阅读说明：本技术 一种高压水自动旋转伸缩可调式管内张紧执行机构 (Intraductal tensioning actuating mechanism with adjustable water under high pressure autogiration is flexible ) 是由 迟艳芬 冯涛 谢明智 于文明 张军见 孔惠敏 张晓红 于 2019-09-27 设计创作，主要内容包括：一种高压水自动旋转伸缩可调式管内张紧执行机构,所述的机架由固定板及四根圆柱导杆螺杆紧固组成；张紧机构由固定滑块、被动滑块、主动滑块、连杆机构相互铰接组成；液压马达驱动总成由液压站、主推油缸、液压马达、行星减速机组成；伸缩执行机构由带量程的液压缸、油缸杆导向机构、油缸杆、高压喷嘴、弹簧可调机构、固定滚轮保护机构、笼套组成；主推油缸固定端固定于机架的固定板上；固定滑块固定于机架的另一端,液压马达驱动总成穿过固定滑块；液压马达通过行星减速机带动旋转伸缩执行机构整体旋转；带量程的液压缸带动高压喷嘴伸缩,适应切割钢管；优点是：施工方便,适用于不规则的钢管切割,结构简单,操作安全,使用寿命长等。(A high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism is characterized in that a rack is formed by fastening a fixing plate and four cylindrical guide rod screws; the tensioning mechanism is formed by mutually hinging a fixed slide block, a driven slide block, a driving slide block and a connecting rod mechanism; the hydraulic motor driving assembly consists of a hydraulic station, a main push oil cylinder, a hydraulic motor and a planetary reducer; the telescopic actuating mechanism consists of a hydraulic cylinder with measuring range, an oil cylinder rod guide mechanism, an oil cylinder rod, a high-pressure nozzle, a spring adjustable mechanism, a fixed roller protection mechanism and a cage sleeve; the fixed end of the main push oil cylinder is fixed on a fixed plate of the frame; the fixed sliding block is fixed at the other end of the rack, and the hydraulic motor driving assembly penetrates through the fixed sliding block; the hydraulic motor drives the rotary telescopic actuating mechanism to integrally rotate through the planetary reducer; the hydraulic cylinder with the measuring range drives the high-pressure nozzle to stretch and contract, so that the cutting device is suitable for cutting steel pipes; the advantages are that: the steel pipe cutting machine is convenient to construct, suitable for irregular steel pipe cutting, simple in structure, safe to operate, long in service life and the like.)

1. The utility model provides a intraductal tensioning actuating mechanism with adjustable high pressure water autogiration is flexible, includes frame (2), straining device, hydraulic motor drive assembly (6) and flexible actuating mechanism (8), its characterized in that: the frame (2) is formed by fastening a fixed plate (17) and four cylindrical guide rod screws; the tensioning mechanism is formed by mutually hinging a fixed slide block (7), a driven slide block (4), a driving slide block (3) and a connecting rod mechanism (5); the hydraulic motor driving assembly (6) consists of a hydraulic station, a main push oil cylinder (1), a hydraulic motor and a planetary reducer; the telescopic actuating mechanism (8) consists of a hydraulic cylinder (10) with a measuring range, an oil cylinder rod guide mechanism (11), an oil cylinder rod (18), a high-pressure nozzle (14), a spring adjustable mechanism (12), a fixed roller protection mechanism (13) and a cage sleeve (15); the fixed end of the main push oil cylinder (1) is fixed on a fixed plate (17) of the frame (2), and the piston end is fixedly connected with the driving slide block (3); the fixed sliding block (7) is fixed at the other end of the rack (2), and the hydraulic motor driving assembly (6) penetrates through the fixed sliding block (7); the hydraulic motor drives the rotary telescopic actuating mechanism (8) to integrally rotate through the planetary reducer; the hydraulic cylinder (10) with the measuring range drives the high-pressure nozzle (14) to stretch and retract, so that the cutting device is suitable for cutting the steel pipe (9).

2. The high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism of claim 1, characterized in that: the hydraulic station respectively provides power for the main push oil cylinder (1), the hydraulic motor driving assembly (6) and the hydraulic cylinder (10) with the measuring range.

3. The high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism of claim 1, characterized in that: the connecting rod mechanism (5) comprises ten connecting rods (16) which are respectively connected with the driving sliding block (3), the driven sliding block (4) and the fixed sliding block (7) to form two octagonal structures; the two octagonal structures are hinged with each other into a whole.

4. The high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism of claim 1, characterized in that: the oil cylinder rod guide mechanism (11) is used for fixing the oil cylinder rod (18) and the high-pressure nozzle (14).

5. The high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism of claim 1, characterized in that: the rear end of the high-pressure nozzle (14) is provided with a spring adjustable mechanism (12), the spring adjustable mechanism (12) consists of four springs and guide posts, and the high-pressure nozzle (14) stretches back and forth along the inner wall of the steel pipe (9) to perform fine adjustment.

6. The high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism of claim 1, characterized in that: the fixed roller protection mechanism (13) is arranged at the front end of the high-pressure nozzle (14).

7. The high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism of claim 1, characterized in that: a cage sleeve (15) is fixed on the outer side of the telescopic actuating mechanism (8).

Technical Field

The invention belongs to the field of mechanical equipment, and particularly relates to an automatic high-pressure water rotating, telescopic and adjustable in-pipe tensioning actuating mechanism.

Background

The underwater cutting of a foundation pile pipe, a water-resisting sleeve and a Christmas tree at the lower part of an offshore fixed platform is difficult for offshore structure dismantling construction, the cutting position of a steel pipe is 4 meters below a mud surface, the cutting depth is deep, the inner diameter of the pipe is oval, a welding line is formed, barriers such as water, mud and the like exist on the inner wall, and the cutting device is difficult to be positioned to the corresponding cutting position, so that the development of the adjustable telescopic special cutting device is necessary.

Disclosure of Invention

The invention aims to provide an automatic high-pressure water rotating, telescopic and adjustable internal pipe tensioning actuating mechanism which avoids the defects of the prior art.

The technical scheme of the invention is as follows: a high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism comprises a rack, a tensioning mechanism, a hydraulic motor driving assembly and a telescopic actuating mechanism, wherein the rack is formed by fastening a fixing plate and four cylindrical guide rod screws; the tensioning mechanism is formed by mutually hinging a fixed slide block, a driven slide block, a driving slide block and a connecting rod mechanism; the hydraulic motor driving assembly consists of a hydraulic station, a main push oil cylinder, a hydraulic motor and a planetary reducer; the telescopic actuating mechanism consists of a hydraulic cylinder with measuring range, an oil cylinder rod guide mechanism, an oil cylinder rod, a high-pressure nozzle, a spring adjustable mechanism, a fixed roller protection mechanism and a cage sleeve; the fixed end of the main push oil cylinder is fixed on a fixed plate of the frame, and the piston end is fixedly connected with the driving slide block; the fixed sliding block is fixed at the other end of the rack, and the hydraulic motor driving assembly penetrates through the fixed sliding block; the hydraulic motor drives the rotary telescopic actuating mechanism to integrally rotate through the planetary reducer; the hydraulic cylinder with the measuring range drives the high-pressure nozzle to stretch and retract, so that the device is suitable for cutting steel pipes.

The hydraulic station respectively provides power for the main push oil cylinder, the hydraulic motor driving assembly and the hydraulic cylinder with the measuring range.

The connecting rod mechanism comprises ten connecting rods which are respectively connected with the driving slide block, the driven slide block and the fixed slide block to form two octagonal structures; the two octagonal structures are hinged with each other into a whole.

The oil cylinder rod guide mechanism fixes the oil cylinder rod and the high-pressure nozzle.

The rear end of the high-pressure nozzle is provided with a spring adjustable mechanism, and the spring adjustable mechanism consists of four springs and guide posts, so that the high-pressure nozzle can stretch back and forth along the inner wall of the steel pipe for fine adjustment.

The fixed roller protection mechanism is arranged at the front end of the high-pressure nozzle.

And a cage sleeve is fixed on the outer side of the telescopic actuating mechanism.

Compared with the prior art, the invention has the advantages that: the invention adopts the high-pressure water abrasive material jet cutting technology to cut the steel pipe, the tensioning mechanism is a parallelogram link mechanism, the cutting nozzle is fixed on the rotary telescopic actuating mechanism, the construction is convenient, the invention is suitable for irregular steel pipe cutting, the structure is simple, the operation is safe, the applicability is strong, the service life is long, and the like.

Drawings

Fig. 1 is a schematic view of the structure of the tensioning mechanism of the present invention.

Fig. 2 is a schematic structural diagram of a rotary telescopic actuator of the invention.

In the figure: 1. a main push oil cylinder; 2. a frame; 3. an active slider; 4. a passive slider; 5. a parallelogram linkage mechanism; 6. a hydraulic motor drive assembly; 7. fixing the sliding block; 8. a telescopic actuator; 9. a steel pipe; 10. a stroke-measuring oil cylinder; 11. a cylinder rod guide mechanism; 12. a spring adjustable mechanism; 13. fixing a roller protection mechanism; 14. a high pressure nozzle; 15. a cage sleeve; 16. a connecting rod; 17. a fixing plate; 18. a cylinder rod.

Detailed Description

The technical scheme of the invention is completely and clearly described below by combining the attached drawings of the invention.

A high-pressure water automatic rotation telescopic adjustable in-pipe tensioning actuating mechanism comprises a rack 2, a tensioning mechanism, a hydraulic motor driving assembly 6 and a telescopic actuating mechanism 8, wherein the rack 2 is formed by fastening a fixing plate 17 and four cylindrical guide rod screws; the tensioning mechanism is formed by mutually hinging a fixed slide block 7, a driven slide block 4, a driving slide block 3 and a connecting rod mechanism 5; the hydraulic motor driving assembly 6 consists of a hydraulic station, a main push oil cylinder 1, a hydraulic motor and a planetary reducer; the telescopic actuating mechanism 8 consists of a hydraulic cylinder 10 with a measuring range, an oil cylinder rod guide mechanism 11, an oil cylinder rod 18, a high-pressure nozzle 14, a spring adjustable mechanism 12, a fixed roller protection mechanism 13 and a cage sleeve 15; the fixed end of the main push oil cylinder 1 is fixed on a fixed plate 17 of the frame 2, and the piston end is fixedly connected with the driving slide block 3; the fixed sliding block 7 is fixed at the other end of the frame 2, and the hydraulic motor driving assembly 6 penetrates through the fixed sliding block 7; the hydraulic motor drives the rotary telescopic actuating mechanism 8 to integrally rotate through the planetary reducer; the hydraulic cylinder 10 with the measuring range drives the high-pressure nozzle 14 to stretch and contract, and is suitable for cutting the steel pipe 9.

The hydraulic station respectively provides power for the main push oil cylinder 1, the hydraulic motor driving assembly 6 and the hydraulic cylinder 10 with a stroke.

The connecting rod mechanism 5 comprises ten connecting rods 16 which are respectively connected with the driving slide block 3, the driven slide block 4 and the fixed slide block 7 to form two octagonal structures; the two octagonal structures are hinged with each other into a whole.

The cylinder rod guide mechanism 11 fixes the cylinder rod 18 and the high-pressure nozzle 14.

The rear end of the high-pressure nozzle 14 is provided with a spring adjustable mechanism 12, and the spring adjustable mechanism 12 consists of four springs and guide posts, so that the high-pressure nozzle 14 can stretch back and forth along the inner wall of the steel pipe 9 for fine adjustment.

The fixed roller protection mechanism 13 is arranged at the front end of the high-pressure nozzle 14.

And a cage sleeve 15 is fixed on the outer side of the telescopic actuating mechanism 8.

The hydraulic station provides power for the main push oil cylinder 1, the main push oil cylinder 1 stretches back and forth to drive the driving slide block 3 to slide up and down along the rack 2, so that the driven slide block 4 is driven to slide up and down, and the driving slide block 3 and the driven slide block 4 together drive the parallelogram link mechanism 5 to stretch and retract to achieve the tensioning purpose.

The hydraulic station provides power for the hydraulic motor driving assembly 6, and the hydraulic motor drives the rotary telescopic actuating mechanism 8 to integrally rotate by two-stage speed reduction to actual cutting speed through the planetary reducer.

The hydraulic station provides power for the belt stroke oil cylinder 10, and the belt stroke oil cylinder 10 drives the high-pressure nozzle 14 to stretch and contract to adapt to different diameter specifications of the cut steel pipe 9; the cylinder rod guide mechanism 11 prevents the cylinder rod 18 and the high-pressure nozzle 14 from rotating; the spring adjustable mechanism 12 consists of four springs and guide posts, and the high-pressure nozzle 14 can stretch back and forth along the inner wall of the steel pipe 9 to perform fine adjustment when touching a welding seam, a cement barrier and the like; the fixed roller protection mechanism 13 protects the high-pressure nozzle 14 from being damaged by the inner wall of the steel pipe 9 and obstacles and always keeps a 3mm cutting gap with the inner wall of the steel pipe 9; the cage 15 can integrally protect the nozzle and the telescopic actuating mechanism from being damaged by the inner wall of the steel pipe 9 and obstacles.