CN210950348U - CPH oil circuit rotary distributor device - Google Patents

Abstract

The utility model discloses a CPH oil circuit rotary distributor device, which belongs to the technical field of hydraulic equipment and comprises a rotary mechanism, wherein the rotary mechanism comprises a shell and an inner core, the inner core is arranged in the shell and can rotate relative to the shell, a plurality of oil storage cavities are arranged between the shell and the inner core, a plurality of second joints are arranged on the shell, a plurality of oil outlet channels are arranged in the inner core, and each oil storage cavity is communicated with at least one second joint and at least one oil outlet channel; a fixing mechanism on which a plurality of first joints are arranged; the two protection shells are rotatably connected, one protection shell is rotatably connected to the fixing mechanism, and the other protection shell is connected to the shell; the first hose is provided with a plurality of, and every first hose all wears to locate two protective housing, and one end is connected in at least one first joint, and the other end is connected in the second that corresponds and is connected. This rotatory distributor device of CPH oil circuit can avoid first hose intertwine, improves the machining efficiency of lathe.

Description

CPH oil circuit rotary distributor device

Technical Field

The utility model relates to a hydraulic equipment technical field especially relates to a CPH oil circuit rotary distributor device.

Background

The hydraulic power unit is as the core power unit part device of digit control machine tool, and its connected mode with the tool on the lathe mainly keeps being connected through adapter and oil pipe, and this kind of connected mode makes oil pipe distribute the dispersion to in the occasion that the tool need rotate or remove, oil pipe intertwine easily, not only influence the normal supply of hydraulic oil, winding oil pipe can restrict the rotation or the removal of tool to a certain extent in addition, influences the machining efficiency of lathe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatory distributor device of CPH oil circuit to solve the oil pipe that exists among the prior art and rotate or twine easily when removing along with the tool, influence the normal supply of hydraulic oil and the machining efficiency's of lathe problem.

As the conception, the utility model adopts the technical proposal that:

a CPH oil circuit rotary distributor device comprises a rotary mechanism, a rotary mechanism and an oil outlet channel, wherein the rotary mechanism comprises a shell and an inner core, the inner core is arranged in the shell and can rotate relative to the shell, a plurality of oil storage cavities are arranged between the shell and the inner core, a plurality of second joints are arranged on the shell, a plurality of oil outlet channels are arranged in the inner core, each oil storage cavity is communicated with at least one second joint and at least one oil outlet channel, the inner core can be connected to a jig on a machine tool, and each oil outlet channel is used for supplying oil to a corresponding hydraulic component on the jig;

a fixing mechanism on which a plurality of first joints are arranged;

the two protection shells are rotatably connected, one protection shell is rotatably connected to the fixing mechanism, and the other protection shell is connected to the shell;

the first hose is provided with a plurality of, every first hose all wears to locate two in the protective housing, and one end connect in at least one first joint, the other end connect in corresponding the second connects.

Furthermore, the outer peripheral surface of the inner core is provided with a plurality of first annular grooves which are distributed along the axial direction of the inner core, a first rotary sealing ring is arranged on an annular protrusion between every two adjacent first annular grooves, the first rotary sealing ring is pressed against the inner wall of the shell, and the oil storage cavity is formed between every two adjacent first rotary sealing rings.

Further, rotary mechanism still includes the chassis, the chassis is used for connecting the tool, inner core one end rigid coupling in the chassis, outer shell locates on the inner core.

Furthermore, a plurality of oil through holes are formed in the base plate, the number of the oil through holes is the same as that of the oil outlet channels, the oil through holes are communicated in a one-to-one correspondence mode, and each oil through hole is used for supplying oil to the corresponding hydraulic component.

Further, the rotating mechanism further comprises an inner shaft, the inner shaft comprises a central shaft and a top disc which are connected, the inner core can be rotatably sleeved on the central shaft, and the outer shell is fixedly connected to the top disc.

Furthermore, a first hole is formed in the central shaft and extends axially along the central shaft, the first hole penetrates through the central shaft and is far away from one end of the top disc, a second hole communicated with the first hole is formed in the top disc, a third connector communicated with the second hole is arranged on the top disc, the third connector is connected to a fourth connector on the fixing mechanism through a second hose, and the second hose penetrates through the two protective shells.

Furthermore, a one-way valve structure is arranged in the first hole and conducted in the direction far away from the top disc.

Furthermore, a plurality of accommodating cavities are arranged between the central shaft and the inner core, a plurality of fifth joints and a plurality of conveying channels are arranged on the inner shaft, each accommodating cavity is communicated with at least one fifth joint and at least one conveying channel, each fifth joint is connected to the corresponding first joint through one third hose, and the third hose penetrates through the two protective shells.

Furthermore, the CPH oil path rotary distributor device further comprises a housing, the housing can be connected to the machine tool, the housing is provided with a plurality of first ports, one end of each first port can be connected to a hydraulic oil supply unit through a pipeline, and the other end of each first port is connected to one of the first joints through a pipeline.

Further, the CPH oil path rotary distributor device further comprises a connecting mechanism, wherein the connecting mechanism comprises a first connecting piece and a second connecting piece which are rotatably connected, the first connecting piece is rotatably connected to one of the two protective housings, and the second connecting piece is fixedly connected to the other of the two protective housings.

The utility model has the advantages that:

the utility model provides a rotatory distributor device of CPH oil circuit, through setting up rotary mechanism, fixed establishment, protection casing and a plurality of first hose, the inner core can rotate relative to the shell, be provided with a plurality of oil storage chambers between inner core and the shell, be provided with a plurality of second joints on the shell, be provided with a plurality of oil channels in the inner core, every oil storage chamber communicates in at least one second joint and at least one oil channel, the inner core can be connected to the tool, each oil channel all can be connected to the corresponding hydraulic component on the tool through oil pipe; two protection casings rotate to be connected, and one of them protection casing rotates to be connected in fixed establishment to in two protection casings were worn to locate by first hose, consequently at the tool working process, this CPH oil circuit rotary distributor device can be along with the removal of tool or rotate and come the motion, can avoid first hose intertwine, guarantee that hydraulic oil can normally supply with, improve the machining efficiency of lathe.

Drawings

Fig. 1 is a schematic structural diagram of a CPH oil-way rotary distributor device provided by the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic view of a partial structure of the CPH oil path rotary distributor device provided by the present invention;

fig. 4 is a schematic structural diagram of a rotating mechanism provided by the present invention;

fig. 5 is a schematic structural diagram of a rotating mechanism (with the housing removed) provided by the present invention;

fig. 6 is a schematic structural view of the inner shaft provided by the present invention;

fig. 7 is a schematic cross-sectional view of a rotating mechanism provided in the present invention.

In the figure:

1. a rotation mechanism; 11. a housing; 111. a second joint; 12. an inner core; 121. a first annular groove; 122. an oil outlet channel; 13. a chassis; 14. an inner shaft; 141. a top tray; 1411. a second hole; 1412. a third joint; 1413. a fifth joint; 142. a central shaft; 1421. a second annular groove; 1422. a delivery channel; 1423. a first hole;

2. a fixing mechanism; 21. a first joint; 22. a fourth joint;

3. a protective housing; 31. a first housing; 32. a second housing;

4. a connecting mechanism; 41. a first connecting member; 42. a second connecting member; 43. a protective cover;

51. a first rotary seal ring; 52. a second rotary seal ring; 53. a third rotary seal ring;

61. a first bearing; 62. a second bearing;

10. an oil storage chamber; 20. a receiving cavity.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 to 7, the present embodiment provides a CPH (Hydraulic Center) oil path rotary distributor device, which includes a rotary mechanism 1, a fixing mechanism 2, a protective casing 3 and a plurality of first hoses (not shown in the drawings).

Wherein the fixing mechanism 2 can be connected to a machine tool, in this embodiment, the fixing mechanism 2 is a box-shaped structure having an opening on one side, and a fourth joint 22 and a plurality of first joints 21 are provided on the side opposite to the opening. The CPH oil path rotary distributor device further includes a housing (not shown in the figure), the housing can be connected to the machine tool, the housing is provided with a plurality of first ports, and each first port is connected to one of the first joints 21 through a pipeline. The housing is further provided with a second interface, and the second interface is connected to the fourth joint 22 through a pipeline. The first interface can be connected to a hydraulic oil supply unit through a pipeline to realize the transmission of hydraulic oil; the first interface can also be connected to a high-pressure air source through a pipeline to realize the delivery of high-pressure air. The second interface can be connected to a cooling liquid source to realize the conveying of the cooling liquid. It can be understood that the housing and the fixing mechanism 2 of the CPH oil circuit rotary distributor device are fixed on the machine tool, and stable delivery of hydraulic oil, high-pressure air and cooling liquid is ensured.

The number of the protection housings 3 is two, and in this embodiment, the protection housing 3 is a cylindrical structure with openings at both ends, and for convenience of description, the two protection housings 3 are respectively defined as a first protection housing and a second protection housing, one end of the first protection housing is rotatably connected to the fixing mechanism 2, the other end of the first protection housing is rotatably connected to the second protection housing, and one end of the second protection housing, which is far away from the first protection housing, is connected to the rotating mechanism 1. Through above-mentioned mode of setting up, can make first protection casing and second protection casing rotate relatively or both rotate 2 relatively fixed establishment. In addition, in the present embodiment, the protection housing 3 includes a first housing 31 and a second housing 32 connected at a predetermined included angle, and the two first housings 31 of the two protection housings 3 are rotatably connected. Alternatively, the top plates of the first and second housings 31 and 32 are each disposed obliquely to reduce the accumulation of dust or garbage.

In order to realize the rotary connection between the first protective casing and the second protective casing, the CPH oil path rotary distributor device further comprises a connecting mechanism 4, wherein the connecting mechanism 4 comprises a first connecting piece 41 and a second connecting piece 42 which are rotatably connected, the first connecting piece 41 is rotatably connected to one of the two protective casings 3, and the second connecting piece 42 is fixedly connected to the other one of the two protective casings 3. The connecting mechanism 4 further comprises a protective cover 43, and the protective cover 43 is covered on the first connecting piece 41. By providing the protective cover 43, it is possible to prevent dust and impurities from being deposited on the first connecting member 41 at the position where it is connected to the protective case 3 and the second connecting member 42, thereby ensuring that the first connecting member 41 and the second connecting member 42 can smoothly rotate. Through setting up coupling mechanism 4, can guarantee that two protection casings 3 when removing along with the tool, coupling mechanism 4 can adjust the distance between two protection casings 3, makes this CPH oil circuit rotary distributor device satisfy the removal demand of tool.

The rotating mechanism 1 comprises an outer shell 11 and an inner core 12, wherein the outer shell 11 is connected to one end of the second protective shell, which is far away from the first protective shell. The inner core 12 is disposed in the outer shell 11 and can rotate relative to the outer shell 11, a plurality of oil storage cavities 10 are disposed between the outer shell 11 and the inner core 12, the outer shell 11 is provided with a plurality of second joints 111, the inner core 12 is provided with a plurality of oil outlet channels 122, and each oil storage cavity 10 is communicated with at least one second joint 111 and at least one oil outlet channel 122. The inner core 12 can be connected to a jig on a machine tool, and each oil outlet channel 122 is connected to a corresponding hydraulic component on the jig through an oil pipe along with movement or rotation of the jig. Each first hose is inserted into the two protection shells 3, and one end of each first hose is connected to at least one first connector 21, and the other end of each first hose is connected to the corresponding second connector 111.

It can be understood that the hydraulic oil at the first joint 21 enters the corresponding hydraulic component through the corresponding first hose, the second joint 111, the oil storage chamber 10, and the oil outlet passage 122, so as to achieve hydraulic control of the hydraulic component. Because inner core 12 can rotate for shell 11, two protection casings 3 rotate to be connected, and first protection casing rotates to be connected in fixed establishment 2 to first hose is worn to locate in two protection casings 3, consequently can be in tool working process, and this CPH oil circuit rotary distributor device can move along with the removal of tool or rotation, avoids first hose intertwine, thereby guarantees that hydraulic oil can normally supply with, improves the machining efficiency of lathe.

Specifically, the inner core 12 is a cylindrical structure, the outer peripheral surface of the inner core 12 is provided with a plurality of first annular grooves 121 arranged at intervals along the axial direction thereof, a first rotary sealing ring 51 is arranged on an annular protrusion between two adjacent first annular grooves 121, the first rotary sealing ring 51 is pressed against the inner wall of the outer shell 11, and the oil storage cavity 10 is formed between two adjacent first rotary sealing rings 51. The housing 11 is also of a cylindrical structure, and optionally, in this embodiment, a third annular groove is provided on the inner wall surface of the housing 11 at a position corresponding to the first annular groove 121, and a fourth annular groove is provided at a position corresponding to the first rotary sealing ring 51, it can be understood that the first rotary sealing ring 51 is pressed against the inner wall of the fourth annular groove to seal between two adjacent oil storage chambers 10, and the third annular groove, the first annular groove 121 and two corresponding first rotary sealing rings 51 surround the oil storage chambers 10.

Specifically, in the present embodiment, the first annular groove 121 and the third annular groove are provided with six, so that the oil storage chambers 10 are also provided with six, the second joints 111 are also provided with six, the oil outlet passages 122 are also provided with six, the six oil storage chambers 10 are communicated with the six second joints 111 in a one-to-one correspondence manner, and the six oil storage chambers 10 are communicated with the six oil outlet passages 122 in a one-to-one correspondence manner. The first hoses are also provided with six first hoses and six second joints 111, wherein one end of each first hose is connected to one second joint 111, and the other end of each first hose is connected to at least one first joint 21, and in other embodiments, the number of the oil storage chambers 10, the number of the second joints 111 and the number of the oil outlet channels 122 can be set according to actual needs, and the number of the first hoses is set according to the number of the second joints 111.

The rotating mechanism 1 further comprises a base plate 13, the base plate 13 is used for connecting a jig, the inner core 12 is connected to the base plate 13, and the outer shell 11 is sleeved on the inner core 12. Specifically, in this embodiment, the inner core 12 is detachably connected to the chassis 13 through a bolt, a plurality of oil through holes are formed in the chassis 13, the oil through holes and the oil outlet passage 122 are in the same number and are communicated in a one-to-one correspondence manner, and it can be understood that hydraulic oil in the oil outlet passage 122 is communicated with corresponding hydraulic components through the corresponding oil through holes and the corresponding oil pipes. In order to prevent the hydraulic oil in the oil storage chamber 10 from leaking to the chassis 13, an annular protrusion is provided on the chassis 13, and a third rotary seal ring 53 is provided between the inner wall surface of the housing 11 and the annular protrusion, and in this embodiment, the third rotary seal ring 53 is preferably a V-shaped rotary seal ring.

The rotating mechanism 1 further includes an inner shaft 14, the inner shaft 14 includes a central shaft 142 and a top disc 141 connected to each other, the inner core 12 is sleeved on the central shaft 142, the outer shell 11 is fixedly connected to the top disc 141, and the top disc 141 and the bottom disc 13 are respectively located at two ends of the inner core 12 in the axial direction. It will be appreciated that the inner shaft 14 is integrally connected to the outer shell 11, the chassis 13 is integrally connected to the inner core 12, and the inner core 12 and the chassis 13 are rotatable relative to the outer shell 11 and the inner shaft 14. In order to improve the smoothness of the rotation of the inner core 12, a first bearing 61 is arranged between the inner core 12 and the outer shell 11, the first bearing 61 is sleeved on the inner core 12, and the first bearing 61 is fixedly connected to the inner core 12 or the outer shell 11; a second bearing 62 is disposed between the inner core 12 and the central shaft 142, the second bearing 62 is sleeved on the central shaft 142, and the second bearing 62 is fixedly connected to the inner core 12 or the central shaft 142. In the present embodiment, two first bearings 61 and two second bearings 62 are provided, the two first bearings 61 are respectively located at two ends of the inner core 12 in the axial direction, and the two second bearings 62 are also respectively located at two ends of the inner core 12 in the axial direction. Further, in the present embodiment, the first bearing 61 is preferably a deep groove ball bearing, and the second bearing 62 is preferably a needle bearing for a flower basket.

A first hole 1423 extending along the axial direction of the central shaft 142 and penetrating through one end of the central shaft 142 far from the top plate 141 is arranged in the central shaft 142, a second hole 1411 communicating with the first hole 1423 is arranged in the top plate 141, the first hole 1423 and the second hole 1411 form a transmission channel, a third joint 1412 communicating with the second hole 1411 is arranged on the top plate 141, the third joint 1412 is connected to the fourth joint 22 on the fixing mechanism 2 through a second hose, and the second hose penetrates through the two protection shells 3. The fourth connector 22, the second hose, the third connector 1412 and the transmission channel are used for conveying cooling liquid or cleaning liquid, the cooling liquid is used for cooling the jig, and the cleaning liquid is used for cleaning the positioning surface of the jig, so that foreign matters and impurities on the positioning surface are kept.

This rotatory distributor device of CPH oil circuit still includes the mounting plate, and the mounting plate is connected in chassis 13, offers the through-hole that makes center pin 142 stretch into on chassis 13, and center pin 142 can wear to establish the hole rotation relatively, is provided with seal structure between the inner wall in center pin 142 and the through-hole. The CPH oil path rotary distributor device further comprises a fastening piece and an elastic piece, wherein the fastening piece is provided with a through hole along the axial direction, one end of the fastening piece penetrates through the fastening plate and extends into the first hole 1423, in addition, the fastening piece is further provided with a limiting piece, and the elastic piece is sleeved on the fastening piece and is located between the central shaft 142 and the limiting piece, so that the compression amount of the elastic piece can be adjusted through the fastening piece, a proper gap is kept between the central shaft 142 and the fastening plate, and friction between the central shaft 142 and the fastening plate is avoided.

In addition, the outer peripheral surface of the central shaft 142 is provided with a plurality of second annular grooves 1421 arranged at intervals along the axial direction thereof, a second rotary sealing ring 52 is arranged on the annular protrusion between two adjacent second annular grooves 1421, the second rotary sealing ring 52 is pressed against the inner wall of the inner core 12, and an accommodating cavity 20 is formed between two adjacent second rotary sealing rings 52. Optionally, in order to improve the rotary sealing effect, a fifth annular groove is formed on the inner circumferential surface of the inner core 12 at a position corresponding to the second annular groove 1421, and a sixth annular groove is formed at a position corresponding to the second rotary sealing ring 52, it can be understood that the second rotary sealing ring 52 is pressed against the inner wall of the sixth annular groove, and the accommodating cavity 20 is defined between the fifth annular groove and the corresponding second annular groove 1421 and between the two corresponding second rotary sealing rings 52. A plurality of conveying channels 1422 communicated with each accommodating cavity 20 are formed in the inner shaft 14, the conveying channels 1422 penetrate through the top disc 141 and the central shaft 142, a plurality of fifth joints 1413 are arranged on the top disc 141, one end of each conveying channel 1422 is communicated with at least one fifth joint 1413, the other end of each conveying channel 1422 is communicated with one accommodating cavity 20, each fifth joint 1413 is connected to the corresponding first joint 21 through a third hose (not shown in the figure), and the third hose is also arranged in the two protective housings 3 in a penetrating manner.

The fifth joint 1413, the third hose, the conveying channel 1422 and the accommodating cavity 20 are mainly used for conveying clean gas, and the gas is mainly used for detecting the size of a gap between a workpiece and a positioning surface of a machine tool fixture or detecting whether the workpiece is in good contact with the positioning surface of the machine tool fixture in the clamping process, so that accurate and precise positioning of the part is guaranteed. Specifically, in this embodiment, the number of the fifth joints 1413, the number of the conveying channels 1422, and the number of the accommodating cavities 20 are the same, and six fifth joints 1413 are respectively provided and communicated with six conveying channels 1422 in a one-to-one correspondence manner, and six conveying channels 1422 are respectively provided and communicated with six accommodating cavities 20 in a one-to-one correspondence manner. Six third hoses are arranged and are correspondingly connected with six fifth joints 1413, one end of each third hose is connected with one fifth joint 1413, the other end of each third hose is connected with at least one first joint 21, in other embodiments, the number of the fifth joints 1413, the number of the conveying channels 1422 and the number of the accommodating cavities 20 can be set according to actual needs, and the number of the third hoses is correspondingly set according to the number of the fifth joints 1413.

In the present embodiment, the center shaft 142 and the top plate 141 constituting the inner shaft 14 are integrally formed for the convenience of processing and saving the assembly time of parts. Of course, in other embodiments, the central shaft 142 and the top plate 141 may be separately disposed.

In summary, the CPH oil path rotary distributor device provided in this embodiment includes, by providing the rotating mechanism 1, the fixing mechanism 2, the protection housing 3 and the plurality of first hoses, the inner core 12 can rotate relative to the outer shell 11, the plurality of oil storage cavities 10 are provided between the inner core 12 and the outer shell 11, the outer shell 11 is provided with the plurality of second joints 111, the inner core 12 is provided with the plurality of oil outlet channels 122, each oil storage cavity 10 is communicated with at least one second joint 111 and at least one oil outlet channel 122, the inner core 12 can be connected to a fixture, and each oil outlet channel 122 can be connected to a corresponding hydraulic component on the fixture through an oil pipe; two protection casings 3 rotate to be connected, and first protection casing rotates to be connected in fixed establishment 2 to in two protection casings 3 were worn to locate by first hose, consequently in the tool working process, this CPH oil circuit rotary distributor device can move along with the removal of tool or rotation, can avoid first hose intertwine, guarantees that hydraulic oil can normally supply with, improves the machining efficiency of lathe.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. A CPH oil circuit rotary distributor device, comprising:

the rotating mechanism (1) comprises an outer shell (11) and an inner core (12), wherein the inner core (12) is arranged in the outer shell (11) and can rotate relative to the outer shell (11), a plurality of oil storage cavities (10) are arranged between the outer shell (11) and the inner core (12), a plurality of second joints (111) are arranged on the outer shell (11), a plurality of oil outlet channels (122) are arranged in the inner core (12), each oil storage cavity (10) is communicated with at least one second joint (111) and at least one oil outlet channel (122), the inner core (12) can be connected to a jig on a machine tool, and each oil outlet channel (122) is used for supplying oil to corresponding hydraulic components on the jig;

a fixing mechanism (2) on which a plurality of first joints (21) are arranged;

two protective shells (3) are arranged, the two protective shells (3) are rotatably connected, one protective shell (3) is rotatably connected to the fixing mechanism (2), and the other protective shell (3) is connected to the shell (11);

the first hoses are arranged in a plurality of ways, each first hose penetrates through the two protection shells (3), one end of each first hose is connected to at least one first joint (21), and the other end of each first hose is connected to the corresponding second joint (111).

2. A CPH oil way rotary distributor device according to claim 1, wherein the outer peripheral surface of the inner core (12) is provided with a plurality of first annular grooves (121) arranged along the axial direction thereof, a first rotary sealing ring (51) is arranged on an annular bulge between two adjacent first annular grooves (121), the first rotary sealing ring (51) is pressed against the inner wall of the outer shell (11), and the oil storage cavity (10) is formed between two adjacent first rotary sealing rings (51).

3. A CPH oil-way rotary distributor device according to claim 2, wherein the rotary mechanism (1) further comprises a chassis (13), the chassis (13) is used for connecting the jig, one end of the inner core (12) is fixedly connected to the chassis (13), and the outer shell (11) is sleeved on the inner core (12).

4. A CPH oil way rotary distributor device according to claim 3, wherein the chassis (13) is provided with a plurality of oil through holes, the number of the oil through holes is the same as that of the oil outlet channels (122), the oil through holes are communicated with one another in a one-to-one correspondence manner, and each oil through hole is used for supplying oil to the corresponding hydraulic component.

5. A CPH oil circuit rotary distributor device according to claim 1, wherein the rotary mechanism (1) further comprises an inner shaft (14), the inner shaft (14) comprises a central shaft (142) and a top disc (141) connected to each other, the inner core (12) is rotatably sleeved on the central shaft (142), and the outer shell (11) is fixed to the top disc (141).

6. A CPH oil way rotary distributor device according to claim 5, characterized in that a first hole (1423) extending along the axial direction of the central shaft (142) and penetrating through one end of the central shaft (142) far away from the top disc (141) is arranged in the central shaft (142), a second hole (1411) communicating with the first hole (1423) is arranged in the top disc (141), a third joint (1412) communicating with the second hole (1411) is arranged on the top disc (141), the third joint (1412) is connected to a fourth joint (22) on the fixing mechanism (2) through a second hose, and the second hose is arranged in the two protection shells (3) in a penetrating way.

7. A CPH oil way rotary distributor device according to claim 5, characterized in that a plurality of containing cavities (20) are arranged between the central shaft (142) and the inner core (12), a plurality of fifth joints (1413) and a plurality of conveying channels (1422) are arranged on the inner shaft (14), each containing cavity (20) is communicated with at least one fifth joint (1413) and at least one conveying channel (1422), each fifth joint (1413) is connected with the corresponding first joint (21) through a third hose, and the third hose is arranged in the two protecting shells (3).

8. A CPH oil circuit rotary distributor device according to claim 1, further comprising a housing, said housing being connectable to said machine tool, said housing having a plurality of first ports, each of said first ports having one end connectable to a hydraulic oil supply unit via a pipeline and the other end connected to one of said first joints (21) via a pipeline.

9. A CPH oil circuit rotary distributor device according to claim 1, characterized in that it further comprises a connecting mechanism (4), said connecting mechanism (4) comprises a first connecting member (41) and a second connecting member (42) which are rotatably connected, said first connecting member (41) is rotatably connected to one of said two protective housings (3), and said second connecting member (42) is fixedly connected to the other of said two protective housings (3).

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