patent Application Publication 2005-059528 For mixing

"The public case, and the patent case of Republic of China Invention No. I579038 "Agitator Shaft Cooling Device of Chain Mixer".

The design of these rotors is made of large castings and has a cavity extending axially at the center to provide the flow of liquid cooling medium. The cavity has an extension formed inside the wing and has an open end, while providing a tube After the arrangement of the body coaxial is extended into the chamber, the inside of the pipe body will form an inlet passage, and the chamber and the outside of the pipe body to the opening will form an outlet passage, the cooling medium enters the chamber from the pipe body The cooling flow is implemented in the room 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 Laid-Open No. 2005-059528

”And the Republic of China Invention No. I579038 “Agitator Shaft Cooling Device for the Mixer” patent case disclosed another design, the rotor can be welded on the outer surface of the shaft of a chamber by a set of tube castings Constituted, the wings are formed on the outer surface of the sleeve and have a hollow space design, the hollow space provides the flow of cooling medium, and the hollow space and the chamber further include two circulation channels to provide cooling medium The hollow space circulates from the chamber through the circulation channel.

The hollow space of the rotor chamber or 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, so in Under the innate environmental characteristics, the circulation effect of the cooling medium itself has the disadvantage of inefficiency; and the cooling design of the various types of mixing rotors described above can not be separated from the structure of the tube body concentrically arranged with the chamber The implementation of the features, however, these design methods will make the pipe body forming the inlet passage covered in the outlet passage with higher temperature, so that the cooling medium entering the pipe body will first be affected by the ambient temperature outside the pipe body The increase of its implementation temperature makes the heat exchange cooling effect poor, even though the input pressure of the cooling medium is increased (increased flow rate), but the above-mentioned turbulence makes the effect of increasing the circulation efficiency by pressurization limited, and if the wing part When there is a crack in the welding place, the high-pressure implementation of the cooling medium will accelerate the expansion of the crack and cause leakage. The leaked cooling medium will contaminate the mixed material; the conventional rotor cooling design has the disadvantage of poor cooling effect, and needs to be improved. The rotor design improves the cooling effect of the rotor, and it is expected to have convenience in assembly and disassembly.

Therefore, the main object of the present invention is to provide a rotor for kneading which has a better cooling cycle structure and is provided with a convenient implementer for assembly and maintenance work.

The rotor for kneading of the present invention includes a shaft body and a cover. The shaft body has a first shaft end and a second shaft end spaced apart 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 with a flow space, the first shaft end of the shaft body includes a side end surface, the side end surface has at least one axial direction extending toward the second shaft end A cooling channel and at least one cooling channel, the axial channel is adjacent to the central axis of the shaft body, and the cooling channel and a flow space of a corresponding first wing portion have a first branch channel, the flow space corresponds to the There is a first branching channel between the axial channels; the cover has an inner end surface to be joined to the side end surface and an outer end surface spaced apart from the inner end surface in the axial direction, the inner end surface and the outer end surface Between the end faces, there is a perforation coaxially arranged with the central axis of the shaft body, the perforation has a front section adjacent to the inner end face and a rear section adjacent to the outer end face, the inner end face has a relative cooling channel and communicates with the rear section of the perforation At least one guide channel; the cover further includes an extension tube pivotally disposed at the perforation, the extension tube having A channel with a diameter and a first end and a second end spaced apart in the axial direction thereof, the first end is sealed and pivotally connected to the front section of the perforation, and the second end extends to the outer end surface, A flow space is formed between the extension pipe and the rear section.

In an embodiment, the two first wing portions are distributed around the outer surface of the middle section of the shaft body, and the two cooling channels each extend from the side end to the second shaft end relative to a corresponding first wing portion. Each cooling channel has a first branch channel between the flow space of the opposite first wing, and a first branch channel between the flow space of each first wing and the axial channel; The inner end surface has two guide channels communicating with the rear section of the perforation relative to each cooling channel.

In a preferred embodiment, the side end surface of the shaft body includes two axial channels and two cooling channels, the two axial channels are relatively distributed at the position of the mandrel of the shaft body, and each axial channel constitutes a An opening, each cooling channel and a flow space of a corresponding first wing have a first branch channel, and each axial channel and a flow space of a corresponding first wing have a first branch channel ; The aperture before the cover is perforated to accommodate the opening including 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. The second wing portion is a hollow body having a In the flow space, there is a second branch channel between the cooling channel and the second wing flow space, and there is a second branch channel between the axial channel and the second wing flow space.

Preferably, the approach of the cover has a transverse section extending laterally 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 front section of the perforation has a shaft sealing ring which 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, the ring rib is movably sealed to the inner surface of the axial channel.

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 has a sleeve fit with the middle section of the shaft body A set of connecting holes, the inner surface of the set of connecting holes has at least one channel screwed into the axial length of the set of connecting holes, the channel passes through the flow space of the first wing, the first split The channel communicates between the channel and the cooling channel, and the first branching channel communicates between the channel and the axial channel.

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

10‧‧‧Rotor for mixing

20‧‧‧Shaft

21‧‧‧cooling channel

212‧‧‧First shunt channel

214‧‧‧ First branch channel

216‧‧‧Second shunt channel

218‧‧‧The second branch channel

22‧‧‧First shaft end

222‧‧‧Side end face

24‧‧‧The second shaft end

26‧‧‧ middle section

28‧‧‧Axial channel

282‧‧‧ opening

30‧‧‧Swivel joint

32‧‧‧port

34‧‧‧ First Path

36‧‧‧Second access

38‧‧‧End cap

40‧‧‧Cover

41‧‧‧ring groove

42‧‧‧Inner end

423‧‧‧ mobile space

44‧‧‧Exterior

46‧‧‧Perforation

462‧‧‧First paragraph

464 ‧‧‧

466‧‧‧External interface

48‧‧‧ Approach

482‧‧‧ horizontal section

484‧‧‧Vertical section

62‧‧‧The first wing

622‧‧‧The first end

624‧‧‧The second end

626‧‧‧Mobile space

64‧‧‧Second Wing

642‧‧‧The first end

644‧‧‧The second end

646‧‧‧Mobile space

66‧‧‧tube

662‧‧‧Socket hole

664‧‧‧Slot

80‧‧‧Extended tube

81‧‧‧ring rib

812‧‧‧Shaft seal

82‧‧‧channel

84‧‧‧First

86‧‧‧The second end

88‧‧‧Shaft seal ring

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

Fig. 2 shows an exploded schematic view of the structure of the shaft body in the rotor for kneading of the present invention.

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

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

FIG. 5 shows an enlarged view of part of FIG. 4.

FIG. 6 is an exploded schematic view of elements of another embodiment of the wing portion of the shaft body constituting a tube body in the present invention.

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

8 is a schematic sectional view of another embodiment of the rotor for kneading of the present invention.

FIG. 9 shows an enlarged view of part of FIG. 6.

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

The specific embodiments which are only examples but not for limitation are described below with reference to the attached drawings. The preferred contents of the present invention are explained as follows: As shown in FIGS. 1 to 5, the rotor 10 for kneading of the present invention is The rotor 10 for two kneading can be horizontally arranged in a kneading chamber and rotated in the opposite direction to each other for kneading operation by being driven downward by a driving source such as a motor not shown.

The rotor 10 for kneading of the present invention includes 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 and is formed in An intermediate section 26 between the first and second shaft ends 22, 24, the first shaft end 22 and the second shaft end 24 have concentrically arranged outer shaft surfaces, and the first shaft end 22 and the second shaft end 24. Bearings are set and erected in a mixing chamber to enable the shaft 20 to rotate; the outer surface of the middle section 26 of the shaft 20 has at least one first wing 62 or at least one second wing 64 , The first wing portion 62 and the second wing portion 64 are spaced apart in the axial direction and are distributed on the outer surface of the middle section 26, and the first wing portion 62 is opposite to each other according to its screw direction It is divided into a first end 622 and a second end 624. The second wing 64 is relatively divided into a first end 642 and a second end 644 according to its screwing direction; the first wing 62 can be An equiangular ring is provided on the outer surface of the middle section 26. In the figure, two first wing portions 62 are separated according to their axial directions and an equiangular ring is provided on the outer surface of the middle section 26, which is The number of the second wing portions 64 provided in the portion 62 in matching numbers is also divided according to its axial direction and the equiangular ring is provided on the outer surface of the middle section 26.

The first wing portion 62 and the second wing portion 64 are hollow bodies 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 on the outer surface of the middle section 26 of the shaft body 20 after the first choke is completed.

Regarding the configuration design of the first wing portion 62 or the second wing portion 64 of the rotor 10 for kneading, there are different numbers of configurations, positions, or different screwing angles due to factors such as kneading efficiency, The positions and numbers of the first wing portion 62 and the second wing portion 64 illustrated in this specification are merely a preferred embodiment to facilitate the description of the present invention, and do not limit the invention to the first wing portion 62 or the second wing. The number of installations, placement positions, etc. of the part 64 may be implemented with possible changes, and 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 having at least one axial channel 28 extending toward the second shaft end 24. In the figure, the shaft The directional channel 28 is concentric with the central axis of the shaft body 20. The axial channel 28 forms an opening 282 on the side end surface 222. In the embodiment of FIG. 1, the axial channel 28 is coaxial 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 channel 21 extending from the side end surface 222 to the second shaft end 24, the cooling channel 21 is in the radial direction of the shaft body 20 and the axial direction The channels 28 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 first or second wings 62, 64, and each cooling channel 21 further includes a longitudinal direction formed in the cooling A first diverting channel 212 between the channel 21 and the flow space 626 of the second end 624 of the opposite first wing 62, and, in a longitudinal direction, the axial channel 28 and the first end of the opposite first wing 62 A first branching channel 214 between the flow spaces 626 of 622.

As for the second wing portion 64, each cooling channel 21 further includes a second portion formed longitudinally between the cooling channel 21 and the flow space 646 of the second end 644 of the opposite second wing portion 64 The flow channel 216 and, in a longitudinal direction, a second diverging channel 218 formed 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 of the cooling medium flow, and the axial channel 28 can form a first-class outlet of the cooling medium flow; the cooling medium enters the interior of the rotor 10 for kneading from the cooling channel 21, and the first branching channel 212. The second branching channel 216 flows into the flow spaces 626, 646 of the opposing first wing part 62 and the second wing part 64, and flows to the axis from the opposing first branching channel 214 and the second branching channel 218 It is output to the channel 28 through the opening 282 of the axial channel 28, so as to circulate and cool the first and second wings 62, 64 of the rotor 10 for kneading; in the present invention, the cooling channel 21 and the shaft Under the implementation of the technical features of the separate arrangement of the channel 28, the cooling medium can directly enter the flow spaces 626, 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 shielded from the side end surface 222 of the first axial end 22 of the shaft body 20. The cover 40 has an inner end surface 42 engaged with the side end surface 222 and The inner end surface 42 is an outer end surface 44 spaced apart in an axial direction. Between the inner end surface 42 and the outer end surface 44 there is a stepped perforation 46 interposed therebetween and disposed relative 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 adjacent to the inner end surface 42 and forms a large diameter adjacent to the outer end surface 44 Section 464, the rear section 464 forms an external interface 466 on the outer end surface 44, as shown in FIG. 4, the perforated external interface 466 is coaxially arranged with the central axis of the shaft body 20; in accordance with the number of cooling channels 21 provided, the cover The inner end surface 42 of the 40 has at least one guide channel 48 communicating with the rear section 464 of the perforation 46 at the position of the cooling channel 21 relative to the side end surface 222 of the shaft body 20. As shown in the figure, the guide channel 48 includes A transverse section 482 extending laterally of the inner end surface 42 and a longitudinal direction extending longitudinally from the transverse section 482 to the rear section 464 Paragraph 484.

The cover 40 further includes an extension tube 80 which can be pivotally arranged relative to the perforation 46. The extension tube 80 has a channel 82 formed at the diameter of the tube and a first pivotally arranged and sealingly joined to the front section 462 of the perforation 46. One end 84 and a second end 86 extending away from the first end 84 and formed outside the outer port 466 are disposed coaxially with the outer port 466, the outer surface of the extension tube 80 and the rear section 464 rooms will constitute a flow space 423; in a preferred embodiment disclosed in the drawings, 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 ring 88 seals the axial gap between the outer surface of the extension tube 80 and the wall of the hole of the front section 462, and makes the extension tube 80 pivotally movable 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 channel 28, and the outer surface of the first end 84 has a A ring rib 81 has a shaft seal 812 on the outer surface to seal the channel between the inner wall of the axial channel 28 and the outside of the extension tube 80.

In terms of the implementation of the cover 40, the outer port 466 of the cover 40 and the second end 86 of the extension tube 80 are provided with a dual-circuit rotary joint 30 (rotary joint) for connection. The dual-circuit rotary joint 30 is a common practice. Knowing the components, the rotary joint is a rotating mechanical seal device, which is a transition part that inputs the medium from the fixed supply line to the rotary drum, and the dual-circuit rotary joint 30 is provided with a first passage 34 and The double circuit of the second passage 36 is implemented. In the figure, the rotary joint 30 can be locked with an end cover 38 and closed at the port 466 outside the perforation 46 of the cover 40, and the second end 86 of the extension tube 80 is connected to the rotation An internal passage of the joint 30, as shown in the implementation 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 pipe 80 The second passage 36 of the rotary joint 30 communicates.

In the configuration of the rotor 10 for kneading of the present invention, the inner end surface 42 of the cover 40 is engaged and shielded on the side end surface 222 of the first shaft end 22 of the shaft body 20, and the guide passages 48 of the cover 40 are located opposite to each other. The cooling channel 21, the cooling channel 21 and the guide channel 48 form a communication channel; the front section 462 of the perforation 46 of the cover 40 relatively communicates with the axial channel 28, and oppositely, the channel 82 of the extension tube 80 communicates with the The axial channel 28 forms a communicating path; in addition, the extension tube 80 may have the design of the ring rib 81, and the first end 84 of the extension tube 80 may be movably engaged in the axial channel 28, the ring rib 81 It also assists the communication state of the passage between the channel 82 and the axial channel 28 of the extension tube 80.

Based on the installation and implementation of the cover 40 in the present invention, it can achieve the implementation of the two horizontally arranged cooling channels 21 and axial channels 28 in the same axial input and output settings; although the extension tube 80 is part The partial pipe 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 channel 82 of the extension pipe 80. However, by sealing With the implementation of the structure of the cover 40, the implementation length of the rear section 464 can be effectively reduced, and the reduced contact area can reduce the heat exchange effect and cause a large change in the implementation temperature value of the incoming cooling medium, which in turn affects 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 that enters the flow space 423 passes through the guide channel 48 leads to the cooling channel 21, as described above, the cooling medium enters the interior of the kneading rotor 10 from the cooling channel 21, flows into the first wing portion 62 and the second wing from the first branch channel 212, the second branch channel 216 The flow space 626, 646 of the part 64 flows from the first branching channel 214 and the second branching channel 218 into the axial channel 28, and the channel 82 of the extension tube 80 communicating with the axial channel 28 will guide the circulation After the cooling medium is transferred by the second passage 36 of the rotary joint 30 To form a cooling cycle.

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

In terms of the configuration and implementation of the first wing 62 or the second wing 64, the present invention can also be as disclosed in the patent case of the Republic of China Invention No. I579038 "Agitator Shaft Cooling Device of a Chain Mixer". The wing portion 62 or the second wing portion 64 is casted on a tubular body, and then the tubular body and the shaft body 20 are welded and fixed to form a kneading rotor. As shown in FIGS. 6 and 7, the first wing part 62 and the second wing part 64 are integrally cast with a tube 66. In order to express the first wing part 62 and the second wing part 64, there may be Different arrangements are shown in an arrangement different from FIG. 1; the shaft 20 may further include a tube 66, two first wings 62 are looped around one end of the tube 66, and two second The wing portion 64 is set at the opposite end of the tube body 66 in the axial direction. As described above, the tube body 66 may not have the second wing portion 64; the tube body 66 may be connected to the shaft body 20. The intermediate section 26 is sleeve-fitted with a socket hole 662, and the socket hole 662 is welded and fixed after being sleeved on the shaft body 20, and each of the first wing portion 62 and each of the second wing portions 64 are formed in the socket There is a flow space 626, 646 between the holes 662, and the inner surface of the socket hole 662 has a channel 664 communicating between the flow spaces 626, 646. The channel 664 is screwed between the axial length distance of the socket hole 662, and with the setting of the channel 664 in the socket hole 662, the cooling medium can be a distance in the axial direction to the tube body 66 In addition to the axial channel 28, the side end surface 222 of the shaft body 20 can be provided with a cooling channel 21 and the axial channel 28 extending horizontally, and a first branch channel 212 is located in the tube One end of the body 66 communicates with the cooling channel 21 and a first Between the flow space 626 of the wing 62 or the channel 664, and a first branching channel 214 at the other axial end of the tube 66 communicates with the flow space 646 of the axial channel 28 and the second wing 64 (When the second wing 64 is not implemented, it is the flow space 626 of the first wing 62 at an axial separation distance) or between the channels 664; the first diverting channel 212 and the first diverging channel 214 are between When the tube body 66 is spaced apart at an axial distance, the cooling medium enters the flow space 626 or the channel 664 between the tube body 66 and the shaft body 20 through the first shunt channel 212 from the cooling channel 21, and then the cooling medium After the spiral groove 664 flows through the flow spaces 626, 646, the first branching channel 214 is led to the axial channel 28 to flow out to complete a cooling cycle.

With respect to the above 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 FIGS. 8 and 9 for the purpose of showing the cooling medium. 8 and 9 only show the implementation of the two first wings 62, and the first wings 62 that are screwed in are deployed in a straight line, and the axial channel 28, the cooling channel 21, and the first branch channel 212 and the first bifurcated channel 214 are also represented in a cross-sectional end surface. In FIGS. 8 and 9, the side end surface 222 of the shaft body 20 has two axial channels 28 extending toward the second shaft end 24. The two axial channels 28 are adjacent to each other according to the mandrel of the shaft body 20. The two axial channels 28 each have an opening 282 formed on the side end surface 222; the first shaft end 22 of the shaft body 20 further includes Two cooling channels 21 extending from the side end surface 222 to the second shaft end 24, and each cooling channel 21 corresponds to an axial channel 28 that is spaced apart from each other in the radial direction of the shaft body 20; A cooling medium circulation path is formed between the corresponding cooling channel 21 and a flow space 626 corresponding to the first wing 62. As shown in the figure, a cooling channel 21 has a flow space 626 corresponding to a corresponding first wing 62 A first branching channel 212, and the flow space 626 and a corresponding axial channel 28 have a first branching channel 214; and the structural characteristics of the cover 40 opposite the shaft body 20 changes, the perforation Before 46 The aperture of section 462 contains an opening 282 that includes the two axial channels 28, and the first end 8 of the extension tube 80 is extended and sealingly engaged and 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 its port 32, and the cooling medium that enters the flow space 423 passes through the guide channel 48 leads to each cooling channel 21, and the cooling medium enters the interior of the rotor 10 for kneading 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 therewith. The first divergent channel 214 between the flow space 626 and its corresponding axial channel 28 will cause the cooling medium to flow to the axial channel 28, and the channel 82 of the extension tube 80 communicating with the axial channel 28 will The cooling medium after the guide 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.

The above-mentioned 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 cooling medium flow direction. As for the cooling medium, the circulation path can also flow in from the axial channel 28 and flow out from the cooling channel 21.

Based on the implementation advantages of the cover 40 described above, in a feasible embodiment, the transverse section 482 in the guideway 48 of the cover 40 can be formed by an annular groove 41 formed on the inner end surface 42 and the longitudinal section 482 is formed between the ring groove 41 and the rear section 464, as shown in FIG.

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

10‧‧‧Rotor for mixing

20‧‧‧Shaft

21‧‧‧cooling channel

212‧‧‧First shunt channel

214‧‧‧ First branch channel

216‧‧‧Second shunt channel

218‧‧‧The second branch channel

22‧‧‧First shaft end

24‧‧‧The second shaft end

26‧‧‧ middle section

28‧‧‧Axial channel

30‧‧‧Swivel joint

32‧‧‧port

34‧‧‧ First Path

36‧‧‧Second access

40‧‧‧Cover

423‧‧‧ mobile space

46‧‧‧Perforation

462‧‧‧First paragraph

464 ‧‧‧

48‧‧‧ Approach

62‧‧‧The first wing

622‧‧‧The first end

624‧‧‧The second end

626‧‧‧Mobile space

642‧‧‧The first end

644‧‧‧The second end

646‧‧‧Mobile space

80‧‧‧Extended tube

81‧‧‧ring rib

82‧‧‧channel

84‧‧‧First

86‧‧‧The second end

Claims (10)

A rotor (10) for mixing includes: a shaft body (20) having a first shaft end (22) and a second shaft end (24) spaced apart in an axial direction And an intermediate section (26) formed between the first and second shaft ends (22), (24), the outer surface of the intermediate section (26) has at least a first wing (62), the first The wing (62) is a hollow body with a flow space (626). The first shaft end (22) of the shaft body (20) includes a side end face (222), and the side end face (222) has a At least one axial channel (28) and at least one cooling channel (21) extending from the two shaft ends (24), the axial channel (28) abuts the central axis of the shaft body (20), and the cooling channel (21) There is a first branch channel (212) between the flow space (626) of a corresponding first wing (62), and there is a between the flow space (626) and the corresponding axial channel (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 spaced-apart outer end face (44), between the inner end face (42) and the outer end face (44), has a perforation (46) coaxially with the central axis of the shaft body (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), the inner end surface (42) has a cooling channel (21) opposite and communicates with the perforation ( 46) At least one guide channel (48) between the rear sections (464); the cover (40) further includes an extension tube (80) pivotally disposed at the perforation (46), the extension tube (80) having A channel (82) of its pipe diameter and a first end (84) and a second end (86) spaced apart in its axial direction, the first end (84) is sealed and pivotally connected to the perforation (46) ) The front section (462) and the second end (86) extend from the outer end surface (44), and a flow space (423) is formed between the extension pipe (80) and the rear section (464). The rotor (10) for kneading as described in item 1 of the scope of the patent application, in which the two first wings (62) are ringed Distributed on the outer surface of the middle section (26) of the shaft body (20), the two cooling channels (21) each correspond to a corresponding first wing portion (62) from the side end surface (222) to the second shaft end ( 24) Extended distribution, each cooling channel (21) and the flow space (626) of the opposite first wing (62) each have a first branching channel (212), each of the first wing (62) 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) is connected to the cooling channel (21) Perforated (46) the second approach (48) in the rear section (464). The rotor (10) for kneading as described in item 2 of the patent application scope, wherein the side end surface (222) of the shaft body (20) includes two axial channels (28) and two cooling channels (21), the two shafts The direction channels (28) are relatively distributed at the position of the mandrel of the shaft body (20), and each axial channel (28) forms an opening (282) at the side end surface (222), and each cooling channel (21) corresponds to it Between the flow space (626) of a first wing (62), there is a first branching channel (212), and each axial channel (28) corresponds to the flow space (626) of the first wing (62) ) Has a first bifurcated channel (214); the hole (46) in front of the perforation (46) of the cover (40) has an aperture (282) for accommodating the two axial channels (28). The rotor (10) for kneading as described in item 1 or item 2 of the patent application scope, wherein the outer surface of the intermediate section (26) of the shaft body (20) further includes the first wing (62) At least one second wing (64) spaced apart in the axial direction, the second wing (64) is a hollow body with a flow space (646), a cooling channel (21) and a corresponding first Between the flow space (646) of the two wing parts (64) there is a second branching channel (216), the flow space (646) of a second wing part (64) and a corresponding axial channel (28) There is a second branching channel (218). The rotor (10) for kneading as described in item 1 or item 2 of the scope of patent application, wherein the approach (48) of the cover (40) has a lateral section extending laterally from the inner end surface (42) ( 482) and a longitudinal section (482) extending longitudinally from the transverse section (482) to the rear section (464). The rotor (10) for kneading as described in item 5 of the patent application scope, wherein the transverse section (482) is constituted by an annular groove (41) formed on the inner end surface (42). The rotor (10) for kneading as described in item 1 of the scope of the patent application, wherein the perforation (46) has a shaft sealing ring (88) before the section (462), and the shaft sealing ring (88) seals the extension tube (80) ) Outer surface. The rotor (10) for kneading as described in item 1 or 7 of the 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 rotor (10) for kneading as described in item 1 of the patent application scope, wherein the outer surface of the first end (84) of the extension tube (80) has a ring rib (81) extending in the radial direction, the The ring rib (81) is movably sealed to the inner surface of the axial channel (28). The rotor (10) for kneading as described in item 1 of the patent application scope, wherein the shaft body (20) further includes a tube body (66), and the first wing portion (62) is formed in the tube body (66) ) The outer surface, the axial direction of the tube body (66) has a set of connecting holes (662) that can be sleeve-fitted with the middle section (26) of the shaft body (20), and the inner surface of the set of connecting holes (662) There is at least one channel (664) screwed into the axial length of the sleeve hole (662), the channel (664) passes through the flow space (626) of the first wing (62), the first A branching channel (212) communicates between the channel (664) and the cooling channel (21), and the first branching channel (214) communicates between the channel (664) and the axial channel (28) .

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