WO2024093039A1 - 导向旋转装置、液压卷管装置及桩工机械 - Google Patents

导向旋转装置、液压卷管装置及桩工机械 Download PDF

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Publication number
WO2024093039A1
WO2024093039A1 PCT/CN2023/074543 CN2023074543W WO2024093039A1 WO 2024093039 A1 WO2024093039 A1 WO 2024093039A1 CN 2023074543 W CN2023074543 W CN 2023074543W WO 2024093039 A1 WO2024093039 A1 WO 2024093039A1
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WO
WIPO (PCT)
Prior art keywords
frame
rotating
guide
rotation
reel
Prior art date
Application number
PCT/CN2023/074543
Other languages
English (en)
French (fr)
Inventor
杨飞
于帅
马文宝
李岩
张世平
Original Assignee
北京三一智造科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202222918615.5U external-priority patent/CN218894127U/zh
Priority claimed from CN202222918613.6U external-priority patent/CN218894130U/zh
Priority claimed from CN202222944907.6U external-priority patent/CN218538854U/zh
Priority claimed from CN202223044866.1U external-priority patent/CN219492729U/zh
Application filed by 北京三一智造科技有限公司 filed Critical 北京三一智造科技有限公司
Publication of WO2024093039A1 publication Critical patent/WO2024093039A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44Constructional details
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices

Definitions

  • the present application relates to the technical field of engineering machinery, and in particular to a guide rotation device, a hydraulic pipe reel device and a pile driving machine.
  • the guide bar grab is a basic construction machine suitable for underground continuous wall trenching operations such as high-rise buildings and subways.
  • the guide bar grab can be slidably connected to the mast of the rotary drilling rig through a sliding frame.
  • the guide rod of the guide bar grab is slidably connected to the sliding frame.
  • the sliding frame is the lifting guide of the guide bar grab and limits the rotation of the guide bar grab relative to the mast to ensure the stability of the guide bar grab during the working process.
  • the grabbing action of the guide bar grab is mainly realized by the grab cylinder.
  • a pipe reel device is set above and below the sliding frame to reel in the oil pipe connected to the grab cylinder.
  • the grab bucket in order to meet the requirements of groove forming and groove repairing at different angles, the grab bucket is usually rotated relative to the sliding frame to adjust the grabbing direction of the guide rod grab bucket.
  • the grab bucket rotates relative to the sliding frame, the end of the oil pipe connected to the grab bucket cylinder rotates synchronously with the grab bucket cylinder and the grab bucket, and because the oil pipe is wound on the pipe reel device, and the pipe reel device is arranged on the sliding frame, the grab bucket cylinder and the pipe reel device will rotate relative to each other, resulting in the problem of the oil pipe being twisted, which is easy to damage the oil pipe in serious cases.
  • the present application provides a guide rotation device, a hydraulic pipe reel device and a pile driving machine, which are used to solve the defect of the prior art that the oil pipe is twisted when adjusting the grabbing direction of the guide rod type grab bucket.
  • the present application provides a guide rotation device, comprising: a fixed frame for connecting to a mast; a rotating frame for connecting to a grab bucket, the rotating frame being rotatably connected to the fixed frame; a first drive device, configured to drive the rotating frame to rotate relative to the fixed frame; a pipe reel device, used to retract and release an oil pipe connected to a grab bucket cylinder of the grab bucket, the pipe reel device being arranged on the rotating frame.
  • the present application provides a power rotation device, comprising: a second fixed frame connected to a mast; a rotating frame rotatably connected to the second fixed frame, the rotating frame being provided with a second mounting hole for a second guide rod portion of a guide rod type grab to pass through, the second mounting hole being configured to cooperate with the second guide rod portion of the guide rod type grab to limit the rotation of the second guide rod portion of the guide rod type grab relative to the rotating frame, the second fixed frame being provided with a second avoidance space for the second guide rod portion of the guide rod type grab to pass through; and a driving device configured to drive the rotating frame to rotate relative to the second fixed frame.
  • the present application further provides a hydraulic pipe reel device, comprising: a mounting frame, with a guide rail at the bottom; a swivel joint, comprising a first swivel body and a second swivel body, wherein the second swivel body rotates relative to the first swivel body; A connecting piece is connected to the second rotating body, and the connecting piece is slidably connected to the guide rail; and one end of the hydraulic pipe is connected to the second rotating body.
  • the present application also provides a hose reel rotation hydraulic system, comprising: a guide rod; a rotation device fixedly connected to the guide rod; a hydraulic pump; a second rotation motor capable of driving the rotation device to rotate; and a first oil circuit, with the hydraulic pump and the second rotation motor connected at both ends respectively.
  • a grab bucket assembly includes a grab bucket and a rotating device for driving the grab bucket to rotate, wherein the rotating device is the guide rotating device or the power rotating device.
  • a pile-driving machine comprises the guide rotation device, or comprises the power rotation device, or comprises the grab assembly, or comprises the hydraulic hose reel device, or comprises the hose reel rotation hydraulic system.
  • the present application provides a guide rotating device, comprising a fixed frame, a rotating frame, a first driving device and a pipe reel.
  • the fixed frame is used to be connected to the mast
  • the rotating frame is rotatably connected to the fixed frame
  • the first driving device is used to drive the rotating frame to rotate relative to the fixed frame.
  • the grab bucket is connected to the rotating frame, so that the rotating frame can drive the grab bucket to rotate, so as to adjust the grabbing direction of the grab bucket.
  • the pipe reel device is used to retract and release the oil pipe connected to the grab bucket cylinder of the grab bucket.
  • the pipe reel device is arranged on the rotating frame, and the pipe reel device can rotate with the rotating frame.
  • the grab bucket and the pipe reel device both rotate synchronously with the rotating frame, and the grab bucket and the pipe reel device are relatively fixed, which can effectively avoid the problem of the oil pipe being twisted, thereby reducing the problem of the oil pipe being damaged due to twisting, and solves the problem of the oil pipe being twisted when adjusting the grabbing direction of the guide rod grab bucket in the prior art.
  • FIG1 is a schematic diagram of the assembly structure of the guide rotating device and the grab bucket provided by the present application.
  • FIG2 is a schematic diagram of the connection structure between the pipe reel device and the second frame provided by the present application.
  • FIG3 is a schematic diagram of the arrangement position of the pipe reel device provided by the present application on the second frame;
  • FIG4 is a schematic structural diagram of an oil pipe guide frame provided by the present application.
  • FIG5 is a schematic diagram of the connection structure between the fixed frame and the rotating frame provided by the present application.
  • Fig. 6 is an enlarged view of I in Fig. 5;
  • FIG7 is a schematic diagram of the assembly structure of the power rotating device and the guide rod type grab bucket provided by the present application.
  • FIG8 is a partial cross-sectional view of the power rotating device provided by the present application.
  • FIG9 is a top view of the power rotation device provided by the present application.
  • FIG10 is a partial cross-sectional structural schematic diagram of a hydraulic tube reel device in one embodiment of the present application.
  • FIG11 is a schematic diagram of a top view of the structure of a guide rail of a hydraulic tube reel device in one embodiment of the present application;
  • FIG12 is a schematic cross-sectional view of a guide rail of a hydraulic tube reel in one embodiment of the present application.
  • FIG13 is a schematic diagram of the front view of the connecting member of the hydraulic hose reel device in one embodiment of the present application.
  • FIG14 is a schematic side view of the structure of a connecting member of a hydraulic tube reel device in one embodiment of the present application.
  • FIG15 is a schematic diagram of a top view of a connecting member of a hydraulic tube reel device in one embodiment of the present application.
  • FIG16 is a schematic diagram of the front structural view of an engineering machine in another embodiment of the present application.
  • FIG17 is a schematic diagram of a top view of the structure of the engineering machinery in the embodiment of FIG16 ;
  • FIG18 is a schematic diagram of a system provided in an embodiment of the present application.
  • FIG. 19 is a schematic diagram of a connection structure provided in an embodiment of the present application.
  • Reference numerals 1. Fixed frame; 2. First drive device; 3. Tube reel device; 4. Oil pipe; 5. Reel; 6. Oil pipe guide frame; 7. Roller; 8. Insertion space; 9. First frame; 10. Second frame; 11. Third frame; 12. Guide rod; 13. Mounting hole; 14. Avoidance space; 15. Wear-resistant key; 16. Slewing bearing; 17. Gear; 18. Drive assembly; 19. Reducer; 20. Hydraulic motor; 21. Grab bucket; 22.
  • Gear box; 23 carriage body; 24, connecting plate; 25, second driving device; 31, second fixed frame; 32, rotating frame; 33, second guide rod; 34, second mounting hole; 35, limit baffle; 36, limit block; 37, second slewing bearing; 38, second gear; 39, second driving assembly; 40, buffer block; 41, carriage body; 42, connecting plate; 43, second grab bucket; 44, second avoidance space; 200, engineering machinery; 100, hydraulic hose reel 110, mounting frame; 120, rotating drum; 130, swivel joint; 131, first swivel body; 133, second swivel body; 140, connecting member; 141, dial plate; 143, connecting rod; 1431, base; 1433, rod body; 1435, gland; 145, swivel support; 147, connecting plate; 150, guide rail; 151, steering structure; 1511, protruding structure; 1513, concave structure; 153, guide groove; 15 31.
  • the guide rotation device provided in the embodiment of the present application includes a fixed frame 1 , a rotating frame, a first driving device 2 and a pipe winding device 3 .
  • the fixed frame body 1 is used to connect with the mast.
  • the fixed frame body 1 is slidably connected with the mast through the slide body 23.
  • a guide rail for guiding the slide body 23 is provided on the mast.
  • the sliding direction of the slide body 23 relative to the mast is parallel to the axis direction of the mast and the axis direction of the guide rail.
  • a pair of oppositely arranged connecting plates 24 are provided on the fixed frame body 1.
  • One end of the connecting plate 24 is connected to the fixed frame body 1, and the other end of the connecting plate 24 and the fixed frame body 1 are connected to the slide body 23 through a pin shaft, refer to Figure 1.
  • a driving cylinder such as a hydraulic cylinder is arranged between the carriage body 23 and the mast.
  • the axial direction of the driving cylinder is parallel to the axial direction of the guide rail.
  • One end of the driving cylinder is connected to the mast, and the other end is connected to the carriage body 23.
  • the grab bucket is connected to the guide rod and is transmission-connected to the rotating frame body, so that the rotating frame body can drive the grab bucket to rotate, so as to adjust the grabbing direction of the grab bucket.
  • the grabbing action of the grab bucket is powered by the grab bucket cylinder.
  • the oil inlet and outlet of the grab bucket cylinder are connected to the oil pump and the oil tank through the oil pipe 4.
  • the above-mentioned pipe reel device 3 is used to retract and release the oil pipe 4 connected to the grab bucket cylinder of the grab bucket.
  • the pipe reel device 3 is arranged on the rotating frame so that the pipe reel device 3 can rotate with the rotating frame.
  • the grab bucket and the pipe reel device 3 rotate synchronously with the rotating frame.
  • the grab bucket and the pipe reel device 3 are relatively fixed, which can effectively avoid the problem of the oil pipe 4 being twisted, thereby reducing the oil
  • the problem of damage to the oil pipe 4 is solved, and the problem of the oil pipe 4 being twisted when adjusting the grabbing direction of the guide rod type grab bucket in the prior art is solved.
  • the hose reel device 3 includes a reel 5 and a second drive device 25.
  • the reel 5 can rotate relative to the rotating frame, and the rotation axis of the reel 5 relative to the rotating frame is perpendicular to the rotation axis of the rotating frame relative to the fixed frame 1.
  • the second drive device 25 is used to drive the reel 5 to rotate relative to the rotating frame.
  • the second drive device 25 includes a reducer 19 and a hydraulic motor 20, and the output shaft of the hydraulic motor 20 is connected to the input shaft of the reducer 19 by transmission, and the output shaft of the reducer 19 is connected to the reel 5 by transmission.
  • the grab portion 21 of the grab bucket has two symmetrically arranged grab bucket lobes, and correspondingly, two grab bucket oil cylinders are arranged, and the two grab bucket lobes are driven to move by the two grab bucket oil cylinders respectively. Therefore, in this embodiment, two reels 5 and second drive devices 25 are arranged, so that the reels 5 and second drive devices 25 correspond to the grab bucket oil cylinders one by one.
  • the two reels 5 are parallel to each other and are arranged on both sides of the rotating frame along the first direction m, and the first direction m is a direction parallel to the rotation axis of the reel 5, refer to FIG3 .
  • the two second drive devices 25 are located between the two reels 5 and are arranged on opposite sides of the rotating frame along the second direction n.
  • the first direction m is perpendicular to the second direction n, that is, the second direction n is a direction perpendicular to the rotation axis of the reel 5.
  • the size of the tube reel device 3 along the first direction m can be reduced, and the space occupied is small.
  • the rotation axes of the two reels 5 can be as close or overlapped as possible.
  • a gear box 22 may be provided between the output shaft of the reducer 19 and the reel 5, so that the output shaft of the reducer 19 is drivingly connected to the input shaft of the gear box 22, and the output shaft of the gear box 22 is drivingly connected to the reel 5, refer to FIG. 3 .
  • the guide rotation device further includes an oil pipe guide frame 6, which has a through hole for the oil pipe 4 to pass through.
  • the oil pipe 4 connected to the grab bucket oil cylinder passes through the through hole of the oil pipe guide frame 6 and is wound on the reel 5.
  • the oil pipe guide frame 6 is arranged on the rotating frame. Two of the above-mentioned oil pipe guide frames 6 are provided, and the through holes of the two oil pipe guide frames 6 are respectively located below the two reels 5, respectively limiting and guiding the oil pipes 4 connected to the two grab bucket oil cylinders.
  • two pairs of rollers 7 are arranged on the inner side of each penetration hole, and the rollers 7 are rotatably connected to the oil pipe guide frame 6.
  • Each pair of rollers 7 is arranged at intervals, and the two pairs of rollers 7 are enclosed to form a penetration space 8 for the oil pipe 4 to pass through.
  • the rotating frame is set as three parts that can be detachably connected, specifically including a first frame 9, a second frame 10 and a third frame 11.
  • the first end of the first frame 9 is rotatably connected to the fixed frame 1, the first end of the second frame 10 is detachably connected to the second end of the first frame 9, and the pipe reel 3 is arranged on the second frame 10.
  • the first end of the third frame 11 is detachably connected to the second end of the second frame 10, and the oil pipe guide frame 6 is arranged on the third frame 11.
  • a connecting flange is arranged at the second end of the first frame 9 and the first end of the second frame 10, and the second end of the first frame 9 and the first end of the second frame 10 can be detachably connected by bolts.
  • a connecting flange is arranged at the second end of the second frame 10 and the first end of the third frame 11, and the second end of the second frame 10 and the first end of the third frame 11 can be detachably connected by bolts.
  • a connecting flange is provided in the middle of the second frame 10 for supporting and fixing the second driving device 25 of the tube reel 3.
  • the grab bucket is a guide rod type grab bucket, which has a guide rod portion 12 and a grab bucket portion 21.
  • the grab bucket portion 21 is provided at one end of the guide rod portion 12 for performing a grabbing action.
  • the rotating frame is provided with a mounting hole 13 through which the guide rod portion 12 can pass, and the fixed frame 1 is provided with an escape space 14 through which the guide rod portion 12 can pass, so that the guide rod portion 12
  • the guide rod 12 can penetrate the guide rotating device, and can slide relative to the fixed frame 1 and the rotating frame, and the sliding direction is parallel to the sliding direction of the guide rotating device relative to the mast.
  • the guide rod 12 After the guide rod 12 penetrates the rotating frame and the fixed frame 1, it is connected to the hoisting wire rope of the rotary drilling rig, so that the hoisting wire rope drives the grab bucket to slide relative to the guide rotating device, and the lifting action of the grab bucket can be realized during the construction process.
  • the cross-sectional shape of the guide rod portion 12 is set to be a square, and accordingly, the mounting hole 13 on the rotating frame is set to be a square hole that can be compatible with the guide rod portion 12.
  • the rotating frame rotates relative to the fixed frame 1
  • the torque is transmitted through the interaction between the outer wall of the guide rod portion 12 and the side wall of the mounting hole 13 of the rotating frame, so that the guide rod portion 12 can rotate synchronously with the rotating frame.
  • the above-mentioned first frame 9, second frame 10 and third frame 11 are all set to be cylindrical structures for the guide rod portion 12 of the grab bucket to pass through.
  • a connecting flange can be set on the inner side of the first end of the first frame 9, and the mounting hole 13 is formed in the connecting flange.
  • wear-resistant keys 15 are provided on each inner side wall of the mounting hole 13. As shown in FIG6 , the wear-resistant keys 15 replace the rotating frame to contact the guide rod portion 12 of the grab bucket, thereby reducing the wear of the rotating frame. In addition, the wear-resistant keys 15 on each inner side wall of the mounting hole 13 cooperate with each other to guide the guide rod portion 12 of the grab bucket.
  • a slewing bearing 16 is provided between the rotating frame and the fixed frame 1, and the rotating frame is rotatably connected to the fixed frame 1 through the slewing bearing 16.
  • the slewing bearing 16 has an inner ring and an outer ring that can rotate relative to each other.
  • the inner ring of the slewing bearing 16 is fixedly connected to the fixed frame 1, and the outer ring of the slewing bearing 16 is fixedly connected to the rotating frame, so as to realize the rotatable connection between the rotating frame and the fixed frame 1.
  • a connecting flange can be provided on the outer side of the end of the fixed frame 1, and a connecting flange can be provided on the outer side of the first end of the first frame 9 or on the outer side of the middle part of the first frame 9.
  • the slewing bearing 16 is located between the connecting flange of the first frame 9 and the connecting flange of the fixed frame 1, and the connecting flange of the fixed frame 1 and the inner ring of the slewing bearing 16 are fixedly connected together by bolts, and the connecting flange of the first frame 9 and the outer ring of the slewing bearing 16 are fixedly connected together by bolts.
  • the first driving device 2 is transmission-connected to the outer ring of the slewing bearing 16 through a gear.
  • gear teeth are provided on the outer side wall of the outer ring of the slewing bearing 16, and accordingly, the first driving device 2 includes a gear 17 and a driving assembly 18.
  • the gear 17 is rotationally connected to the fixed frame 1, and the gear 17 is meshed with the gear teeth of the outer ring of the slewing bearing 16.
  • the output end of the driving assembly 18 is transmission-connected to the gear 17, and is used to drive the gear 17 to rotate relative to the fixed frame 1, thereby driving the outer ring of the slewing bearing 16 and the rotating frame to rotate relative to the fixed frame 1.
  • the driving assembly 18 includes a driving member and a reducer, the input end of the reducer is transmission-connected to the output end of the driving member, and the output end of the reducer is transmission-connected to the gear 17.
  • the provision of the reducer can make the rotating frame rotate slowly, which is conducive to ensuring the stability of the grab.
  • the power rotation device provided in the embodiment of the present application includes a second fixed frame 31, a rotating frame 32 and a driving device.
  • the second fixed frame 31 is connected to the mast
  • the rotating frame 32 is rotatably connected to the second fixed frame 31
  • the driving device is used to drive the rotating frame 32 to rotate relative to the second fixed frame 31.
  • the second fixed frame 31 is slidably connected to the mast through the slide body 41, and a guide rail for guiding the slide body 41 is provided on the mast, and the sliding direction of the slide body relative to the mast is parallel to the axial direction of the mast and the axial direction of the guide rail.
  • a pair of oppositely arranged connecting plates 42 are provided on the second fixed frame 31, one end of the connecting plate 42 is connected to the second fixed frame 31, and the other end of the connecting plate 42 and the second fixed frame 31 are both connected to the slide body 41 through a pin shaft, refer to Figure 7.
  • a driving cylinder such as a hydraulic cylinder is provided between the slide body 41 and the mast, and the axial direction of the driving cylinder is parallel to the axial direction of the guide rail, one end of the driving cylinder is connected to the mast, and the other end is connected to the slide body 41.
  • Controlling the telescopic action of the driving cylinder can control the slide body 41 to slide relative to the mast, and further make the second fixed frame 31 slide relative to the mast, so that the power rotating device as a whole slides relative to the mast, and the lifting action of the power rotating device as a whole can be realized during the construction process.
  • the guide bar grab has a second grab part 43 and a second guide bar part 33. The second grab part 43 is used to implement the grabbing action.
  • the rotating frame 32 is provided with a second mounting hole 34 through which the second guide bar part 33 of the guide bar grab passes.
  • the second fixed frame 31 is provided with a second mounting hole 34 through which the second guide bar part 33 of the guide bar grab passes.
  • the second avoidance space 44 enables the second guide rod portion 33 of the guide rod grab to pass through the power rotating device, and the second guide rod portion 33 of the guide rod grab can slide relative to the second fixed frame 31 and the rotating frame 32, and the sliding direction is parallel to the sliding direction of the power rotating device relative to the mast.
  • the second guide rod portion 33 of the guide rod grab passes through the rotating frame 32 and the second fixed frame 31, it is connected to the hoisting wire rope of the rotary drilling rig, so that the hoisting wire rope drives the guide rod grab to slide relative to the power rotating device, and the lifting action of the guide rod grab can be realized during the construction process.
  • the second mounting hole 34 on the rotating frame 32 cooperates with the second guide rod portion 33 of the guide rod grab, which can limit the rotation of the second guide rod portion 33 of the guide rod grab relative to the rotating frame 32, so that the second guide rod portion 33 of the guide rod grab is relatively fixed to the rotating frame 32.
  • the power rotating device in this embodiment further includes a second slewing bearing 37, which is arranged between the second fixed frame 31 and the rotating frame 32.
  • the second slewing bearing 37 has an inner ring and an outer ring that can rotate relative to each other.
  • the inner ring of the second slewing bearing 37 is fixedly connected to the second fixed frame 31, and the outer ring of the second slewing bearing 37 is fixedly connected to the rotating frame 32, so as to realize the rotation connection between the rotating frame 32 and the second fixed frame 31.
  • the second fixed frame 31 and the rotating frame 32 can be arranged into a cylindrical structure, and the rotating frame 32 is located below the second fixed frame 31.
  • a first connecting flange is arranged on the outer side of the lower end of the second fixed frame 31, and a second connecting flange is arranged on the outer side of the upper end of the rotating frame 32 or on the outer side of the middle part of the rotating frame 32.
  • the second slewing bearing 37 is located between the first connecting flange and the second connecting flange, and the first connecting flange is fixedly connected to the inner ring of the second slewing bearing 37 by bolts, and the second connecting flange is fixedly connected to the outer ring of the second slewing bearing 37 by bolts.
  • the second connecting flange is disposed outside the middle of the rotating frame 32 , the upper end of the rotating frame 32 extends to the lower end of the second fixed frame 31 , and is rotatably sealed with the second fixed frame 31 through a sealing ring.
  • the driving device includes a second gear 38 and a second driving assembly 39.
  • the second gear 38 is rotatably connected to the second fixed frame 31, and the second gear 38 is meshed with the gear teeth of the outer ring of the second slewing bearing 37.
  • the output end of the second driving assembly 39 is transmission-connected with the second gear 38, and is used to drive the second gear 38 to rotate relative to the second fixed frame 31, thereby driving the outer ring of the second slewing bearing 37 and the rotating frame 32 to rotate relative to the second fixed frame 31.
  • the second driving assembly 39 includes a driving member and a reducer, the input end of the reducer is transmission-connected with the output end of the driving member, and the output end of the reducer is transmission-connected with the second gear 38.
  • the setting of the reducer can make the rotating frame 32 rotate slowly, which is conducive to ensuring the stability of the guide rod grab.
  • the driving member can be a motor or a hydraulic motor 20, as long as it can drive the reducer, the gear 17 and the second gear 38 to operate, and the driving member is not specifically limited here.
  • the cross-sectional shape of the second guide rod portion 33 of the guide rod grab is set to be a square, and accordingly, the second mounting hole 34 on the rotating frame 32 is set to be a square hole that can be matched with the second guide rod portion 33 of the guide rod grab.
  • the torque is transmitted through the interaction between the outer side wall of the second guide rod portion 33 of the guide rod grab and the side wall of the second mounting hole 34 of the rotating frame 32, so that the second guide rod portion 33 of the guide rod grab can rotate synchronously with the rotating frame 32.
  • a third connecting flange can be provided on the inner side of the upper end of the rotating frame 32, and the second mounting hole 34 is formed in the third connecting flange.
  • a rotation limiting assembly is disposed between the second fixed frame 31 and the rotating frame 32 to limit the rotation angle of the rotating frame 32 relative to the second fixed frame 31 .
  • the maximum rotation angle of the rotating frame 32 relative to the second fixed frame 31 is 180 degrees.
  • the rotating frame 32 has a first extreme rotation position and a second extreme rotation position.
  • the rotating frame 32 needs to rotate 180 degrees from the first extreme rotation position to the second extreme rotation position.
  • the second grab part 43 of the guide rod grab bucket includes two symmetrically arranged grab bucket petals.
  • the grabbing direction of the guide rod grab bucket when the rotating frame 32 is at the first extreme rotation position is opposite to the grabbing direction when the rotating frame 32 is at the second extreme rotation position.
  • the rotating frame 32 can be rotated to any position between the first extreme rotation position and the second extreme rotation position.
  • the guide rod type grab bucket has different grabbing directions. By controlling the rotation of the rotating frame 32, the guide rod type grab bucket can be adjusted to any grabbing direction.
  • the rotation limiting assembly in this embodiment includes a limiting baffle 35 and a pair of limiting blocks 36, one of which is arranged on the second fixed frame 31, and the other is arranged on the rotating frame 32.
  • the limiting baffle 35 can be arranged on the second fixed frame 31, and the limiting block 36 can be arranged on the rotating frame 32.
  • the pair of limiting blocks 36 are distributed at intervals along the rotation direction of the rotating frame 32.
  • the above-mentioned rotation limit assembly can also be an angle sensor or a position sensor, the angle sensor can detect the rotation angle of the rotating frame 32, and the position sensor can detect the rotation position of the rotating frame 32.
  • the angle sensor can detect the rotation angle of the rotating frame 32
  • the position sensor can detect the rotation position of the rotating frame 32. According to the detected rotation angle of the rotating frame 32 or the detected rotation position of the rotating frame 32, it is determined whether the rotating frame 32 is rotated to the first limit rotation position and the second limit rotation position.
  • the driving device can be controlled to stop running, so that the rotation angle of the rotating frame 32 and the guide rod grab can be more accurately controlled.
  • a buffer block 40 is provided at the upper end of the second fixed frame 31 to relieve the impact force between the second guide rod portion 33 of the guide rod grab and the second fixed frame 31.
  • the buffer block 40 can be provided in the form of a gasket, so that the buffer block 40 extends along the circumference of the second fixed frame 31.
  • the buffer block 40 can be made of, but not limited to, rubber.
  • the pile driving machine includes a machine body having a mast and a guide rotating device, and the guide rotating device is slidably connected to the mast through a slide body.
  • the machine body can be a rotary drilling rig.
  • a hydraulic hose reel 100 includes: a mounting frame 110, a swivel joint 130, a connecting piece 140 and a hydraulic hose 180.
  • a guide rail 150 is provided at the bottom of the mounting frame 110.
  • the swivel joint 130 includes a first rotating body 131 and a second rotating body 133.
  • the second rotating body 133 rotates relative to the first rotating body 131.
  • the connecting piece 140 is connected to the second rotating body 133, and the connecting piece 140 is slidably connected to the guide rail 150.
  • One end of the pressure pipe 180 is connected to the second rotating body 133.
  • the first rotating body 131 and the second rotating body 133 are coaxially arranged.
  • the second rotating body 133 is connected with a hydraulic pipe 180.
  • the connecting member 140 also rotates synchronously. Therefore, the connecting member 140 is connected to the guide rail 150 through sliding connection, so that the connecting member 140 can drive the second rotating body 133 to rotate, and the hydraulic pipe 180 does not need to be subjected to force, thereby reducing wear.
  • a steering structure 151 is provided on the guide rail 150 to guide when sliding on the connecting member 140. The above-mentioned connecting member 140 rotates synchronously with the second rotating body 133. Therefore, the sliding track of the connecting member 140 on the guide rail 150 is an arc.
  • the hydraulic hose reel 100 further includes a rotating drum 120, as shown in FIG16, the rotating drum 120 is rotatably connected to the mounting frame 110 via a slewing support structure 160, and the slewing support structure 160 is a bearing.
  • the first rotating body 131 is connected to the cylinder wall of the rotating drum 120, as shown in FIG11, and the guide rail 150 includes a guide groove 153, which is arranged in an arc shape with the rotation center of the rotating drum 120 as the center of the circle, and the steering structure 151 is arranged in the guide groove 153.
  • the slewing support structure 160 drives the slewing motor 170 and the reducer in the power head device through the hydraulic pump of the chassis, drives the rotating drum 120 to rotate through the slewing support structure 160, and the rotating drum 120 drives the guide rod, and the guide rod drives the grab bucket to rotate.
  • the rotating drum 120 drives the slewing joint 130 to rotate.
  • the above-mentioned slewing joint 130 is connected to the outer wall of the rotating drum 120. Therefore, in the process of synchronous rotation of the slewing joint 130 and the rotating drum 120, the sliding track of the connecting member 140 on the guide rail 150 is an arc, so the extension direction of the guide groove 153 is an arc.
  • the cross section of the guide groove 153 is a cross section perpendicular to the extension direction of the guide groove 153. As shown in FIG. 12 , the cross section of the guide groove 153 can be rectangular.
  • the steering structure 151 is arranged in the guide groove 153, so that the end of the connecting member 140 is more conducive to guiding the sliding of the end in the process of sliding along the guide groove 153.
  • the guide groove 153 has a first inner wall 1531 and a second inner wall 1533 . 1531 is close to the rotation center of the drum 120, a convex structure 1511 is provided on the first inner side wall 1531, and a concave structure 1513 is provided on the second inner side wall 1533.
  • the concave structure 1513 is arranged opposite to the convex structure 1511 to form the steering structure 151.
  • the guide groove 153 includes the first inner side wall 1531, the second inner side wall 1533 and the bottom wall.
  • the first inner side wall 1531 and the second inner side wall 1533 are spaced apart from each other and arranged opposite to each other.
  • the convex structure 1511 can be integrally arranged with the first inner side wall 1531 and convex toward the second inner side wall 1533.
  • the outer surface of the convex structure 1511 is an arc surface, which is more conducive to guiding the connecting member 140 when sliding along the guide groove 153.
  • the concave structure 1513 is opposite to the convex structure 1511 and is concave inwardly relative to the second inner side wall 1533, so as to form an avoidance space so that the connecting member 140 can pass through.
  • the connecting member 140 includes: a dial plate 141 and a connecting rod 143, one end of the dial plate 141 is connected to the second rotating body 133, one end of the connecting rod 143 is connected to the other end of the dial plate 141, and the other end of the connecting rod 143 is slidably connected to the guide groove 153.
  • the above-mentioned dial plate 141 is a plate structure with a certain thickness, as shown in FIGS. 14 and 15 , the connecting rod 143 is disposed at one end of the dial plate 141, and the connecting rod 143 extends into the guide groove 153, so as to facilitate sliding along the guide groove 153.
  • the connecting member 140 further includes: a swivel support member 145, the swivel support member 145 is rotatably connected to the end of the connecting rod 143 away from the paddle plate 141, and the swivel support member 145 is slidably connected to the guide groove 153.
  • the swivel support member 145 is disposed on the connecting rod 143, so that when the connecting rod 143 slides along the guide groove 153, the connecting rod 143 can also rotate relative to the guide groove 153 through the swivel support member 145, which can reduce friction and make the paddle plate 141 slide more smoothly on the guide rail 150.
  • the swivel support member 145 includes a bearing, the inner ring of which is connected to the connecting rod 143, so that the paddle plate 141 moves more smoothly in the guide groove 153.
  • the connecting rod 143 includes: a base 1431, a rod body 1433 and a base 1431, the rod body 1433 is connected to the base 1431, a pressure cap 1435 is arranged at one end of the rod body 1433, and the pressure cap 1435 and the base 1431 have a preset gap along the axial direction of the rod body 1433.
  • the slewing support member 145 is arranged at the preset gap and connected to the rod body 1433.
  • the connecting member 140 also includes: a connecting plate 147, one end of the connecting plate 147 is connected to the connecting rod 143, and the other end of the connecting plate 147 is connected to the outer shell of the second rotating body 133.
  • the connecting plate 147 includes two side plates, and in combination with FIG. 10, the side plates are provided with connecting holes, and the side plates and the second rotating body 133 can be connected by rivets, screws, etc.
  • the two side plates form a clamping structure for the second rotating body 133 .
  • the second rotating body 133 is located in the space formed between the two side plates, so that the rotation of the second rotating body 133 is more stable, which is beneficial to further reduce the wear of the hydraulic pipe 180 .
  • a construction machinery 200 includes: any one of the hydraulic hose reeling devices 100, which can avoid the wear of the hydraulic hose 180.
  • the working principle of the hydraulic hose reeling device 100 is: during the construction process of the guide rod grab, when the working device grab needs to be rotated, the mounting frame 110 is stationary relative to the ground, the hydraulic pump of the chassis drives the rotary motor 170 and the reducer in the power head device to rotate, and the rotary drum 120 is driven to rotate through the rotary support structure 160, and the rotary joint 130 is connected to the rotary drum 120 as a whole, so that the rotary joint 130 will rotate with the rotary drum 120.
  • the first rotating body 131 rotates with the rotary drum 120
  • the second rotating body 133 rotates with the connecting member 140 and the hydraulic hose 180
  • the hydraulic hose 180 is a rubber hose.
  • the bearing of the connecting member 140 will rotate in the guide groove 153 to reduce friction, so that the connecting member 140 can drive the second rotating body 133 to rotate more smoothly.
  • the connecting member 140 drives the second rotating body 133 to rotate, and can bear the torque generated when the second rotating body 133 rotates, so that the hydraulic pipe 180 does not bear the torque from the second rotating body 133, thereby avoiding damage.
  • the present application also has the following advantages:
  • the second rotating body 133 of the swivel joint 130 is connected by the connecting member 140, and the connecting member slides with the guide rail, which can reduce the force on the hydraulic pipe 180 and extend the service life of the hydraulic pipe 180.
  • the steering structure 151 is provided on the guide rail 150, which is conducive to the steering of the second rotating body 133 of the swivel joint 130.
  • the swivel support member 145 is provided on the connecting member 140, which can reduce the friction force of the connecting member 140 during the sliding process along the guide rail 150, thereby further reducing the force on the hydraulic pipe 180.
  • a pipe reel rotary hydraulic system comprises a guide rod, a rotary device, a hydraulic pump 201, a second rotary motor 202 and a first oil circuit, wherein the rotary device is fixedly connected to the guide rod; the second rotary motor 202 can drive the rotary device to rotate
  • the two ends of the first oil circuit are connected to the hydraulic pump 201 and the second rotary motor 202 respectively. It can be seen that in the embodiment of the present application, the first oil circuit is connected to the hydraulic pump 201 and the second rotary motor 202, and the second rotary motor 202 can drive the rotary device to rotate.
  • the rotary device can drive the guide rod to rotate, realize the rotation of the guide rod, and avoid the construction difficulties caused by the guide rod being unable to rotate, low work efficiency, and time-consuming and labor-intensive problems when replacing different construction method devices.
  • the cross-sectional shape of the guide rod is not limited, and it can be circular, rectangular, or other shapes.
  • the second rotary motor 202 can be a variable motor, a quantitative motor, an axial motor, a radial motor, a plunger motor, a gear motor, or a cycloidal motor.
  • the type of the second rotary motor 202 is not specifically limited, and it can drive the rotary device to rotate. Those skilled in the art can make specific designs according to actual needs.
  • the rotary device includes a gear and a guide frame, wherein the gear is arranged on the guide frame; the opening of the guide frame is coaxially fixedly connected with the guide rod; and the second rotary motor 202 can drive the gear to rotate.
  • the second rotary motor 202 is meshed with the gear on the guide frame, and the rotation of the second rotary motor 202 drives the gear to rotate, thereby enabling the guide rod connected to the guide frame to rotate.
  • the rotary device can receive the power provided by the second rotary motor 202 and can drive the guide rod to rotate.
  • the structure of the rotary device is not specifically limited, and those skilled in the art can make a specific design according to actual needs.
  • a reversing valve 203 is provided in the first oil circuit, and the reversing valve 203 is used to adjust the oil supply of the hydraulic pump 201.
  • the reversing valve 203 can adjust the speed of the second rotary motor 202.
  • the reversing valve 203 can be a proportional cartridge overflow valve 206, a proportional cartridge pressure reducing valve, a plate-type proportional overflow valve 206 or a plate-type proportional pressure reducing valve.
  • the type of the reversing valve 203 is not specifically limited. It can adjust the oil supply of the hydraulic pump 201 and adjust the speed of the second rotary motor 202. Technical personnel in this field can make specific designs according to actual needs.
  • the reversing valve 203 is preferably an electric control valve
  • the hydraulic pump 201 is connected to the reversing valve 203
  • the hydraulic pump 201 provides pressure oil for the reversing valve 203.
  • the reversing valve 203 can adjust the displacement of the hydraulic pump 201 by changing the current value (i.e., the electromagnet of the reversing valve 203 is energized to control the output flow of the hydraulic pump 201) according to the on-site requirements, that is, the flow flowing into the second rotary motor 202 is changed, so that the speed of the second rotary motor 202 can be adjusted, and the rotation of the rotary device can be realized.
  • a switching valve 204 is provided in the first oil circuit, and the switching valve 204 is located between the reversing valve 203 and the second rotary motor 202; the second oil circuit is led out from the switching valve 204, and a tube reel device is provided in the second oil circuit.
  • the switching valve 204 can not only realize the switching between the first oil circuit and the second oil circuit, so as to realize the switching between the rotary device and the tube reel device, but also the switching valve 204 is assembled on the tube reel reinstallation device, which is conducive to the modular design of the tube reel rotary hydraulic system.
  • the switching valve 204 can be an electromagnetic switching valve, a hydraulically controlled reversing valve, an electric proportional reversing valve, a plate valve or a cartridge valve.
  • the type of the switching valve 204 is not specifically limited, and it can realize the switching between the first oil circuit and the second oil circuit. Those skilled in the art can make a specific design according to actual needs.
  • the second oil circuit is provided with an active lowering valve 205, and the active lowering valve 205 is located between the switching valve 204 and the pipe reel device.
  • the active lowering valve 205 needs to be energized to conduct the oil circuit and realize the lowering of the pipe reel body.
  • the pipe reel device includes a stop valve and a pipe reel motor sequentially arranged in the second oil circuit.
  • the electromagnet of the switching valve 204 When the electromagnet of the switching valve 204 is not energized, it defaults to the pipe reeling condition, that is, at this time, the forward and reverse rotation of the pipe reel motor can be realized by the energizing sequence of the proportional magnets of the reversing valve 203; when the electromagnet of the switching valve 204 is energized, it switches to the rotating condition. At this time, the forward and reverse rotation of the second rotary motor 202 is realized by the energizing sequence of the proportional electromagnets of the reversing valve 203.
  • the default working condition can also be the rotation working condition, that is, at this time, the forward and reverse rotation of the second rotary motor 202 can be achieved through the energizing sequence of the proportional magnets of the reversing valve 203; when the electromagnet of the switching valve 204 is energized, it switches to the pipe winding working condition. At this time, the forward and reverse rotation of the pipe winding motor can be achieved through the energizing sequence of the proportional electromagnets of the reversing valve 203.
  • the stop valve can realize the coiling, which is mainly used for winding the pipe winding body onto the reel of the pipe winding device during component assembly.
  • stop valve can be a solenoid stop valve, a manual stop valve 211, an electrically controlled reversing valve, a hydraulically controlled reversing valve or an electric proportional reversing valve, and those skilled in the art can Carry out specific design according to actual needs.
  • the pipe reel device also includes an overflow valve 206, which is arranged between the active lowering valve 205 and the stop valve; the detector and the controller are connected by signal; the controller and the overflow valve 206 are connected by signal.
  • the controller can receive signals from the detector.
  • the pipe reel device also includes a pipe reel body; the detector is used to detect the lowering depth of the guide rod; and/or the detector is used to detect the pressure of the pipe reel body.
  • the controller can receive signals from the detector, that is, the depth of the grab bucket working device connected to the guide rod is transmitted to the controller as a signal source, or the pressure of the pipe reel body is transmitted to the controller as a signal source, or the depth of the grab bucket working device connected to the guide rod and the pressure of the pipe reel body are transmitted to the controller as a signal source, and the controller outputs different current values to control the overflow valve 206, so as to achieve matching of the movement speed of the pipe reel body and the grab bucket, and ensure that the pipe reel body is not damaged or torn off during work.
  • the overflow valve 206 can be a plug-in proportional overflow valve or a plate proportional overflow valve, and those skilled in the art can make specific designs according to actual needs.
  • the second oil circuit is provided with a balance valve 207, and the inlet of the balance valve 207 is connected to the first interface of the pipe reel motor.
  • the hydraulic oil flows into the tube reel motor from the bypass one-way valve of the balance valve 207.
  • the first interface of the tube reel motor is the B port of the tube reel motor.
  • the oil circuit where the balance valve is located can flow in both forward and reverse directions.
  • the second oil circuit is provided with an oil replenishment one-way valve 209, and the inlet of the oil replenishment one-way valve 209 is connected to the first interface of the tube reel motor.
  • the oil replenishment one-way valve 209 is mainly used to prevent the tube reel motor from malfunctioning due to air suction when the tube reel body floats or releases the tube.
  • the oil replenishment one-way valve 209 can passively replenish hydraulic oil from the return oil circuit of the second oil circuit.
  • the oil replenishment one-way valve only allows oil to enter the oil tank from the motor after passing through the oil replenishment one-way valve, and the direction is irreversible.
  • the stop valve includes a manual stop valve 211 and an electric stop valve 210, and the manual stop valve 211 and the electric stop valve 210 are connected in parallel to the second oil circuit.
  • the tube reel motor includes a first tube reel motor 81 and a second tube reel motor 82, and the first tube reel motor 81 and the second tube reel motor 82 are connected in parallel to the second oil circuit.
  • the first tube reel motor 81 is a left tube reel motor
  • the second tube reel motor 82 is a right tube reel motor, that is, the second oil circuit is connected in parallel with the left tube reel motor and the right tube reel motor.
  • the default is the tube reel working condition, that is, at this time, the forward and reverse rotation of the left tube reel motor and the right tube reel motor can be realized through the energizing sequence of the proportional magnets of the reversing valve 203; when the electromagnet of the switching valve 204 is energized, it is switched to the rotary working condition, at this time, the forward and reverse rotation of the second rotary motor 202 can be realized through the energizing sequence of the proportional electromagnets of the reversing valve 203. It should be noted that when the electromagnet of the switching valve 204 is not energized, the default working condition can also be the rotary working condition.
  • electric stop valves 210 are respectively installed in the working oil circuits of the left tube reel motor and the right tube reel motor to realize the separate operation of the motors.
  • Manual stop valves 211 are respectively installed in the working oil circuits of the left tube winding motor and the right tube winding motor to realize the coiling operation of the tube winding body.
  • the stop valves connected to the left tube winding motor are the first manual stop valve and the first electric stop valve
  • the stop valves connected to the right tube winding motor are the second manual stop valve and the second electric stop valve.
  • the oil inlet of the first electric stop valve i.e., the P port of the first electric stop valve
  • the oil outlet i.e., the A port of the first electric stop valve
  • the oil inlet of the second electric stop valve i.e., the P port of the second electric stop valve
  • the oil outlet i.e., the A port of the second electric stop valve
  • the switching valve 204 is not powered, it is the pipe reel working condition. If the first electric stop valve is powered and the second electric stop valve is not powered, the right pipe reel motor works. If the first electric stop valve is not powered and the second electric stop valve is powered, the left pipe reel motor 7 works, so that the pipe reel motor can work alone.
  • the manual stop valve 211 can realize manual coiling, which is mainly used to wind the coiling body onto the reel of the reel device during component assembly.
  • the second electric stop valve is energized, the right coiling pipe oil circuit is disconnected, and the right coiling pipe cannot rotate.
  • the first manual stop valve is opened, and the first interface and the second interface oil circuit of the left coiling pipe motor are connected. At this time, it is in a floating state, and the worker can coil or release the pipe to complete the manual coiling operation.
  • the principle of manual coiling of the right coiling pipe is the same.
  • the present application also provides a grab assembly, including a grab and a guide rotating device or a power rotating device provided in any of the above embodiments, wherein the guide rotating device or the power rotating device is arranged on the mast and used to Drive the grab bucket to rotate.
  • the guide rotation device in the above embodiment can automatically adjust the grabbing direction of the grab bucket
  • the power rotation device in the above embodiment can drive the guide rod type grab bucket to rotate, so as to realize the automatic adjustment of the grabbing direction of the guide rod type grab bucket.
  • the torsion of the oil pipe 4 can be effectively avoided, and the damage to the oil pipe 4 can be reduced.
  • the grab bucket assembly in this embodiment can automatically adjust the grabbing direction of the grab bucket, and can avoid the problem of torsion damage to the oil pipe 4, and has the advantages of convenient adjustment and long service life.
  • the derivation process of the beneficial effects of the grab bucket assembly in the embodiment of the present application is generally similar to the derivation process of the beneficial effects of the above-mentioned guide rotation device, so it will not be repeated here.
  • the embodiment of the present application also provides a pile-driving machine, including the guide rotation device, power rotation device, grab assembly, hydraulic pipe reel or pipe reel rotation hydraulic system provided in any of the above embodiments. It has all the advantages of the above guide rotation device, power rotation device, grab assembly, hydraulic pipe reel or pipe reel rotation hydraulic system, which will not be repeated here.
  • the derivation process of the beneficial effects of the pile-driving machine in the embodiment of the present application is generally similar to the derivation process of the beneficial effects of the above guide rotation device or grab assembly, so it will not be repeated here.

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Abstract

本申请涉及工程机械技术领域,提供一种导向旋转装置、液压卷管装置及桩工机械,其中,导向旋转装置包括固定架体、旋转架体、第一驱动装置和卷管装置,固定架体用于与桅杆相连接;旋转架体用于与抓斗相连接,旋转架体与固定架体转动连接;第一驱动装置设置为驱动旋转架体相对于固定架体转动;卷管装置用于收放与抓斗的抓斗油缸相连接的油管,卷管装置设置于旋转架体上。如此设置,在调整抓斗的抓取方向时,抓斗和卷管装置均与旋转架体同步转动,抓斗和卷管装置相对固定,可以有效避免油管被扭转的问题,从而减少油管损坏的问题,解决了现有技术中在调整导杆式抓斗的抓取方向时存在的油管被扭转的问题。

Description

导向旋转装置、液压卷管装置及桩工机械
相关申请的交叉引用
本申请要求于2022年11月02日提交的申请号为202222918615.5,发明名称为“导向旋转装置、抓斗组件及桩工机械”、于2022年11月02日提交的申请号为202222918613.6,发明名称为“动力旋转装置、抓斗组件及桩工机械”、于2022年11月04日提交的申请号为202222944907.6,发明名称为“一种卷管回转液压系统及工程机械”、于2022年11月16日提交的申请号为202223044866.1,发明名称为“液压卷管装置和工程机械”、的中国专利申请的优先权,其通过引用方式全部并入本文。
技术领域
本申请涉及工程机械技术领域,尤其涉及一种导向旋转装置、液压卷管装置及桩工机械。
背景技术
导杆式抓斗是一种适合高层建筑、地铁等地下连续墙成槽作业的基础施工机械。导杆式抓斗可以通过滑动架与旋挖钻机的桅杆滑动连接,导杆式抓斗的导杆与滑动架滑动连接,滑动架为导杆式抓斗的升降导向,并限制导杆式抓斗相对于桅杆转动,以确保导杆式抓斗工作过程的稳定性。导杆式抓斗的抓取动作主要依靠抓斗油缸实现,在滑动架上下方设置有卷管装置,用于收卷连接于抓斗油缸的油管。
现有技术中为满足不同角度成槽、修槽的工况需求,通常会将抓斗相对于滑动架进行旋转,以调整导杆式抓斗的抓取方向。当抓斗相对于滑动架旋转时,与抓斗油缸相连接的油管的端部随抓斗油缸和抓斗同步转动,而由于油管卷绕在卷管装置上,且卷管装置设置于滑动架上,抓斗油缸和卷管装置就会产生相对转动,从而导致油管被扭转的问题,严重时容易损坏油管。
因此,如何解决现有技术中在调整导杆式抓斗的抓取方向时存在的油管被扭转的问题,成为本领域技术人员所要解决的重要技术问题。
发明内容
本申请提供一种导向旋转装置、液压卷管装置及桩工机械,用以解决现有技术中在调整导杆式抓斗的抓取方向时存在的油管被扭转的缺陷。
第一方面,本申请提供一种导向旋转装置,包括:固定架体,用于与桅杆相连接;旋转架体,用于与抓斗相连接,所述旋转架体与所述固定架体转动连接;第一驱动装置,设置为驱动所述旋转架体相对于所述固定架体转动;卷管装置,用于收放与所述抓斗的抓斗油缸相连接的油管,所述卷管装置设置于所述旋转架体上。
第二方面,本申请提供一种动力旋转装置,包括:第二固定架体,与桅杆相连接;旋转架体,与所述第二固定架体转动连接,所述旋转架体设置有供导杆式抓斗的第二导杆部贯穿的第二安装孔,所述第二安装孔设置为与所述导杆式抓斗的第二导杆部相配合、以限制所述导杆式抓斗的第二导杆部相对于所述旋转架体转动,所述第二固定架体设置有供所述导杆式抓斗的第二导杆部穿过的第二避让空间;驱动装置,设置为驱动所述旋转架体相对于所述第二固定架体转动。
第三方面,本申请还提供一种液压卷管装置,包括:安装架,底部设有导轨;回转接头,包括第一回转体和第二回转体,所述第二回转体相对所述第一回转体转动; 连接件,与所述第二回转体连接,且所述连接件与所述导轨滑动连接;液压管,一端与所述第二回转体连接。
第四方面,本申请还提供一种卷管回转液压系统,包括:导杆;回转装置,与所述导杆固定连接;液压泵;第二回转马达,能够驱动所述回转装置转动;第一油路,两端分别连接所述液压泵和所述第二回转马达。
第五方面,一种抓斗组件,包括抓斗和用于驱动所述抓斗转动的旋转装置,所述旋转装置为所述的导向旋转装置,或者所述的动力旋转装置。
第六方面,一种桩工机械,包括所述的导向旋转装置,或者,包括所述的动力旋转装置,或者,包括所述的抓斗组件,或者,包括所述的液压卷管装置,或者,包括所述的卷管回转液压系统。
本申请本申请本申请提供的导向旋转装置,包括固定架体、旋转架体、第一驱动装置和卷管装置。固定架体用于与桅杆相连接,旋转架体与固定架体转动连接,第一驱动装置则用于驱使旋转架体相对于固定架体转动。将抓斗与旋转架体相连接,可以使旋转架体带动抓斗转动,以实现对抓斗的抓取方向的调整。上述卷管装置用于收放与抓斗的抓斗油缸相连接的油管。将卷管装置设置于旋转架体上,卷管装置能够随旋转架体一起转动。如此设置,在调整抓斗的抓取方向时,抓斗和卷管装置均与旋转架体同步转动,抓斗和卷管装置相对固定,可以有效避免油管被扭转的问题,从而减少油管因扭转而被损坏的问题,解决了现有技术中在调整导杆式抓斗的抓取方向时存在的油管被扭转的问题。
进一步,在本申请提供的抓斗组件中,由于具备如上所述的导向旋转装置,因此同样具备如上所述的各种优势。
进一步,在本申请提供的桩工机械中,由于具备如上所述的导向旋转装置或者抓斗组件,因此同样具备如上所述的各种优势。
附图说明
为了更清楚地说明本申请或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请提供的导向旋转装置与抓斗的装配结构示意图;
图2是本申请提供的卷管装置与第二架体的连接结构示意图;
图3是本申请提供的卷管装置在第二架体上的布置位置示意图;
图4是本申请提供的油管导向架的结构示意图;
图5是本申请提供的固定架体与旋转架体之间的连接结构示意图;
图6是图5中I的放大图;
图7是本申请提供的动力旋转装置与导杆式抓斗的装配结构示意图;
图8是本申请提供的动力旋转装置的局部剖视图;
图9是本申请提供的动力旋转装置的俯视图;
图10为本申请的一种实施方式中的液压卷管装置的局部剖视结构示意图;
图11为本申请的一种实施方式中的液压卷管装置的导轨的俯视结构示意图;
图12为本申请的一种实施方式中的液压卷管装置的导轨的剖视结构示意图;
图13为本申请的一种实施方式中的液压卷管装置的连接件的主视结构示意图;
图14为本申请的一种实施方式中的液压卷管装置的连接件的侧视结构示意图;
图15为本申请的一种实施方式中的液压卷管装置的连接件的俯视结构示意图;
图16为本申请的另一种实施方式中的工程机械的主视结构示意图;
图17为图16的实施方式中的工程机械的俯视结构示意图;
图18为本申请实施例提供的系统原理图;
图19为本申请实施例提供的连接结构示意图。
附图标记:
1、固定架体;2、第一驱动装置;3、卷管装置;4、油管;5、卷盘;6、油管导向
架;7、滚轮;8、穿设空间;9、第一架体;10、第二架体;11、第三架体;12、导杆部;13、安装孔;14、避让空间;15、耐磨键;16、回转支承;17、齿轮;18、驱动组件;19、减速机;20、液压马达;21、抓斗部;22、齿轮箱;23、滑架体;24、连接板;25、第二驱动装置;31、第二固定架体;32、旋转架体;33、第二导杆部;34、第二安装孔;35、限位挡板;36、限位块;37、第二回转支承;38、第二齿轮;39、第二驱动组件;40、缓冲块;41、滑架体;42、连接板;43、第二抓斗部;44、第二避让空间;200、工程机械;100、液压卷管装置;110、安装架;120、转筒;130、回转接头;131、第一回转体;133、第二回转体;140、连接件;141、拨板;143、连接杆;1431、底座;1433、杆本体;1435、压盖;145、回转支撑件;147、连接板;150、导轨;151、转向结构;1511、凸起结构;1513、内凹结构;153、导向槽;1531、第一内侧壁;1533、第二内侧壁;160、回转支撑结构;170、回转马达;180、液压管;201、液压泵,202、第二回转马达,203、换向阀,204、切换阀,205、主动下放阀,206、溢流阀,207、平衡阀,81、第一卷管马达,82、第二卷管马达,209、补油单向阀,210、电动截止阀,211、手动截止阀。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合本申请中的附图,对本申请中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
如图1至图6所示,本申请实施例提供的导向旋转装置,包括固定架体1、旋转架体、第一驱动装置2和卷管装置3。
具体来说,固定架体1用于与桅杆相连接,一般地,固定架体1通过滑架体23与桅杆滑动连接,在桅杆上设置有用于对滑架体23导向的导轨,滑架体23相对于桅杆的滑动方向平行于桅杆的轴线方向和导轨的轴线方向。在固定架体1上设置有一对相对设置的连接板24,连接板24的一端与固定架体1相连接,连接板24的另一端和固定架体1均通过销轴与滑架体23相连接,参照图1。
在滑架体23与桅杆之间设置有液压油缸等驱动缸,驱动缸的轴线方向与导轨的轴线方向相平行,驱动缸的一端与桅杆相连接,另一端与滑架体23相连接。控制驱动缸的伸缩动作,可以控制滑架体23相对于桅杆的滑动,进一步使固定架体1相对于桅杆滑动,从而使导向旋转装置整体相对于桅杆滑动,在施工过程中可以实现导向旋转装置整体的升降动作。旋转架体与固定架体1转动连接,第一驱动装置2则用于驱使旋转架体相对于固定架体1转动。通过导杆连接抓斗并与旋转架体传动连接,可以使旋转架体带动抓斗转动,以实现对抓斗的抓取方向的调整。抓斗的抓取动作由抓斗油缸提供动力。抓斗油缸的进出油口均通过油管4连接于油泵和油箱。在作业过程中,随着抓斗的升降,抓斗油缸与油泵之间的油管4以及抓斗油缸与油箱之间的油管4的长度需求会发生变化,上述卷管装置3用于收放与抓斗的抓斗油缸相连接的油管4。
本实施例中,将卷管装置3设置于旋转架体上,使卷管装置3能够随旋转架体一起转动。如此设置,在调整抓斗的抓取方向时,抓斗和卷管装置3均与旋转架体同步转动,抓斗和卷管装置3相对固定,可以有效避免油管4被扭转的问题,从而减少油 管4损坏的问题,解决了现有技术中在调整导杆式抓斗的抓取方向时存在的油管4被扭转的问题。
本申请实施例中,卷管装置3包括卷盘5和第二驱动装置25。卷盘5能够相对于旋转架体转动,卷盘5相对于旋转架体的转动轴线垂直于旋转架体相对于固定架体1的转动轴线。第二驱动装置25则用于驱动卷盘5相对于旋转架体转动。第二驱动装置25包括减速机19和液压马达20,将液压马达20的输出轴与减速机19的输入轴传动连接,将减速机19的输出轴与卷盘5传动连接即可。
参照图1,抓斗的抓斗部21具有两个对称设置的抓斗斗瓣,相应地,设置有两个抓斗油缸,利用两个抓斗油缸分别驱动两个抓斗斗瓣动作。故本实施例中,将卷盘5和第二驱动装置25均设置两个,使卷盘5和第二驱动装置25均与抓斗油缸一一对应。两个卷盘5相互平行,且沿第一方向m设置于旋转架体的两侧,第一方向m为与卷盘5的转动轴线相平行的方向,参照图3。两个第二驱动装置25位于两个卷盘5之间,且沿第二方向n设置于旋转架体相对的两侧。如图3所示,第一方向m与第二方向n相垂直,即,第二方向n为与卷盘5的转动轴线相垂直的方向。如此设置,可以减少卷管装置3沿第一方向m的尺寸,占用空间小。为减小卷管装置3沿第二方向n的尺寸,可以使两个卷盘5的转动轴线尽可能的接近或重合。为适应液压马达20、减速机19的安装,可以在减速机19的输出轴与卷盘5之间设置齿轮箱22,使减速机19的输出轴与齿轮箱22的输入轴传动连接,使齿轮箱22的输出轴与卷盘5传动连接,参照图3。
本实施例中,导向旋转装置还包括油管导向架6,油管导向架6具有穿设孔,供油管4穿过,与抓斗油缸相连接的油管4穿过油管导向架6的穿设孔后,卷绕于卷盘5上。为使油管导向架6与抓斗油缸、卷盘5相对固定,将油管导向架6设置于旋转架体上。上述油管导向架6设置有两个,两个油管导向架6的穿设孔分别位于两个卷盘5的下方,分别对连接于两个抓斗油缸的油管4进行限位和导向。
进一步实施例中,为了在收放油管4时能够减少对油管4的磨损,在每个穿设孔的内侧设置两对滚轮7,滚轮7与油管导向架6转动连接。每对滚轮7间隔分布,两对滚轮7相围合形成穿设空间8,供油管4穿过。在收放油管4时,若油管4与滚轮7接触,在油管4与滚轮7之间的摩擦力的作用下,滚轮7相对于油管导向架6转动,将油管4与油管导向架6之间的滑动摩擦转化为油管4与滚轮7之间的滚动摩擦,减小了作用于油管4的摩擦力,减少了对油管4的磨损,有利于延长油管4的使用寿命。为方便导向旋转装置与桅杆之间的装配连接以及抓斗与导向旋转装置之间的装配,降低装配过程中的劳动强度,本实施例中,将旋转架体设置为可拆卸连接的三部分,具体包括第一架体9、第二架体10和第三架体11。上述第一架体9的第一端与固定架体1转动连接,第二架体10的第一端与第一架体9的第二端可拆卸连接,将卷管装置3设置于第二架体10上。上述第三架体11的第一端与第二架体10的第二端可拆卸连接,将油管导向架6设置于第三架体11上。在将导向旋转装置与桅杆相连接时,先将与第一架体9转动连接的固定架体1与桅杆相连接,然后将第二架体10与第一架体9连接在一起,之后再将第三架体11与第二架体10连接在一起。在第一架体9的第二端和第二架体10的第一端设置有连接法兰,利用螺栓可以将第一架体9的第二端与第二架体10的第一端可拆卸的相连接。在第二架体10的第二端与第三架体11的第一端设置有连接法兰,利用螺栓可以将第二架体10的第二端与第三架体11的第一端可拆卸的相连接。在第二架体10的中部位置设置有连接法兰,用于支撑、固定卷管装置3的第二驱动装置25。上述抓斗为导杆式抓斗,具有导杆部12和抓斗部21,抓斗部21设置于导杆部12的一端,用于实施抓取动作。旋转架体上设置有能够供导杆部12贯穿的安装孔13,固定架体1上设置有供导杆部12穿过的避让空间14,使得导杆部12 能够贯穿导向旋转装置,并且导杆部12能够相对于固定架体1和旋转架体滑动,滑动方向平行于导向旋转装置相对于桅杆的滑动方向。导杆部12贯穿旋转架体和固定架体1后,与旋挖钻机的卷扬钢丝绳相连接,以使卷扬钢丝绳带动抓斗相对于导向旋转装置滑动,在施工过程中,可以实现抓斗的升降动作。
本实施例中,将导杆部12的横截面形状设置为方形,相应地,将旋转架体上的安装孔13设置为能够与导杆部12相适配的方形孔。旋转架体相对于固定架体1转动时,通过导杆部12的外侧壁与旋转架体的安装孔13的侧壁之间的相互作用传递扭矩,可以使导杆部12随旋转架体同步转动。上述第一架体9、第二架体10和第三架体11均设置为筒状结构,供抓斗的导杆部12穿过。可以在第一架体9的第一端的内侧设置连接法兰,安装孔13形成于该连接法兰。
本实施例中,在安装孔13的各个内侧壁设置有耐磨键15,如图6所示,耐磨键15代替旋转架体与抓斗的导杆部12相接触,减少旋转架体的磨损。此外,安装孔13的各个内侧壁的耐磨键15相配合,还可以实现对抓斗的导杆部12的导向。
本实施例中,在旋转架体与固定架体1之间设置有回转支承16,旋转架体通过回转支承16与固定架体1转动连接。回转支承16具有能够相对转动的内圈和外圈。将回转支承16的内圈与固定架体1固定连接,将回转支承16的外圈与旋转架体固定连接,从而实现旋转架体与固定架体1之间的转动连接。具体地,可以在固定架体1的端部的外侧设置连接法兰,在第一架体9的第一端的外侧或者在第一架体9的中部的外侧设置连接法兰,回转支承16位于第一架体9的连接法兰与固定架体1的连接法兰之间,利用螺栓将固定架体1的连接法兰与回转支承16的内圈固定连接在一起,利用螺栓将第一架体9的连接法兰与回转支承16的外圈固定连接在一起。
本实施例中,第一驱动装置2通过齿轮与回转支承16的外圈传动连接。具体地,在回转支承16的外圈的外侧壁设置有轮齿,相应地,第一驱动装置2包括齿轮17和驱动组件18。齿轮17与固定架体1转动连接,并使齿轮17与回转支承16的外圈的轮齿相啮合。上述驱动组件18的输出端与齿轮17传动连接,用于驱动齿轮17相对于固定架体1转动,进而带动回转支承16的外圈以及旋转架体相对于固定架体1转动。具体地,上述驱动组件18包括驱动件和减速器,减速器的输入端与驱动件的输出端传动连接,减速器的输出端与齿轮17传动连接。减速器的设置,可以使旋转架体缓慢地转动,有利于确保抓斗的稳定性。
如图7至图9所示,本申请实施例提供的动力旋转装置,包括第二固定架体31、旋转架体32和驱动装置。具体来说,第二固定架体31与桅杆相连接,旋转架体32与第二固定架体31转动连接,驱动装置则用于驱动旋转架体32相对于第二固定架体31转动。
需要说明的是,第二固定架体31通过滑架体41与桅杆滑动连接,在桅杆上设置有用于对滑架体41导向的导轨,滑架体相对于桅杆的滑动方向平行于桅杆的轴线方向和导轨的轴线方向。在第二固定架体31上设置有一对相对设置的连接板42,连接板42的一端与第二固定架体31相连接,连接板42的另一端和第二固定架体31均通过销轴与滑架体41相连接,参照图7。在滑架体41与桅杆之间设置有液压油缸等驱动缸,驱动缸的轴线方向与导轨的轴线方向相平行,驱动缸的一端与桅杆相连接,另一端与滑架体41相连接。控制驱动缸的伸缩动作,可以控制滑架体41相对于桅杆滑动,进一步使第二固定架体31相对于桅杆滑动,从而使动力旋转装置整体相对于桅杆滑动,在施工过程中可以实现动力旋转装置整体的升降动作。导杆式抓斗具有第二抓斗部43和第二导杆部33,第二抓斗部43用于实施抓取动作,第二导杆部33的一端与第二抓斗部43相连接。旋转架体32上设置有能够供导杆式抓斗的第二导杆部33贯穿的第二安装孔34,第二固定架体31上设置有供导杆式抓斗的第二导杆部33穿过的第 二避让空间44,使得导杆式抓斗的第二导杆部33能够贯穿动力旋转装置,并且导杆式抓斗的第二导杆部33能够相对于第二固定架体31和旋转架体32滑动,滑动方向平行于动力旋转装置相对于桅杆的滑动方向。导杆式抓斗的第二导杆部33贯穿旋转架体32和第二固定架体31后,与旋挖钻机的卷扬钢丝绳相连接,以使卷扬钢丝绳带动导杆式抓斗相对于动力旋转装置滑动,在施工过程中,可以实现导杆式抓斗的升降动作。旋转架体32上的第二安装孔34与导杆式抓斗的第二导杆部33相配合,可以限制导杆式抓斗的第二导杆部33相对于旋转架体32转动,使得导杆式抓斗的第二导杆部33与旋转架体32相对固定。在通过驱动装置驱动旋转架体32相对于第二固定架体31转动时,可以使旋转架体32带动导杆式抓斗相对于第二固定架体31同步转动,从而实现了对导杆式抓斗的抓取方向的调整。
本实施例中的动力旋转装置还包括第二回转支承37,第二回转支承37设置于第二固定架体31与旋转架体32之间。第二回转支承37具有能够相对转动的内圈和外圈。将第二回转支承37的内圈与第二固定架体31固定连接,将第二回转支承37的外圈与旋转架体32固定连接,从而实现旋转架体32与第二固定架体31之间的转动连接。具体地,可以将第二固定架体31和旋转架体32设置成筒状结构,旋转架体32位于第二固定架体31的下方。在第二固定架体31的下端的外侧设置第一连接法兰,在旋转架体32的上端的外侧或者在旋转架体32的中部的外侧设置第二连接法兰,第二回转支承37位于第一连接法兰与第二连接法兰之间,利用螺栓将第一连接法兰与第二回转支承37的内圈固定连接在一起,利用螺栓将第二连接法兰与第二回转支承37的外圈固定连接在一起。
参照图8,将第二连接法兰设置在旋转架体32的中部的外侧,旋转架体32的上端延伸至第二固定架体31的下端,并通过密封圈与第二固定架体31转动密封配合。
本实施例中,在第二回转支承37的外圈的外侧壁设置有轮齿,相应地,驱动装置包括第二齿轮38和第二驱动组件39。第二齿轮38与第二固定架体31转动连接,并使第二齿轮38与第二回转支承37的外圈的轮齿相啮合。上述第二驱动组件39的输出端与第二齿轮38传动连接,用于驱动第二齿轮38相对于第二固定架体31转动,进而带动第二回转支承37的外圈以及旋转架体32相对于第二固定架体31转动。具体地,上述第二驱动组件39包括驱动件和减速器,减速器的输入端与驱动件的输出端传动连接,减速器的输出端与第二齿轮38传动连接。减速器的设置,可以使旋转架体32缓慢地转动,有利于确保导杆式抓斗的稳定性。上述驱动件可以选用电机,也可以选用液压马达20,只要能够驱动减速器、齿轮17和第二齿轮38运转即可,此处不对驱动件作具体限定。
本实施例中,将导杆式抓斗的第二导杆部33的横截面形状设置为方形,相应地,将旋转架体32上的第二安装孔34设置为能够与导杆式抓斗的第二导杆部33相适配的方形孔。旋转架体32相对于第二固定架体31转动时,通过导杆式抓斗的第二导杆部33的外侧壁与旋转架体32的第二安装孔34的侧壁之间的相互作用传递扭矩,可以使导杆式抓斗的第二导杆部33随旋转架体32同步转动。具体地,可以在旋转架体32的上端的内侧设置第三连接法兰,第二安装孔34形成于第三连接法兰。
本实施例中,在第二固定架体31与旋转架体32之间设置有旋转限位组件,用于限制旋转架体32相对于第二固定架体31的转动角度。
本实施例中,在旋转限位组件的作用下,旋转架体32相对于第二固定架体31的最大转动角度为180度。旋转架体32具有第一极限转动位置和第二极限转动位置,旋转架体32从第一极限转动位置转动至第二极限转动位置需要转动180度。导杆式抓斗的第二抓斗部43包括两个对称设置的抓斗斗瓣,导杆式抓斗在旋转架体32位于第一极限转动位置时的抓取方向与在旋转架体32处于第二极限转动位置时的抓取方向相 同。旋转架体32可以转动至第一极限转动位置与第二极限转动位置之间的任意位置,旋转架体32转动至不同的位置,导杆式抓斗具有不同的抓取方向。通过控制旋转架体32的转动,可以将导杆式抓斗调整至任意的抓取方向。
本实施例中的旋转限位组件包括限位挡板35和一对限位块36,限位挡板35和一对限位块36中的一者设置于第二固定架体31上,另一者设置在旋转架体32上。具体地,可以将限位挡板35设置在第二固定架体31上,将限位块36设置在旋转架体32上。一对限位块36沿旋转架体32的转动方向间隔分布,当旋转架体32转动至第一极限转动位置时,其中一个限位块36与限位挡板35相抵,当旋转架体32转动至第二极限转动位置时,另一个限位块36与限位挡板35相抵。通过限位挡板35与限位块36之间的相互作用,可以限制旋转架体32的转动位置。
可选实施例中,上述旋转限位组件还可以为角度传感器或者位置传感器,角度传感器能够检测旋转架体32的转动角度,位置传感器能够检测旋转架体32的转动位置。根据检测到的旋转架体32的转动角度或者检测到的旋转架体32的转动位置,判断旋转架体32是否转动至第一极限转动位置和第二极限转动位置。当确定旋转架体32转动至第一极限转动位置或者第二极限转动位置时,控制驱动装置停止运行即可,可以更加准确地控制旋转架体32和导杆式抓斗的转动角度。
本实施例中,在第二固定架体31的上端设置有缓冲块40,用于缓解导杆式抓斗的第二导杆部33与第二固定架体31之间的冲击力。上述缓冲块40可以设置为垫片的形式,使缓冲块40沿第二固定架体31的周向延伸。上述缓冲块40可以但不限于选用橡胶材质。具体地,桩工机械包括具有桅杆的机械本体和导向旋转装置,导向旋转装置通过滑架体与桅杆滑动连接。上述机械本体可以为旋挖钻机。
如图10和图16所示,一种液压卷管装置100,包括:安装架110、回转接头130、连接件140和液压管180,安装架110的底部设有导轨150,回转接头130包括第一回转体131和第二回转体133,第二回转体133相对第一回转体131转动,连接件140与第二回转体133连接,且连接件140与导轨150滑动连接,液压管180的一端与第二回转体133连接上述的第一回转体131与第二回转体133同轴设置,结合图16所示,第二回转体133连接有液压管180,当第二回转体133转动,则连接件140也同步转动,因此,通过连接件140与导轨150滑动连接,使得连接件140可以带动第二回转体133转动,则液压管180无需受力,减少了磨损。进一步地,如图11所示,导轨150上设有转向结构151,以在连接件140上滑动时进行导向。上述的连接件140与第二回转体133同步转动,因此,连接件140在导轨150上的滑动轨迹为弧形,通过转向结构151,连接件140滑动时可避免与导轨150发生卡滞。液压卷管装置100还包括转筒120,如图16所示,转筒120与安装架110通过回转支撑结构160转动连接,回转支撑结构160为轴承。第一回转体131与转筒120的筒壁连接,如图11所示,导轨150包括导向槽153,导向槽153以转筒120的转动中心为圆心呈弧形设置,转向结构151设于导向槽153内。
结合图16和图17所示,回转支撑结构160通过底盘的液压泵,带动动力头装置中的回转马达170及减速机,通过回转支承结构160带动转筒120旋转,转筒120带动导杆,导杆带动抓斗旋转,同时,转筒120带动回转接头130转动。具体地,上述的回转接头130连接到转筒120的外筒壁上,因此,在回转接头130与转筒120同步转动的过程中,连接件140在导轨150上的滑动轨迹为弧形,因此,导向槽153的延伸方向呈弧形。导向槽153的横截面为与导向槽153的延伸方向垂直的截面,如图12所示,导向槽153的横截面可呈矩形。转向结构151设于导向槽153内,使得连接件140的端部在沿导向槽153滑动的过程中,更有利于对该端部的滑动进行导向。具体地,如图11所示,导向槽153具有第一内侧壁1531和第二内侧壁1533,第一内侧壁 1531靠近转筒120的转动中心,第一内侧壁1531上设有凸起结构1511,第二内侧壁1533上设有内凹结构1513,内凹结构1513与凸起结构1511相对设置以形成转向结构151。上述的导向槽153包括第一内侧壁1531、第二内侧壁1533和底壁,第一内侧壁1531和第二内侧壁1533相互间隔并相对设置,凸起结构1511可与第一内侧壁1531一体设置,并朝向第二内侧壁1533凸起,凸起结构1511的外表面为弧形表面,更有利于对连接件140沿导向槽153滑动时进行导向。内凹结构1513与凸起结构1511相对,并相对第二内侧壁1533向内凹陷,可以形成避让空间,以使得连接件140通过。具体地,如图13和图14所示,连接件140包括:拨板141和连接杆143,拨板141的一端与第二回转体133连接,连接杆143的一端与拨板141的另一端连接,连接杆143的另一端与导向槽153滑动连接。上述的拨板141为具有一定厚度的板体结构,如图14和图15所示,连接杆143设于拨板141的一端,连接杆143伸入导向槽153内,以有利于沿着导向槽153滑动。
继续结合图13和图14所示,连接件140还包括:回转支撑件145,回转支撑件145与连接杆143远离拨板141的一端转动连接,回转支撑件145与导向槽153滑动连接。上述的回转支撑件145设于连接杆143上,使得连接杆143在沿导向槽153滑动的过程中,连接杆143还可以通过回转支撑架145与导向槽153相对转动,可减少摩擦,使得拨板141在导轨150上滑动时更顺畅。回转支撑件145包括轴承,轴承的内圈与连接杆143连接,使拨板141在导向槽153中的动作更顺畅。更为具体地,连接杆143包括:底座1431、杆本体1433和底座1431,杆本体1433与底座1431连接,压盖1435设于杆本体1433的一端,压盖1435与底座1431沿杆本体1433的轴向具有预设间隙。其中,回转支撑件145设于预设间隙并与杆本体1433连接。进一步地,连接件140还包括:连接板147,连接板147的一端与连接杆143连接,连接板147的另一端与第二回转体133的外壳连接。其中,如图13所示,连接板147包括两个侧板,再结合图10所示,侧板上设有连接孔,可通过铆钉、螺钉等连接侧板和第二回转体133。两个侧板对第二回转体133形成夹持结构,第二回转体133位于两个侧板之间形成的空间内,使得第二回转体133的转动更为平稳,有利于进一步减少液压管180的磨损。
如图16和图17所示,一种工程机械200,包括:任一项的液压卷管装置100,可以避免液压管180的磨损。液压卷管装置100的工作原理是:导杆式抓斗在施工过程中,当需要旋转工作装置抓斗时,安装架110相对于地面静止不动,底盘的液压泵带动动力头装置中的回转马达170及减速机旋转,通过回转支承结构160带动转筒120旋转,回转接头130与转筒120连接成一体,使得回转接头130会与转筒120一起旋转。第一回转体131随转筒120旋转,第二回转体133随连接件140及液压管180一起旋转,液压管180为胶管。连接件140的轴承会在导向槽153中转动,以减少摩擦,使得连接件140在带动第二回转体133转动的过程中更顺畅。连接件140带动第二回转体133旋转,可以承受第二回转体133转动时产生的扭矩,使件液压管180不承受来自第二回转体133的扭矩,因此可以避免损坏。
根据上述描述,本申请还具有以下优点:
1、通过连接件140连接回转接头130的第二回转体133,且连接件与导轨配合滑动,可以减少液压管180的受力,延长了液压管180的使用寿命。2、通过导轨150上设置转向结构151,有利于回转接头130的第二回转体133能够转向。3、通过在连接件140上设置回转支撑件145,可以减少连接件140沿导轨150滑动过程中的摩擦力,从而更有利于减少液压管180的受力。
一种卷管回转液压系统,包括导杆、回转装置、液压泵201、第二回转马达202和第一油路,其中,回转装置与导杆固定连接;第二回转马达202能够驱动回转装置转 动;第一油路的两端分别连接液压泵201和第二回转马达202。可见,本申请实施例提供的卷管回转液压系统,第一油路连接液压泵201和第二回转马达202,并且第二回转马达202能够驱动回转装置转动,又因为回装装置与导杆固定连接,从而回转装置能够带动导杆进行转动,实现导杆的回转,避免导杆在不能回转的情况下导致施工困难,工作效率低,以及更换不同工法装置时存在费时费力等问题。需要说明的是,导杆截面形状不做限定,可以为圆形也可以为矩形也可以为其他形状。此外,第二回转马达202可以为变量马达、定量马达、轴向马达、径向马达、柱塞马达、齿轮马达或者摆线马达,第二回转马达202的类型不做具体限定,可以驱动回转装置转动即可,本领域技术人员可根据实际需要进行具体设计。
具体实施时,回转装置包括齿轮和导向架,其中,齿轮设置于导向架;导向架的开孔与导杆同轴固定连接;第二回转马达202,能够驱动齿轮转动。第二回转马达202与导向架上的齿轮啮合,第二回转马达202的转动带动齿轮旋转,从而能够使连接于导向架的导杆进行旋转。但不局限于此,回转装置能够接收第二回转马达202提供的动力,并且能够带动导杆转动即可,回转装置的结构不做具体限定,本领域技术人员可根据实际需要进行具体设计。第一油路中设置有换向阀203,换向阀203用于调整液压泵201的供油量。
需要说明的是,换向阀203能够实现第二回转马达202转速的调节,换向阀203可以为比例插装溢流阀206,比例插装减压阀、板式比例溢流阀206或者板式比例减压阀,换向阀203的类型不做具体限定,可以实现调整液压泵201的供油量,能够实现第二回转马达202转速的调节即可,本领域技术人员可根据实际需要进行具体设计。
具体实施时,换向阀203优选为电控制阀,液压泵201与换向阀203相连,液压泵201为换向阀203提供压力油,换向阀203根据现场需求通过改变电流值(即通过换向阀203电磁铁得电,控制液压泵201的输出流量),能够实现液压泵201排量的调整,即改变了流入第二回转马达202的流量,从而能够实现第二回转马达202转速的调整,实现回转装置的旋转。第一油路中设置有切换阀204,切换阀204位于换向阀203与第二回转马达202之间;切换阀204上引出第二油路,第二油路中设置有卷管装置。切换阀204不仅能够实现第一油路和第二油路的切换,从而能够实现回转装置与卷管装置的切换,并且切换阀204装配在卷管回装装置上,有利于卷管回转液压系统的模块化设计。
需要说明的是,切换阀204可以为电磁切换阀、液控换向阀、电比例换向阀、板式阀或者插装阀。切换阀204的类型不做具体限定,可以实现第一油路和第二油路之间的切换即可,本领域技术人员可根据实际需要进行具体设计。
具体实施时,第二油路设置有主动下放阀205,主动下放阀205位于切换阀204与卷管装置之间。在卷管装置下放卷管本体的过程中,主动下放阀205需得电,才能导通油路,实现卷管本体下放。卷管装置包括依次设置于第二油路的截止阀和卷管马达。在切换阀204电磁铁不得电时,默认为卷管工况,即此时,可通过换向阀203的比例磁铁得电顺序,实现卷管马达的正转和反转;在切换阀204电磁铁得电时,切换为回转工况,此时,通过换向阀203的比例电磁铁得电顺序,实现第二回转马达202的正转和反转。
需要说明的是,切换阀204电磁铁不得电时,默认工况也可以为回转工况,即此时,可通过换向阀203的比例磁铁得电顺序,实现第二回转马达202的正转和反转;在切换阀204电磁铁得电时,切换为卷管工况,此时,通过换向阀203的比例电磁铁得电顺序,实现卷管马达的正转和反转。此外,截止阀能够实现盘管,主要用于构件装配时,把卷管本体缠到卷管装置的卷盘上。需要说明的是,截止阀可以为电磁截止阀、手动截止阀211、电控换向阀、液控换向阀或者电比例换向阀,本领域技术人员可 根据实际需要进行具体设计。
具体实施时,包括检测器和控制器,卷管装置还包括溢流阀206,溢流阀206设置于主动下放阀205与截止阀之间;检测器和控制器信号连接;控制器和溢流阀206信号连接。控制器能够接收来自检测器的信号。卷管装置还包括卷管本体;检测器用于检测导杆的下放深度;和/或,检测器用于检测卷管本体的压力。控制器能够接收来自检测器的信号,即导杆上连接的抓斗工作装置的深度作为信号来源传递给控制器,或者卷管本体的压力作为信号来源传递给控制器,或者导杆上连接的抓斗工作装置的深度及卷管本体的压力作为信号来源传递给控制器,控制器输出不同的电流值控制溢流阀206,从而实现卷管本体和抓斗的运动速度相匹配,确保卷管本体在工作中不被损坏或扯断。此外,溢流阀206可以为插装比例溢流阀或者板式比例溢流阀,本领域技术人员可根据实际需要进行具体设计。第二油路设置有平衡阀207,平衡阀207的进口连接卷管马达的第一接口。在放管的时候,液压油从平衡阀207的旁路单向阀流进卷管马达,在浮动的时候,能够提供一个背压,使液压油不直接回到油箱。需要说明的是,卷管马达的第一接口为卷管马达的B口。平衡阀所在油路,油路正向反向都能流通。第二油路设置有补油单向阀209,补油单向阀209的进口连接卷管马达的第一接口。补油单向阀209主要用于卷管本体浮动或者放管的时候,能够避免卷管马达吸空导致马达发生故障,补油单向阀209能够从二油路的回油路被动补充液压油。并且,补油单向阀只允许油从马达经过补油单向阀后进入油箱,方向不可逆。截止阀包括手动截止阀211和电动截止阀210,手动截止阀211和电动截止阀210并联于第二油路。
具体实施时,卷管马达包括第一卷管马达81和第二卷管马达82,第一卷管马达81和第二卷管马达82并联于第二油路。需要说明的是第一卷管马达81为左卷管马达,第二卷管马达82为右卷管马达,即第二油路并联左卷管马达和右卷管马达。当切换阀204电磁铁不得电时,默认为卷管工况,即此时,可通过换向阀203的比例磁铁得电顺序,实现左卷管马达、右卷管马达的正转和反转;在切换阀204电磁铁得电时,切换为回转工况,此时,通过换向阀203的比例电磁铁得电顺序,实现第二回转马达202的正转和反转。需要说明的是,切换阀204电磁铁不得电时,默认工况也可以为回转工况。此外,在左卷管马达和右卷管马达工作油路中分别加装电动截止阀210,实现马达的单独工作。在左卷管马达和右卷管马达工作油路中分别加装手动截止阀211,实现卷管本体的盘管作业。此时,左卷管马达连接的截止阀为第一手动截止阀和第一电动截止阀,右卷管马达连接的截止阀为第二手动截止阀和第二电动截止阀。第一电动截止阀的进油口(即第一电动截止阀的P口)与切换阀204相接,出油口(即第一电动截止阀的A口)与左卷管马达的第二接口(即左卷管马达A口)相连,第二电动截止阀的进油口(即第二电动截止阀的P口)与切换阀204相接,出油口(即第二电动截止阀的A口)与右卷管马达的第二接口(即右卷管马达A口)相连。当切换阀204不得电时,此时为卷管工况,若第一电动截止阀得电,第二电动截止阀不得电,右卷管马达工作,若第一电动截止阀不得电,第二电动截止阀得电,左卷管马达7工作,能够实现卷管马达单独工作。
需要说明的是,手动截止阀211,能够实现手动盘管,主要用于构件装配时,把卷管本体缠到卷盘装置的卷盘上。当单独的左卷管手动盘管时,第二电动截止阀得电,右卷管油路断开,右卷管不能转动,然后打开第一手动截止阀,此时左卷管马达的第一接口和第二接口油路导通,此时处于浮动状态,工人可以卷管或放管完成手动盘管作业。单独的右卷管手动盘管与之原理相同。
另一方面,本申请实施例还提供一种抓斗组件,包括抓斗和上述任一实施例提供的导向旋转装置或动力旋转装置,导向旋转装置或动力旋转装置设置于桅杆上,用于 驱动抓斗转动。上述实施例中的导向旋转装置能够自动调整抓斗的抓取方向,上述实施例中的动力旋转装置可以带动导杆式抓斗转动,以实现对导杆式抓斗的抓取方向的自动调整。且在调整抓斗的抓取方向时能够有效避免对油管4的扭转,减少油管4的损坏。故本实施例中的抓斗组件能够自动调整抓斗的抓取方向,且能够避免对油管4的扭转损坏的问题,具有方便调整、使用寿命长的优点。本申请实施例中的抓斗组件的有益效果的推导过程与上述导向旋转装置的有益效果的推导过程大体类似,故此处不再赘述。
又一方面,本申请实施例还提供一种桩工机械,包括上述任一实施例提供的导向旋转装置、动力旋转装置、抓斗组件、液压卷管装置或者卷管回转液压系统。具有上述导向旋转装置动力旋转装置、抓斗组件、液压卷管装置或者卷管回转液压系统的全部优点,在此不再赘述。本申请实施例中的桩工机械的有益效果的推导过程与上述导向旋转装置或者抓斗组件的有益效果的推导过程大体类似,故此处不再赘述。
最后应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (19)

  1. 一种导向旋转装置,包括:
    固定架体,用于与桅杆相连接;
    旋转架体,用于与抓斗相连接,所述旋转架体与所述固定架体转动连接;
    第一驱动装置,设置为驱动所述旋转架体相对于所述固定架体转动;
    卷管装置,用于收放与所述抓斗的抓斗油缸相连接的油管,所述卷管装置设置于所述旋转架体上。
  2. 根据权利要求1所述的导向旋转装置,其中,所述卷管装置包括:
    卷盘,能够相对于所述旋转架体转动,所述卷盘相对于所述旋转架体的转动轴线与所述旋转架体相对于所述固定架体的转动轴线相垂直,所述卷盘设置有两个,两个所述卷盘沿第一方向设置于所述旋转架体的两侧;
    第二驱动装置,用于驱动所述卷盘相对于所述旋转架体转动。
  3. 根据权利要求2所述的导向旋转装置,还包括:
    油管导向架,与所述旋转架体相连接,所述油管导向架具有能够供所述油管穿过的穿设孔,所述油管导向架设置有两个,分别与两个所述卷盘对应设置。
  4. 根据权利要求3所述的导向旋转装置,其中,所述穿设孔的内侧设置有两对滚轮,所述滚轮与所述油管导向架转动连接,两对所述滚轮间隔分布,两对所述滚轮相围合形成供所述油管穿过的穿设空间。
  5. 根据权利要求3所述的导向旋转装置,其中,所述旋转架体包括:
    第一架体,第一端与所述固定架体转动连接;
    第二架体,第一端与所述第一架体的第二端可拆卸连接,所述卷管装置设置于所述第二架体上;
    第三架体,第一端与所述第二架体的第二端可拆卸连接,所述油管导向架设置于所述第三架体上。
  6. 根据权利要求1所述的导向旋转装置,其中,所述旋转架体设置有供所述抓斗的导杆部贯穿的安装孔,所述固定架体设置有供所述抓斗的导杆部穿过的避让空间;所述安装孔的各个内侧壁设置有耐磨键;
    所述抓斗的导杆部的横截面形状为方形,所述安装孔为能够与所述抓斗的导杆部相适配的方形孔。
  7. 根据权利要求1所述的导向旋转装置,其中,所述旋转架体与所述固定架体之间设置有回转支承,所述回转支承的内圈与所述固定架体固定连接,所述回转支承的外圈与所述旋转架体固定连接,所述第一驱动装置通过第二齿轮与所述回转支承的外圈传动连接。
  8. 一种动力旋转装置,包括:
    第二固定架体,与桅杆相连接;
    旋转架体,与所述第二固定架体转动连接,所述旋转架体设置有供导杆式抓斗的第二导杆部贯穿的第二安装孔,所述第二安装孔设置为与所述导杆式抓斗的第二导杆部相配合、以限制所述导杆式抓斗的第二导杆部相对于所述旋转架体转动,所述第二固定架体设置有供所述导杆式抓斗的第二导杆部穿过的第二避让空间;
    驱动装置,设置为驱动所述旋转架体相对于所述第二固定架体转动。
  9. 根据权利要求8所述的动力旋转装置,其中,所述导杆式抓斗的第二导杆部的横截面形状为方形,所述第二安装孔为能够与所述导杆式抓斗的第二导杆部相适配的方形孔。
  10. 根据权利要求8所述的动力旋转装置,其中,所述第二固定架体与所述旋转架体之间设置有旋转限位组件,所述旋转限位组件设置为限制所述旋转架体相对于所 述第二固定架体的转动角度,所述旋转架体相对于所述第二固定架体的最大转动角度为180度;
    所述旋转限位组件包括:限位挡板,一对限位块;所述一对限位块沿所述旋转架体的转动方向间隔分布,所述限位块设置为能够与所述限位挡板相抵接。。
  11. 根据权利要求8所述的动力旋转装置,其中,还包括:
    第二回转支承,设置于所述第二固定架体与所述旋转架体之间,所述第二回转支承的内圈与所述第二固定架体固定连接,所述第二回转支承的外圈与所述旋转架体固定连接,所述第二回转支承的外圈的外侧壁设置有轮齿,所述驱动装置包括:
    第二齿轮,与所述第二固定架体转动连接,所述第二齿轮与所述第二回转支承的外圈的轮齿啮合传动;
    第二驱动组件,设置为驱动所述第二齿轮相对于所述第二固定架体转动。
  12. 根据权利要求8所述的动力旋转装置,其中,所述第二固定架体的上端设置有缓冲块。
  13. 一种液压卷管装置,包括:
    安装架,底部设有导轨;
    回转接头,包括第一回转体和第二回转体,所述第二回转体相对所述第一回转体转动;
    连接件,与所述第二回转体连接,且所述连接件与所述导轨滑动连接;
    液压管,一端与所述第二回转体连接。
  14. 根据权利要求13所述的液压卷管装置,其中,所述导轨上设有转向结构,以在所述连接件沿所述导轨滑动时进行导向;
    还包括转筒,所述转筒与所述安装架转动连接,所述第一回转体与所述转筒的筒壁连接,所述导轨包括导向槽,所述导向槽以所述转筒的转动中心为圆心呈弧形设置,所述转向结构设于所述导向槽内;
    所述导向槽具有第一内侧壁和所述第二内侧壁,所述第一内侧壁靠近所述转筒的转动中心,所述第一内侧壁上设有凸起结构,所述第二内侧壁上设有内凹结构,所述内凹结构与所述凸起结构相对设置以形成转向结构;
    所述连接件包括:
    拨板,一端与所述第二回转体连接;
    连接杆,一端与所述拨板的另一端连接,所述连接杆的另一端与所述导向槽滑动连接;所述连接件还包括回转支撑件,所述回转支撑件与所述连接杆远离所述拨板的一端转动连接,所述回转支撑件与所述导向槽滑动连接;所述回转支撑件包括轴承,所述轴承的内圈与所述连接杆连接;
    所述连接件还包括连接板,所述连接板的一端与所述连接杆连接,所述连接板的另一端与所述第二回转体的外壳连接;
    所述连接杆包括:
    底座;
    杆本体,与所述底座连接;
    压盖,设于所述杆本体的一端,所述压盖与所述底座之间沿所述杆本体的轴向具有预设间隙,所述预设间隙设有所述回转支撑件,所述回转支撑件与所述杆本体连接。
  15. 一种卷管回转液压系统,所述卷管回转液压系统包括:
    导杆;
    回转装置,与所述导杆固定连接;
    液压泵;
    第二回转马达,能够驱动所述回转装置转动;
    第一油路,两端分别连接所述液压泵和所述第二回转马达。
  16. 根据权利要求15所述的卷管回转液压系统,其中,所述回转装置包括齿轮和导向架:所述齿轮设置于所述导向架;所述导向架的开孔与所述导杆同轴固定连接;所述第二回转马达,能够驱动所述齿轮转动。
  17. 根据权利要求15所述的卷管回转液压系统,其中,所述第一油路中设置有换向阀,所述换向阀用于调整所述液压泵的供油量;所述第一油路中设置有切换阀,所述切换阀位于所述电比例换向阀与所述第二回转马达之间;所述切换阀上引出第二油路,所述第二油路中设置有卷管装置;所述第二油路设置有主动下放阀,所述主动下放阀位于所述切换阀与所述卷管装置之间;所述卷管装置包括依次设置于第二油路的截止阀和卷管马达;所述第二油路设置有平衡阀,所述平衡阀的进口连接所述卷管马达的第一接口;
    所述卷管回转液压系统还包括检测器和控制器;
    所述卷管装置还包括溢流阀,所述溢流阀设置于所述主动下放阀与所述截止阀之间;所述检测器和所述控制器信号连接;所述控制器和所述溢流阀信号连接;所述卷管装置还包括卷管本体;所述检测器用于检测所述导杆的下放深度;和/或,所述检测器用于检测所述卷管本体的压力。
  18. 一种抓斗组件,包括抓斗和用于驱动所述抓斗转动的旋转装置,其中,所述旋转装置为权利要求1至7任意一项所述的导向旋转装置,或者如权利要求8至12任意一项所述的动力旋转装置。
  19. 一种桩工机械,包括如权利要求1至7任意一项所述的导向旋转装置,或者,包括如权利要求8至12任意一项所述的动力旋转装置,或者,包括如权利要求18所述的抓斗组件,或者,包括如权利要求13至14任意一项所述的液压卷管装置,或者,包括如权利要求15至17任意一项所述的卷管回转液压系统。
PCT/CN2023/074543 2022-11-02 2023-02-06 导向旋转装置、液压卷管装置及桩工机械 WO2024093039A1 (zh)

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CN202222944907.6U CN218538854U (zh) 2022-11-04 2022-11-04 液压卷管装置和工程机械
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CN102536116A (zh) * 2012-01-31 2012-07-04 曾风雷 双功能旋挖机
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CN105133680A (zh) * 2015-09-06 2015-12-09 固安飞腾机械制造有限公司 一种旋挖导杆式窄墙防渗施工用液压抓斗
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JP2003293360A (ja) * 2002-04-03 2003-10-15 Sanwa Kizai Co Ltd 2重反転式掘削撹拌機
DE102008027023A1 (de) * 2008-06-06 2009-12-10 Fritz Hildebrandt Arbeits-Dreh und Schwenkvorrichtung zur Aufnahme und Betrieb von Zahnrad und Rotorgetriebene handelsübliche Werkzeuge an Baggern, Radladern, Schleppern und dergleichen
CN102536116A (zh) * 2012-01-31 2012-07-04 曾风雷 双功能旋挖机
CN102756952A (zh) * 2012-06-28 2012-10-31 三一重工股份有限公司 液压卷管控制系统、连续墙抓斗和扩孔钻机
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