CN112441475B

CN112441475B - Automatic winding and unwinding devices of many oil circuits hydraulic pressure pipeline

Info

Publication number: CN112441475B
Application number: CN201910794122.5A
Authority: CN
Inventors: 楚飞; 李显义; 齐建雄; 雷宇; 高瀚; 赵春晖; 程腾飞; 王洋绅; 王博
Original assignee: China National Petroleum Corp; CNPC Engineering Technology R&D Co Ltd; Beijing Petroleum Machinery Co Ltd
Current assignee: China National Petroleum Corp; CNPC Engineering Technology R&D Co Ltd; Beijing Petroleum Machinery Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2023-02-07
Anticipated expiration: 2039-08-27
Also published as: CN112441475A

Abstract

The invention discloses an automatic winding and unwinding device for a multi-oil-path hydraulic pipeline, which comprises a winch (1), a rotary head (2) and a support (4), wherein the winch (1) comprises a plurality of annular hydraulic pipeline winding areas, the rotary head (2) is provided with a plurality of static joints (214) and a plurality of follow-up joints (204), the support (4) can support the winch (1), when the winch (1) rotates, the static joints (214) are static relative to the support (4), and the follow-up joints (204) rotate synchronously along with the winch (1). The automatic retracting and releasing device for the multi-oil-path hydraulic pipeline provides a set of hydraulic oil conveying pipeline which is convenient to operate, safe and reliable for multi-oil-path hydraulic execution equipment moving in the working process, and the length of the hydraulic pipeline can be conveniently controlled so as to meet the working requirements of the multi-oil-path hydraulic execution equipment. Meanwhile, the device has the advantages of small volume, convenient maintenance, low cost, safety, reliability and the like.

Description

Automatic winding and unwinding devices of many oil circuits hydraulic pressure pipeline

Technical Field

The invention relates to an automatic winding and unwinding device for a multi-oil-path hydraulic pipeline.

Background

In industrial production, some hydraulic equipment is not provided with a hydraulic source or the working environment is not allowed to be provided with the hydraulic source, a hydraulic pipeline is required to be connected with the hydraulic source, the hydraulic station is far away from an actuating mechanism under the general condition of environmental limitation, in addition, the movement range of the actuating mechanism is large, and the hydraulic pipeline is required to be capable of extending and shortening along with the work. A drum device is generally adopted to complete retraction of a hydraulic pipeline, and the basic principle is as follows: winch one end is connected with rotary joint and realizes the sound conversion of hydraulic pressure oil circuit, and drive arrangement is installed to the other end, drives the capstan winch rotation, and hydraulic pressure pipeline twines on the carousel in the middle of.

The prior art only solves the problem of retraction of a single hydraulic pipeline. However, normally working hydraulic equipment generally needs an oil inlet path, an oil return path and even an oil drainage path, and even more, the number of the oil inlet paths, the oil return path and even the oil drainage paths is as large as 4 to 5, and a plurality of existing devices are used for collecting and releasing hydraulic pipelines, so that not only is the occupied space large, but also the synchronism of a plurality of equipment is difficult to control, the pipelines are easy to intertwine and drag, and a lot of extra work is brought to operation and construction; once the hydraulic pipeline is broken, the personal injury consequences of the high-pressure hydraulic oil to constructors cannot be imagined, and meanwhile, the environmental problem caused by leakage of the hydraulic oil cannot be ignored. The problem that a plurality of oil paths are integrated on the same winch is not solved in the prior art, and the problems that the axial installation size is too large, the coaxial processing is difficult, the replacement cost is high, the radial load of a driving motor is too large, and the type selection of a multi-oil-path rotary driving motor is too large caused by how to realize multi-oil-path integration are solved.

Disclosure of Invention

In order to realize the folding and unfolding of a plurality of oil paths, the invention provides an automatic folding and unfolding device for a multi-oil-path hydraulic pipeline, which provides a set of hydraulic oil conveying pipelines with convenient operation, safety and reliability for multi-oil-path hydraulic execution equipment moving in the working process, and can conveniently control the length of the hydraulic pipeline so as to meet the working requirements of the multi-oil-path hydraulic execution equipment. Meanwhile, the device has the advantages of small volume, convenient maintenance, low cost, safety, reliability and the like.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an automatic winding and unwinding devices of many oil circuit hydraulic pressure pipeline, includes capstan winch, revolving head and support, and the capstan winch contains a plurality of annular hydraulic pressure pipelines and coils the region, a plurality of hydraulic pressure pipelines coil regional axis direction along the capstan winch and arrange in proper order, are equipped with a plurality of static joints and a plurality of follow-up joint on the revolving head, and static joint and follow-up joint communicate at the inside one-to-one of revolving head, and the support can support the capstan winch, and when the capstan winch rotation, static joint is static for the support, and follow-up joint is along with capstan winch synchronous rotation.

The winch comprises an inner barrel, a plurality of punched outer radial plates are fixed outside the inner barrel and are of an annular structure, the plurality of punched outer radial plates are arranged at intervals along the axis direction of the inner barrel, one hydraulic pipeline coiling area is formed between every two adjacent punched outer radial plates, a plurality of pipeline holes are formed in the barrel wall of the inner barrel, and the pipeline holes correspond to the hydraulic pipeline coiling areas one to one.

The edge of the stamping outer radials is provided with an annular outer frame, two stamping inner radials are fixed in the inner barrel, the stamping inner radials are of an annular structure, and the two stamping inner radials are arranged at intervals along the axial direction of the inner barrel.

The rotor head contains the moving axis and the quiet ring that the endotheca was established, and the axis of capstan winch, the axis of moving axis and the axis coincidence of quiet ring, the surface of moving axis contain along the cup joint section and the grafting section that the axial set gradually, and outside the cup joint section of moving axis was located to the quiet ring cover, static joint was fixed in outside the quiet ring, and the follow-up connects outside being fixed in the grafting section of moving axis.

The movable shaft is in clearance fit with the stationary ring, a plurality of axial oil ducts are arranged in the movable shaft at intervals along the circumferential direction of the movable shaft, the axial oil ducts are communicated with the follow-up joints in a one-to-one correspondence mode, and blind plugs are arranged at the end portions of the axial oil ducts.

The inner surface of the static ring or the outer surface of the movable shaft is provided with a plurality of annular oil grooves, a plurality of outer communication holes are arranged in the side wall of the static ring, a plurality of inner connection through holes are arranged in the side wall of the movable shaft, and the axial oil ducts are communicated with the static connectors in a one-to-one correspondence mode sequentially through the inner connection through holes, the annular oil grooves and the outer communication holes.

The swivel head is located the one end of capstan winch, the section of cup jointing is located the outside of moving axis, the grafting section is located the inboard of moving axis, and the outer end of moving axis loops through end cover flange, roller self-aligning bearing and flange cover and leg joint, and the inner of moving axis is connected fixedly through screw and capstan winch.

Be equipped with rotatory glary circle between two adjacent annular oil grooves, the cover is equipped with first bearing between moving axis and the quiet ring, is equipped with the dust ring between the one end of quiet ring and the end cover flange, is equipped with the dust ring between the other end of quiet ring and the moving axis.

The automatic winding and unwinding device for the multi-oil-way hydraulic pipeline further comprises a driving mechanism, the driving mechanism can drive the winch to rotate, the driving mechanism comprises a hydraulic motor and a speed reducer, the hydraulic motor and the speed reducer are connected in sequence, the hydraulic motor is connected and fixed with the support, and the speed reducer is connected with the winch.

Be equipped with connecting axle and flange between hydraulic motor and the reduction gear, the reduction gear contains inner circle and outer lane, outside hydraulic motor's output shaft was all located to connecting axle and flange cover, in flange was located to the pot head of connecting axle, the cover was equipped with the second bearing between connecting axle and the flange, connecting axle and hydraulic motor sharing bolt were fixed with the leg joint, hydraulic motor's output shaft and the inner circle of reduction gear are connected fixedly, the outer lane of reduction gear and flange are connected fixedly with the capstan winch.

The invention has the beneficial effects that: the automatic retracting and releasing device for the multi-oil-path hydraulic pipeline provides a set of hydraulic oil conveying pipeline which is convenient to operate, safe and reliable for multi-oil-path hydraulic execution equipment moving in the working process, and the length of the hydraulic pipeline can be conveniently controlled so as to meet the working requirements of the multi-oil-path hydraulic execution equipment. Meanwhile, the device has the advantages of small volume, convenient maintenance, low cost, safety, reliability and the like.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic perspective view of an automatic retraction device for a multi-oil-path hydraulic pipeline according to the present invention.

Fig. 2 is a sectional view of the automatic retraction device for a multi-oil hydraulic line according to the present invention.

FIG. 3 is a schematic view of the winch.

Fig. 4 is a cross-sectional view of the swivel head.

Fig. 5 is a sectional view of a portion of the drive mechanism.

Fig. 6 is a perspective view of the drive mechanism.

1. A winch; 2. a turret head; 3. a first bearing; 4. a support; 5. a roller self-aligning bearing; 6. a flange cover; 7. a hydraulic motor; 8. a connecting shaft; 9. a connecting flange; 10. a speed reducer; 11. a hydraulic output line; 12. a hydraulic input line; 13. a control valve group; 14. a ground bolt; 15. a control handle; 16. a quick-connect interface; 17. a quick connector; 18. a second bearing;

101. an outer frame; 102. stamping an outer spoke plate; 103. stamping an inner spoke plate; 104. an inner barrel; 105. a line hole;

201. a stationary ring; 202. an external communication hole; 203. a moving shaft; 204. a follow-up joint; 205. blind plugging; 206. a screw; 207. an end cap flange; 208. a bolt; 209. rotating the Glare ring; 210. a dust ring; 211. an anti-rotation baffle; 212. an axial oil passage; 213. an annular oil groove; 214. a stationary joint; 215. interconnecting the through holes.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The automatic winding and unwinding device for the multi-oil-path hydraulic pipelines comprises a winch 1, a rotary head 2 and a support 4, wherein the winch 1 comprises a plurality of annular hydraulic pipeline winding areas, the plurality of hydraulic pipeline winding areas are sequentially arranged along the axis direction of the winch 1, the rotary head 2 is provided with a plurality of static joints 214 and a plurality of follow-up joints 204, the static joints 214 and the follow-up joints 204 are communicated in the rotary head 2 in a one-to-one correspondence mode, the support 4 can support the winch 1, when the winch 1 rotates, the static joints 214 can be static relative to the support 4, and the follow-up joints 204 can synchronously rotate along with the winch 1, as shown in fig. 1 and 2.

In the present embodiment, the capstan 1 rotates on its own axis means that the capstan 1 rotates about the axis of the capstan 1. The stationary joint 214 is stationary relative to the support 4 means that the stationary joint 214 neither moves nor rotates relative to the support 4. The meaning that the follower joint 204 rotates synchronously with the winch 1 is that when the winch 1 rotates on its own axis, the follower joint 204 rotates simultaneously about the axis of the winch 1, and the angular velocity of the follower joint 204 is the same as the angular velocity of the winch 1. The number of the hydraulic pipeline coiling areas is the same as that of the follow-up joints 204, and the hydraulic pipeline coiling areas correspond to the follow-up joints one by one.

In this embodiment, the winch 1 is an assembly welding member, the winch 1 includes an inner barrel 104, a plurality of punched outer webs 102 are fixed outside the inner barrel 104, the punched outer webs 102 are in a ring structure, the plurality of punched outer webs 102 are uniformly arranged at intervals along an axial direction of the inner barrel 104, one hydraulic pipeline winding region is formed between two adjacent punched outer webs 102, a plurality of pipeline holes 105 are formed in a barrel wall of the inner barrel 104, and the pipeline holes 105 correspond to the hydraulic pipeline winding regions one to one, as shown in fig. 3.

In this embodiment, an annular outer frame 101 is disposed at the outer edge of the stamped outer web 102, two stamped inner webs 103 are fixed in the inner barrel 104, the stamped inner webs 103 are in an annular structure, and the two stamped inner webs 103 are arranged at intervals along the axial direction of the inner barrel 104. The provision of two stamped inner webs 103 may shorten the axial length of the device as a whole. The pipe hole 105 facilitates the pipe passing through the inner tub to be wound around the hydraulic pipe winding area outside the inner tub, and the pipe hole 105 is provided with a support plate at a position to reduce wear of the pipe, as shown in fig. 3.

Specifically, as shown in fig. 1 and 2, 5 punched outer spokes 102 are fixed outside the inner barrel 104, the winch 1 includes 4 annular hydraulic pipeline winding regions, 1 group of hydraulic output pipelines 11 are respectively wound in the 4 hydraulic pipeline winding regions, the winch 1 includes 4 groups of hydraulic output pipelines 11, and one end of each hydraulic output pipeline 11 passes through the pipeline hole 105 and is connected with the outer end of the follower joint 204 in a one-to-one correspondence manner. The turret head 2 is provided with 4

stationary joints

214 and 4 following joints 204, and the stationary joints 214 and the following joints 204 are all angle joints.

In this embodiment, the turret head 2 includes a movable shaft 203 and a stationary ring 201 sleeved inside and outside, the axis of the winch 1, the axis of the movable shaft 203, and the axis of the stationary ring 201 are overlapped, and the outer surface of the movable shaft 203 includes a sleeved section and an inserted section sequentially arranged along the axial direction, as shown in fig. 4, the sleeved section is located on the left side of the movable shaft 203, and the inserted section is located on the right side of the movable shaft 203. The stationary ring 201 is sleeved outside the sleeved section of the moving shaft 203, the stationary joint 214 is fixed outside the stationary ring 201, and the follower joint 204 is fixed outside the inserted section of the moving shaft 203.

Specifically, 4 stationary joints 214 are arranged at regular intervals along the axis and the circumferential direction of the turret head 2, and the stationary joints 214 are located outside the turret head 2. The 4 follow-up joints 204 are uniformly arranged at intervals along the circumferential direction of the rotary head 2, and the follow-up joints 204 are positioned on the inner side of the rotary head 2. The bracket 4 is provided with a plurality of quick-connect connectors 17, for example, the bracket 4 is provided with 4 quick-connect connectors 17, and the outer ends of the static connectors 214 are correspondingly connected with the quick-connect connectors 17 one by one through the hydraulic input pipelines 12, as shown in fig. 2.

In the present embodiment, the moving shaft 203 is in clearance fit with the stationary ring 201, and when the winch 1 rotates, the stationary ring 201 can be stationary relative to the bracket 4, and the moving shaft 203 can rotate synchronously with the winch 1, that is, the moving shaft 203 can rotate relative to the stationary ring 201. The moving shaft 203 contains a plurality of axial oil channels 212, and the plurality of axial oil channels 212 are arranged at intervals along the circumferential direction of the moving shaft 203, for example, the moving shaft 203 contains 4 axial oil channels 212. The axial oil passages 212 are communicated with the inner ends of the follow-up joints 204 in a one-to-one correspondence manner, and blind plugs 205 are arranged at the end parts of the axial oil passages 212 to seal the oil passages.

In this embodiment, a plurality of annular oil grooves 213 are formed in the inner surface of the stationary ring 201 or the outer surface of the movable shaft 203, a plurality of outer communication holes 202 are formed in the sidewall of the stationary ring 201, a plurality of inner communication holes 215 are formed in the sidewall of the movable shaft 203, and the axial oil passages 212 are in one-to-one correspondence communication with the inner ends of the stationary joints 214 through the inner communication holes 215, the annular oil grooves 213, and the outer communication holes 202 in sequence.

Specifically, as shown in fig. 4, the inner surface of the stationary ring 201 is provided with 4 annular oil grooves 213, the side wall of the stationary ring 201 is provided with 4 outer communication holes 202, the side wall of the moving shaft 203 is provided with 4 inner communication holes 215, and the inner end of the stationary joint 214 is communicated with the inner end of the follower joint 204 in a one-to-one correspondence manner through the outer communication holes 202, the annular oil grooves 213, the inner communication holes 215, and the axial oil passage 212 in sequence. Thus, when the movable shaft 203 rotates relative to the stationary ring 201, the stationary joint 214 and the follower joint 204 are always in one-to-one correspondence with each other inside the turret head 2.

In this embodiment, the turret 2 is located in the left end of the winch 1, as shown in fig. 2, the socket joint section is located outside the moving shaft 203, the plug-in section is located inside the moving shaft 203, the left end of the moving shaft 203 is connected to the bracket 4 sequentially through the end cover flange 207, the roller self-aligning bearing 5 and the flange cover 6, the left end of the moving shaft 203 is connected and fixed to the end cover flange 207 through the bolt 208, it is ensured that the sleeve between the moving shaft 203 and the stationary ring 201 freely rotates, and the bearing and the end cover flange are matched with each other to achieve axial positioning. The flange cover 6 is fixedly connected with the bracket 4 through screws, and the right end of the moving shaft 203 is fixedly connected with the left punched inner web 103 of the winch 1 through a screw 206, as shown in fig. 4.

In this embodiment, a rotary Gray ring 209 is provided between two adjacent annular oil grooves 213 to prevent oil from mixing with each other. The first bearing 3 is sleeved between the moving shaft 203 and the static ring 201, the dust ring 210 is arranged between the left end of the static ring 201 and the end cover flange 207, and the dust ring 210 is arranged between the right end of the static ring 201 and the moving shaft 203. The stationary ring 201 is fixedly connected with the bracket 4 through an anti-rotation baffle 211.

In this embodiment, the automatic retraction device for a multi-oil hydraulic pipeline further includes a driving mechanism, the driving mechanism can drive the winch 1 to rotate, the driving mechanism is located on the right side of the winch 1, as shown in fig. 2, the driving mechanism includes a hydraulic motor 7 and a speed reducer 10 which are connected in sequence, the hydraulic motor 7 is connected and fixed with the bracket 4, and the speed reducer 10 is connected with the winch 1, as shown in fig. 5 and 6.

In this embodiment, a connection shaft 8 and a connection flange 9 are disposed between the hydraulic motor 7 and the speed reducer 10, the speed reducer 10 includes an inner ring and an outer ring, the connection shaft 8 and the connection flange 9 are both sleeved outside an output shaft of the hydraulic motor 7, a left end of the connection shaft 8 is sleeved inside a right end of the connection flange 9, a second bearing 18 is sleeved between the connection shaft 8 and the connection flange 9, the connection shaft 8 and the hydraulic motor 7 share two bolts and are connected and fixed to the bracket 4, an output shaft of the hydraulic motor 7 is connected and fixed to an inner ring of the speed reducer 10, and an outer ring of the speed reducer 10 and the connection flange 9 share two bolts and are connected and fixed to a stamped inner spoke 103 on the right side of the winch 1, as shown in fig. 2.

The driving mechanism has supporting and rotation transmitting functions. The supporting function is achieved by the connecting shaft 8, the connecting flange 9 and the second bearing 18. The connecting shaft 8, the connecting flange 9 and the second bearing 18 take up the axial and radial forces of the winch 1, so that it can only rotate in the circumferential direction. Therefore, the hydraulic motor is guaranteed to bear only the reaction torque but not the bending moment when working, the working load of the hydraulic motor is greatly reduced, and the service life of the hydraulic motor is greatly prolonged. The rotation transmitting action is achieved by the hydraulic motor 7 and the speed reducer 10. The hydraulic motor 7 can rotate the winch 1 through the speed reducer 10. The speed reducer is selected to effectively reduce the output rotating speed of the motor and increase the output torque, so that the model selection of the motor can be as small as possible, and the axial length is reduced.

The hydraulic motor 7 is controlled by a control valve group 13, and the forward transmission, the reverse rotation and the floating state of the motor are switched by moving a control handle 15. The control valve group is provided with a quick-plugging port 16 which is convenient to be connected with a driving hydraulic source. In addition, the bottom of the support 4 is designed with a grounding bolt 14 to facilitate the attachment of the device to the ground or to a mobile device.

The working process of the automatic retraction device for multi-oil-path hydraulic pipelines is described below.

As shown in fig. 2, the upper portions of the left and right ends of the bracket 4 support the turret head 2 and the connecting shaft 8, respectively, so that the winch 1 can rotate about its axis. The stationary ring 201 is stationary relative to the support 4 by means of an anti-rotation stop 211. The quick-connect connector 17 is fixed on the bracket 4 and is connected with a static connector 214 on the static ring 201 through a hydraulic input pipeline 12. The movable shaft 203 rotates along with the winch 1, and the follow-up joint 204 on the movable shaft 203 rotates along with the movable shaft 203 and is connected with the hydraulic output pipeline 11. The hydraulic output line 11 passes through the corresponding line hole 105 and is wound on the outer wall of the inner barrel 104 on the winch 1. The hydraulic output pipeline 11 is retracted along with the rotation of the winch 1, and the hydraulic pressure is transmitted to the actuating mechanism through the hydraulic output pipeline 11.

The automatic multi-oil-path hydraulic pipeline winding and unwinding device needs to be fixed on a base before use, and the base can be a ground or a movable platform such as a towing pry. The grounding bolt 14 is used to connect to the base to allow for a secure mounting. The hydraulic pipelines of the working hydraulic source are respectively connected with 4 quick-connection connectors 17 with the numbers of 1-4, and the corresponding hydraulic output pipelines 11 are connected with the hydraulic oil inlet and outlet of a hydraulic execution structure (hydraulic equipment). The quick-connect interface 16 is connected to a source of drive hydraulic pressure, i.e., completes the installation and connection of the device.

1. Discharge operation of hydraulic outlet line 11

When the hydraulic equipment moves in the working process and requires that the hydraulic pipeline extends along with the movement of the equipment, an operator operates the control handle 15, the driving oil way drives the winch 1 to rotate reversely, the hydraulic output pipeline 11 of which the part is wound on the winch is discharged, and the length of the hydraulic output pipeline 11 between the hydraulic equipment and the winch is increased.

2. Retraction of the hydraulic outlet line 11

When the hydraulic pipeline needs to be recovered, an operator operates the control handle 15 to drive the flow direction of hydraulic oil in the oil path to change, so that the winch 1 is driven to rotate forwards, redundant hydraulic output pipelines 11 are wound on the winch 1, and the length of the hydraulic output pipelines 11 between the hydraulic equipment and the winch is shortened.

It should be understood that the above description is only exemplary of the invention, and is not intended to limit the scope of the invention, so that the replacement of equivalent elements or equivalent changes and modifications made in the present invention should be included within the scope of the present invention. In addition, the technical features and the technical schemes, and the technical schemes can be freely combined and used.

Claims

1. The automatic winding and unwinding device for the multi-oil-path hydraulic pipelines is characterized by comprising a winch (1), a rotary head (2) and a support (4), wherein the winch (1) comprises a plurality of annular hydraulic pipeline winding areas, the plurality of hydraulic pipeline winding areas are sequentially arranged along the axis direction of the winch (1), the rotary head (2) is provided with a plurality of static joints (214) and a plurality of follow-up joints (204), the static joints (214) and the follow-up joints (204) are communicated in the rotary head (2) in a one-to-one correspondence manner, the support (4) can support the winch (1), when the winch (1) rotates automatically, the static joints (214) are static relative to the support (4), and the follow-up joints (204) rotate synchronously along with the winch (1);

the winch (1) comprises an inner barrel (104), two stamping inner radial plates (103) are fixed in the inner barrel (104), the stamping inner radial plates (103) are of an annular structure, and the two stamping inner radial plates (103) are arranged at intervals along the axial direction of the inner barrel (104);

the rotary head (2) comprises a movable shaft (203) and a static ring (201) which are sleeved inside and outside; the rotary head (2) is positioned in the left end of the winch (1), the left end of the moving shaft (203) is connected with the bracket (4) sequentially through the end cover flange (207), the roller self-aligning bearing (5) and the flange cover (6), and the right end of the moving shaft (203) is fixedly connected with the stamping inner radial plate (103) on the left side of the winch (1) through the screw (206); the static ring (201) is fixedly connected with the bracket (4) through an anti-rotation baffle (211);

the automatic winding and unwinding device for the multi-oil-way hydraulic pipeline further comprises a driving mechanism, the driving mechanism can drive the winch (1) to rotate, and the driving mechanism comprises a hydraulic motor (7) and a speed reducer (10) which are sequentially connected;

a connecting shaft (8) and a connecting flange (9) are arranged between the hydraulic motor (7) and the speed reducer (10), the speed reducer (10) comprises an inner ring and an outer ring, the connecting shaft (8) and the connecting flange (9) are both sleeved outside an output shaft of the hydraulic motor (7), the left end of the connecting shaft (8) is sleeved in the right end of the connecting flange (9), a second bearing (18) is sleeved between the connecting shaft (8) and the connecting flange (9), the connecting shaft (8) and the hydraulic motor (7) are fixedly connected with the support (4) by using a common bolt, the output shaft of the hydraulic motor (7) is fixedly connected with the inner ring of the speed reducer (10), and the outer ring of the speed reducer (10) and the connecting flange (9) are both fixedly connected with a stamping inner radial plate (103) on the right side of the winch (1); the punched inner spoke plate (103) on the right side of the winch (1) is positioned between the speed reducer (10) and the connecting flange (9);

the axis of the winch (1), the axis of the moving shaft (203) and the axis of the static ring (201) are overlapped, the outer surface of the moving shaft (203) comprises a sleeving section and an inserting section which are sequentially arranged along the axial direction, the static ring (201) is sleeved outside the sleeving section of the moving shaft (203), the static joint (214) is fixed outside the static ring (201), and the follow-up joint (204) is fixed outside the inserting section of the moving shaft (203);

the movable shaft (203) is in clearance fit with the static ring (201), the movable shaft (203) is internally provided with a plurality of axial oil passages (212), the plurality of axial oil passages (212) are arranged at intervals along the circumferential direction of the movable shaft (203), the axial oil passages (212) are communicated with the follow-up joints (204) in a one-to-one correspondence manner, and blind plugs (205) are arranged at the end parts of the axial oil passages (212);

the inner surface of the static ring (201) or the outer surface of the moving shaft (203) is provided with a plurality of annular oil grooves (213), the side wall of the static ring (201) is internally provided with a plurality of outer communicating holes (202), the side wall of the moving shaft (203) is internally provided with a plurality of inner connecting through holes (215), and the axial oil passages (212) are communicated with the static joint (214) in a one-to-one correspondence mode through the inner connecting through holes (215), the annular oil grooves (213) and the outer communicating holes (202);

be equipped with rotatory glary circle (209) between two adjacent annular oil grooves (213), the cover is equipped with first bearing (3) between moving axis (203) and quiet ring (201), is equipped with dust ring (210) between the one end of quiet ring (201) and end cover flange (207), is equipped with dust ring (210) between the other end of quiet ring (201) and moving axis (203).

2. The automatic winding and unwinding device for the multi-oil-circuit hydraulic pipelines according to claim 1 is characterized in that a plurality of stamped outer radial plates (102) are fixed outside the inner barrel (104), the stamped outer radial plates (102) are of a ring structure, the stamped outer radial plates (102) are arranged at intervals along the axial direction of the inner barrel (104), a hydraulic pipeline winding region is formed between every two adjacent stamped outer radial plates (102), a plurality of pipeline holes (105) are formed in the barrel wall of the inner barrel (104), and the pipeline holes (105) correspond to the hydraulic pipeline winding regions one by one.