CN212427211U - Accurate positioning system for immersed tube joint connector - Google Patents

Abstract

The utility model discloses an accurate positioning system and a positioning method for a joint of a immersed tube joint, wherein the positioning system comprises a transportation mechanism and a positioning jack mechanism arranged in a combined cavity, the positioning jack mechanism comprises a plurality of jacks, the transportation mechanism comprises a gantry hanger frame for hoisting the jacks between the immersed tube joint and the combined cavity, a rail transport vehicle for transporting the jacks in the combined cavity, and a travelling crane track matched with the rail transport vehicle; a beam moving track of the gantry hanger penetrates through a manhole door of the immersed tube section end sealing door; the traveling crane rail is a straight rail arranged along the transverse direction and is fixedly arranged on the bottom surface of the combining cavity; the rail transport vehicle is provided with a first locking component between the rail transport vehicle and the traveling rails, and the vehicle body of the rail transport vehicle comprises a jack fixing component for fixedly connecting a jack. The positioning system and the positioning method can conveniently realize transportation and installation of the positioning jack mechanism, facilitate positioning construction of the immersed tube joint and improve construction efficiency.

Description

Accurate positioning system for immersed tube joint connector

Technical Field

The utility model belongs to the technical field of the immersed tube construction under water, especially, relate to the accurate positioning system of immersed tube coupling joint.

Background

The sinking pipe method tunnel construction, transport the sinking pipe joint prefabricated in the semi-submerged barge or dry dock to the preset position and sink and dock, in the sinking pipe tunnel construction process, need carry on the position adjustment among the sinking pipe joints, in order to guarantee its butt joint installation accuracy, this positioning process can adopt the positioning jack mechanism that the jack makes up to push away the sinking pipe joint end closing door in the combination intracavity of the butt joint among the sinking pipe joints and realize, however, the sinking pipe joint dead weight is great, the positioning jack mechanism will meet the construction requirement of pushing away and adjusting the sinking pipe joint position, need include a plurality of jacks, make the transportation and installation of positioning jack mechanism comparatively heavy in the construction process, the construction cost is higher, influence the construction efficiency of the accurate positioning construction of sinking pipe joint.

Disclosure of Invention

The utility model discloses it is not enough to prior art, provide the accurate positioning system of immersed tube coupling joint. The accurate positioning system of immersed tube coupling joint can be convenient realize transporting and installing of positioning jack mechanism, make things convenient for immersed tube coupling joint positioning construction, and be favorable to improving the efficiency of construction.

In order to achieve the above object, the utility model discloses a technical scheme be:

an accurate positioning system for a immersed tube pipe joint connector comprises a positioning jack mechanism arranged in a combination cavity of the immersed tube pipe joint connector, wherein the positioning jack mechanism comprises a plurality of jacks and a conveying mechanism, the conveying mechanism comprises a gantry hanger used for lifting the jacks between the immersed tube pipe joint and the combination cavity, a rail transport vehicle used for transporting the jacks in the combination cavity, and a travelling crane rail matched with the rail transport vehicle; the gantry hanging frame comprises two support frames, a cross beam moving track and a hoisting hoist, wherein the cross beam moving track is arranged between the top ends of the two support frames, the hoisting hoist is used for hoisting the jack, the hoisting hoist is connected with the cross beam moving track in a sliding mode, the two support frames are respectively arranged in the immersed tube joint and the combination cavity, and the cross beam moving track penetrates through a manhole door of a sealing door at the end of the immersed tube joint; the vertical height direction of the combination cavity is used as the vertical direction, the horizontal length direction of the combination cavity is used as the horizontal direction, the horizontal width direction of the combination cavity is used as the longitudinal direction, the travelling crane rail is a straight rail arranged along the horizontal direction, and the travelling crane rail is fixedly arranged on the bottom surface of the combination cavity; the rail transport vehicle with be equipped with the first locking part that is used for fixed relative position between the two between the driving track, the rail transport vehicle include the automobile body and with driving track roll complex wheel, the automobile body is including being used for fixed connection the jack is in order to incite somebody to action the piston axis of jack is fixed in fore-and-aft jack fixed subassembly.

Preferably, the gantry crane comprises a driving mechanism for driving the hoisting hoist to slide on the beam moving track; the driving track comprises a first height adjusting component for adjusting the vertical height of the driving track, and the rail transport vehicle comprises wheels for adjusting the rail transport vehicle and a second height adjusting component for adjusting the vertical height difference of the driving track.

Preferably, the first height adjusting part is a first height adjusting supporting leg arranged on the travelling crane track, and the bottom surface of the first height adjusting supporting leg is fixedly arranged on the bottom surface of the combining cavity; the second height adjusting part comprises a second height adjusting supporting leg arranged on the rail transport vehicle, and the bottom surface of the second height adjusting supporting leg can be supported on the travelling crane rail.

Preferably, the jack fixing assembly comprises a bracket supportable below the side wall of the jack, and a second locking member for fixing the relative position between the bracket and the jack, wherein the bracket is arranged along the longitudinal direction to locate the central axis of the piston of the jack in the longitudinal direction.

Preferably, the positioning jack mechanism comprises a vertical positioning unit, a horizontal positioning unit and a hydraulic control mechanism for controlling the jacks, the vertical positioning unit is arranged close to the vertical edge of the combining cavity, the vertical positioning unit comprises a plurality of jacks vertically arranged and a vertical mounting frame assembly for fixing cylinder bodies of the jacks vertically arranged, and the bottom of the vertical mounting frame assembly is fixedly mounted in the combining cavity; the transverse positioning unit comprises a plurality of jacks which are arranged along the transverse direction, the rail transport vehicles and the jacks of the transverse positioning unit are arranged in a one-to-one correspondence manner, when the positioning jack mechanism works, the jacks of the transverse positioning unit are fixedly arranged on the rail transport vehicles which are arranged in a corresponding manner, the jacks of the transverse positioning unit are arranged along the travelling rail, and the rail transport vehicles are fixed on the travelling rail through a first locking component; and the pistons of the jacks are arranged close to the end sealing doors of the immersed tube pipe sections and can longitudinally push the end sealing doors.

Preferably, one end of the vertical positioning unit is arranged close to one end of the horizontal positioning unit to form an L-shaped positioning jack mechanism.

Preferably, the jack comprises a cylinder body, a piston in sliding sealing fit with the inner wall of the cylinder body, a piston rod, and a first oil port and a second oil port which are arranged on the cylinder body, one end of the cylinder body is arranged as a cylinder bottom, the other end of the cylinder body is arranged as a cylinder opening, the two ends of the piston rod are respectively and fixedly provided with the piston and a rod head plug body, the radial sizes of the piston and the rod head plug body are both larger than the radial size of the piston rod, the cylinder opening is sleeved on the rod head plug body, and the rod head plug body and the cylinder opening are in sliding sealing fit along the axial direction of the piston rod; the inner wall of the cylinder body is fixedly provided with a sealing ring, the sealing ring and the cylinder bottom are respectively arranged at two sides of the piston, the sealing ring is sleeved on the piston rod, and the piston rod and the sealing ring are in sliding sealing fit along the axial direction of the piston rod; a first oil chamber is formed by a space surrounded by the inner wall of the cylinder body, the sealing ring and the rod head plug body, a second oil chamber is formed by a space surrounded by the inner wall of the cylinder body, the piston and the sealing ring, and a third oil chamber is formed by a space surrounded by the inner wall of the cylinder body, the cylinder bottom and the piston; the first oil port is communicated with the first oil chamber and the third oil chamber, and the second oil port is communicated with the second oil chamber; the cylinder body, the cylinder body opening part, the piston rod, the sealing ring and the rod head plug body are coaxially arranged on the same axis, and the outer side wall of the rod head plug body is cylindrical; the piston rod is provided with an elastic sealing element for sealing a gap between the piston and the inner wall of the cylinder body, the sealing ring is internally provided with an elastic sealing element for sealing a gap between the piston rod and the sealing ring, and the rod head plug body is provided with an elastic sealing element for sealing the rod head plug body and the opening part of the cylinder body.

Preferably, the vertical mounting frame assembly comprises a plurality of rectangular frames, and the rectangular frames are arranged in one-to-one correspondence with the jacks of the vertical positioning unit; the top surface and the bottom surface of the cuboid frame are both set to be horizontal setting surfaces, the cuboid frame is sleeved outside the cylinder body of the jack which is correspondingly arranged and is fixedly connected with the cylinder body, the cuboid frame also comprises a plurality of positioning butt joint components, each positioning butt joint component comprises a vertically arranged slot and a vertical inserted bar matched with the slot, the slots and the vertical inserted bars are arranged in a one-to-one correspondence manner, the slots are fixedly arranged on one horizontal setting surface of the cuboid frame, the vertical inserted bars which are correspondingly arranged with the slots are fixedly arranged on the other horizontal setting surface of the cuboid frame, the central axes of the vertical inserted bars and the slots which are corresponding to the vertical inserted bars are positioned on the same vertical straight line, a plurality of the cuboid frames are sequentially stacked and connected from top to bottom along the vertical direction, and the adjacent two cuboid frames are connected through the positioning butt joint components, the cuboid frame arranged at the bottommost layer is fixedly arranged on the combination cavity.

Preferably, the conveying mechanism further comprises a transport trolley arranged in the immersed tube section.

Compared with the prior art, the beneficial effects of the utility model are that: provides an accurate positioning system for a pipe joint connector of a immersed tube. The accurate positioning system of immersed tube coupling joint can be convenient realize transporting and installing of positioning jack mechanism, make things convenient for immersed tube coupling joint positioning construction, and be favorable to improving the efficiency of construction.

Drawings

FIG. 1 is a schematic structural diagram of a conveying mechanism according to an embodiment;

FIG. 2 is a schematic diagram of a state of a lifting and positioning jack mechanism of the conveying mechanism according to the embodiment;

FIG. 3 is a schematic structural view of a gantry crane according to an embodiment;

FIG. 4 is a schematic structural diagram of a rail transport vehicle according to an embodiment;

FIG. 5 is a schematic structural diagram of a driving rail according to an embodiment;

FIG. 6 is a schematic structural diagram of a jack according to an embodiment;

FIG. 7 is a schematic structural diagram of the embodiment of the jack with the piston rod retracted;

FIG. 8 is a schematic structural diagram of an embodiment of a positioning jack mechanism;

FIG. 9 is an enlarged view of portion A of FIG. 8;

FIG. 10 is a schematic view showing an assembled state of a rectangular parallelepiped frame and a jack according to the embodiment;

in the figure, 1-immersed tube pipe joint, 11-end sealing door, 12-manhole door, 2-combination cavity, 3-jack, 31-piston, 32-cylinder body, 321-first oil port, 322-second oil port, 323-first oil transportation pore canal, 33-piston rod, 34-cylinder bottom, 35-rod head plug body, 351-saddle, 36-sealing ring, 37-first oil cavity, 38-second oil cavity, 39-third oil cavity, 310-locking nut, 4-gantry hanger, 41-support frame, 42-crossbeam moving track, 43-hoisting gourd, 5-track transport vehicle, 51-wheel, 52-second heightening support leg, 53-bracket, 6-running track, 61-first heightening support leg, 62-connecting plate, 63-pin shaft, 7-vertical positioning unit, 71-vertical mounting frame assembly, 72-cuboid frame, 73-slot, 74-vertical inserted rod, 75-limiting plate, 751-bayonet, 8-transverse positioning unit and 9-transport trolley.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "left", "right", "front", "rear", etc. indicate the positional relationship based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in the figure, the accurate positioning system for the joints of the immersed tube joints comprises a positioning jack mechanism arranged in a joint cavity 2 of the joints of the immersed tube joints 1, wherein the positioning jack mechanism comprises a plurality of jacks 3 and a conveying mechanism, and the conveying mechanism comprises a gantry hanger 4 for lifting the jacks 3 between the immersed tube joints 1 and the joint cavity 2, a rail transport vehicle 5 for transporting the jacks 3 in the joint cavity 2 and a travelling crane rail 6 matched with the rail transport vehicle 5; the gantry crane 4 comprises two support frames 41, a beam moving track 42 arranged between the top ends of the two support frames 41, and a hoisting hoist 43 for hoisting the jack 3, wherein the hoisting hoist 43 is slidably connected with the beam moving track 42, the two support frames 41 are respectively arranged in the immersed tube pipe joint 1 and the combination cavity 2, and the beam moving track 42 penetrates through a manhole door 12 of a sealing door 11 at the end of the immersed tube pipe joint 1; the vertical height direction of the combining cavity 2 is used as the vertical direction, the horizontal length direction of the combining cavity 2 is used as the horizontal direction, the horizontal width direction of the combining cavity 2 is used as the longitudinal direction, the travelling crane rail 6 is a straight rail arranged along the horizontal direction, and the travelling crane rail 6 is fixedly installed on the bottom surface of the combining cavity 2; the rail transport vehicle 5 with be equipped with the first locking part that is used for fixed relative position between the two between driving track 6, rail transport vehicle 5 include the automobile body and with driving track 6 roll complex wheel 51, the automobile body is including being used for fixed connection jack 3 is in order to incite somebody to action jack 3's piston 31 axis is fixed in fore-and-aft jack fixed subassembly.

The method for accurately adjusting the immersed tube joint connector by adopting the system for accurately adjusting the immersed tube joint connector comprises the following steps:

1) after the drainage of the combination cavity 2 at the joint of the two immersed tube pipe joints 1 is finished, opening a manhole door 12 on the end sealing door 11, installing the gantry hanger 4 between one immersed tube pipe joint 1 and the combination cavity 2, respectively arranging two support frames 41 of the gantry hanger 4 in the immersed tube pipe joint 1 and the combination cavity 2, and enabling the beam moving track 42 to penetrate through the manhole door 12;

2) the gantry hanging bracket 4 is adopted to hoist the rail transport vehicle 5 and the travelling crane rail 6 from the immersed tube pipe joint 1 to the combination cavity 2 through the manhole door 12, the rail transport vehicle 5 and the travelling crane rail 6 are installed in the combination cavity 2, and the travelling crane rail 6 is transversely arranged and fixedly installed on the bottom surface of the combination cavity 2;

3) hoisting the position-adjusting jack mechanism from the immersed tube pipe joint 1 to the combination cavity 2 by using the gantry hanger 4, and installing the jack 3 after conveying the jack 3 to a position close to a preset installation position in the combination cavity 2 by using a rail transport vehicle 5; the position-adjusting jack mechanism is used for pushing the jack 3 on the bottom edge of the end sealing door 11 and is fixed on the rail transport vehicle 5 through a jack fixing assembly, so that the piston 31 of the jack 3 can push the end sealing door 11 along the longitudinal direction, after the rail transport vehicle 5 is used for pushing the jack 3 on the bottom edge of the end sealing door 11 and is conveyed to a preset installation position, the first locking part fixes the relative position between the rail transport vehicle 5 and the travelling rail 6, and then the position-adjusting jack mechanism is used for pushing the jack 3 on the bottom edge of the end sealing door 11 to be installed in a positioning mode.

The transport and installation of the positioning jack mechanism can be conveniently realized through the accurate positioning system and the accurate positioning method of the immersed tube pipe joint connector, the positioning construction of the immersed tube pipe joint connector is more convenient, and the construction efficiency is favorably improved. In this system, rail transport car 5 with the setting of driving track 6 has not only made things convenient for transporting of jack 3 in joint chamber 2, can also regard as being used for the top simultaneously the end seals 11 bases the installing support of jack 3, rail transport car 5 will be used for the top end seals 11 bases jack 3 transports to its default mounted position, can realize through jack fixed subassembly and first locking member jack 3 is in the fixed mounting of joint chamber 2, makes things convenient for the installation use of the positioning jack mechanism of this system more, and can reduce the installation space that positioning system occupy in joint chamber 2.

Specifically, the gantry crane 4 includes a driving mechanism for driving the hoisting hoist 43 to slide on the beam moving track 42. The driving mechanism can be any existing gantry crane driving mechanism capable of driving the hoisting hoist 43.

Specifically, the running rail 6 includes a first height adjustment component for adjusting the vertical height of the running rail 6. The vertical height position of the travelling crane track 6 can be adjusted through the first height adjusting part, the position, fixedly mounted on the travelling crane track 6, of the jack 3 used for pushing the bottom edge of the end sealing door 11 is further adjusted, and therefore the adjustment of the vertical height of the pushing position of the end sealing door 11 on the bottom edge of the jack 3 is achieved, and the jack is more convenient to adapt to different construction conditions.

Specifically, the first height adjusting part may be any existing structure capable of adjusting the height of the rail, for example, the support leg of the running rail 6 is a first height adjusting support leg 61 as the first height adjusting part, and the bottom surface of the first height adjusting support leg 61 is fixedly installed on the bottom surface of the combining cavity 2.

Specifically, the rail vehicle 5 includes a second height adjusting component for adjusting a vertical height difference between the wheel 51 of the rail vehicle 5 and the running rail 6. The wheel 51 of the rail transport vehicle 5 and the vertical difference in height of the running rail 6 can be adjusted through the second height adjusting component, the position of the jack 3 fixedly mounted on the rail transport vehicle 5 and used for pushing the bottom edge of the end sealing door 11 is further adjusted, and therefore the adjustment of the vertical height of the pushing position of the end sealing door 11 at the end sealing door 3 is achieved, and the jack is more convenient to adapt to different construction conditions.

Specifically, the second height adjusting part may be any existing structure capable of adjusting the height difference between the wheel 51 of the rail transportation vehicle 5 and the running rail 6, for example, the second height adjusting part includes a second height adjusting support leg 52 mounted on the sidewall of the vehicle body of the rail transportation vehicle 5, and the bottom surface of the second height adjusting support leg 52 may be supported on the running rail 6.

Specifically, the first height-adjusting support leg 61 and the second height-adjusting support leg 52 can be set to be any existing height-adjustable support leg structure, and the first height-adjusting support leg 61 and the second height-adjusting support leg 52 are set to be multiple.

Specifically, the jack fixing assembly comprises a bracket 53 which can be supported below the side wall of the jack 3, and a second locking component for fixing the relative position between the bracket 53 and the jack 3, wherein the bracket 53 is arranged along the longitudinal direction to locate the central axis of the piston 31 of the jack 3 in the longitudinal direction.

Specifically, the first locking member and the second locking member may be any locking structure capable of fixing a relative positional relationship between the two members. For example, the first locking component includes two connecting plates 62 respectively arranged on the rail transport vehicle 5 and the running rail 6, the two connecting plates 62 are provided with through pin holes, and the two pin holes are connected through a pin 63 to fix the relative positions of the rail transport vehicle 5 and the running rail 6; the second locking component comprises two screw holes correspondingly formed in the bracket 53 and the cylinder body 32 of the jack 3, and the two screw holes are fixedly connected through a fixing bolt.

Specifically, the positioning jack mechanism comprises a vertical positioning unit 7, a horizontal positioning unit 8 and a hydraulic control mechanism for controlling the jacks, the vertical positioning unit 7 is arranged close to the vertical edge of the combining cavity 2, the vertical positioning unit 7 comprises a plurality of jacks 3 vertically arranged, and a vertical mounting frame assembly 71 for fixing cylinder bodies 32 of the plurality of jacks 3 vertically arranged, and the bottom of the vertical mounting frame assembly 71 is fixedly mounted in the combining cavity 2; the transverse positioning unit 8 comprises a plurality of jacks 3 which are arranged transversely, the rail transport vehicles 5 are arranged in one-to-one correspondence with the jacks 3 of the transverse positioning unit 8, when the positioning jack mechanism works, the jacks 3 of the transverse positioning unit 8 are fixedly arranged on the rail transport vehicles 5 which are arranged correspondingly, the jacks 3 of the transverse positioning unit 8 are arranged along the travelling crane rail 6, and the rail transport vehicles 5 are fixed on the travelling crane rail 6 through first locking components; and the pistons 31 of the jacks 3 are arranged close to the end sealing doors 11 of the immersed tube pipe sections 1 and can push the end sealing doors 11 along the longitudinal direction. The positioning jack mechanism comprises a vertical positioning unit 7 and a horizontal positioning unit 8, the vertical edge and the horizontal base of the end sealing door 11 can be pushed respectively by the vertical positioning unit 7 and the horizontal positioning unit 8, and meanwhile, the pushing states of the jacks 3 of the vertical positioning unit 7 and the horizontal positioning unit 8 can be adjusted by a hydraulic control mechanism, so that accurate positioning of the joint of the immersed tube pipe joint 1 can be realized conveniently, in the above embodiment, the jack 3 of the horizontal positioning unit 8 is used for pushing the end sealing door 11 base, the jack 3 can be used for positioning and mounting the horizontal positioning unit 8 by utilizing the travelling crane track 6 and the rail transport vehicle 5 conveniently.

Specifically, one end of the vertical positioning unit 7 is arranged close to one end of the horizontal positioning unit 8 to form an L-shaped positioning jack mechanism.

Specifically, the jack 3 includes a cylinder 32, a piston 31 in sliding sealing fit with an inner wall of the cylinder 32, a piston rod 33, and a first oil port 321 and a second oil port 322 opened in the cylinder 32, one end of the cylinder 32 is set as a cylinder bottom 34, the other end is set as a cylinder opening, two ends of the piston rod 33 are respectively and fixedly mounted with the piston 31 and a rod head plug body 35, radial dimensions of the piston 31 and the rod head plug body 35 are both greater than a radial dimension of the piston rod 33, the cylinder opening is sleeved on the rod head plug body 35, and the rod head plug body 35 and the cylinder opening are in sliding sealing fit along an axial direction of the piston rod; the inner wall of the cylinder body 32 is fixedly provided with a sealing ring 36, the sealing ring 36 and the cylinder bottom 34 are respectively arranged at two sides of the piston 31, the sealing ring 36 is sleeved on the piston rod 33, and the piston rod 33 and the sealing ring 36 are in sliding sealing fit along the axial direction of the piston rod 33; a first oil chamber 37 is formed by a space surrounded by the inner wall of the cylinder body 31, the sealing ring 36 and the club head plug body 35, a second oil chamber 38 is formed by a space surrounded by the inner wall of the cylinder body 31, the piston 31 and the sealing ring 36, and a third oil chamber 39 is formed by a space surrounded by the inner wall of the cylinder body 31, the cylinder bottom 34 and the piston 31; the first oil port 321 communicates the first oil chamber 37 and the third oil chamber 39, and the second oil port 322 communicates the second oil chamber 38; the cylinder 32, the cylinder opening, the piston 31, the piston rod 33, the sealing ring 36 and the club head plug 35 are coaxially arranged on the same axis, and the outer side wall of the club head plug 35 is cylindrical; the piston rod 33 is provided with an elastic sealing element for sealing a gap between the piston 31 and the inner wall of the cylinder body 32, the sealing ring 36 is internally provided with an elastic sealing element for sealing a gap between the piston rod 33 and the sealing ring 36, and the club head plug body 35 is provided with an elastic sealing element for sealing the club head plug body 35 and the opening part of the cylinder body.

In the jack 3 with the structure, the first oil chamber 37 and the third oil chamber 39 are jacking working chambers of the jack 3 and are connected with the first oil port 321, and when the jack 3 jacks, oil is fed into the two oil chambers simultaneously, so that the jacking stressed area of the jack 3 can be enlarged by the action sum, and the purpose of increasing the thrust of the jack 3 is realized. The two cavities are inlet cavities when the piston rod 33 extends out, and oil return cavities when the piston rod 33 retracts. The second oil chamber 38 is a retraction chamber of the jack 3 and is connected with the second oil port 2, and when the pushing operation of the jack 3 is completed, the second oil chamber 38 is filled with oil to push the piston rod 33 to retract into the cylinder body 32. Through the improvement to 3 structures of jack, can realize the promotion of 3 jacking forces of jack under the prerequisite that do not increase 3 volumes of jack and dead weight basically, be favorable to the positioning operation more.

Specifically, jack 3 is still including fixed the piston rod 33 position prevents its auto-lock structure that contracts, the auto-lock structure is including locating the external screw thread of pole head cock body 35 lateral wall to and the cover is located lock nut 310 on the pole head cock body 35, lock nut 310's internal thread with the external screw thread adaptation of pole head cock body 35, lock nut 310 locates outside the cylinder body 32 and can with cylinder body opening butt. When the piston rod 33 extends out to reach the target position, the self-locking structure is arranged, the position of the piston rod 33 is fixed through the self-locking structure, the piston rod 33 can be prevented from retracting in the pushing process, and equipment faults are reduced.

Specifically, a saddle 351 is disposed on a force application surface of the head plug body 35 for pushing the force-applied object, and the saddle 351 is a rotational structure capable of sliding and rotating relative to the force application surface. Saddle 351 is used for the contact of pole head cock body 35 and atress object, has the effect that the self-calibration was made level for pole head cock body 35 is more abundant with the contact of atress object, and the atress is more even.

Specifically, the force application surface is provided with an arc concave surface, the contact surface between the saddle 351 and the head plug body 35 is provided with an arc convex surface matched with the arc concave surface, and the saddle 351 can slide along the arc concave surface, so that the saddle 351 can adjust the flatness of the contact surface between the head plug body 35 and the force-bearing object through sliding and rotating.

Specifically, the elastic sealing elements are all rubber sealing rings.

Specifically, the cylinder body 32 is provided with a first oil delivery duct 323 and a second oil delivery duct, the first oil port 321 is communicated with the first oil chamber 37 and the third oil chamber 39 through the first oil delivery duct 323, and the second oil port 322 is communicated with the second oil chamber 38 through the second oil delivery duct.

Specifically, the vertical mounting frame assembly 71 includes a plurality of rectangular parallelepiped frames 72, and the rectangular parallelepiped frames 72 are arranged in one-to-one correspondence with the jacks 3 of the vertical positioning unit 7; the top surface and the bottom surface of the rectangular parallelepiped frame 72 are both set as horizontal setting surfaces, the rectangular parallelepiped frame 72 is sleeved outside the cylinder body 32 of the jack 3 which is correspondingly arranged and is fixedly connected with the cylinder body 32, the rectangular parallelepiped frame 72 further comprises a plurality of positioning butt joint assemblies, each positioning butt joint assembly comprises a vertically-arranged slot 73 and a vertical inserted rod 74 matched with the slot 73, the slots 73 are arranged in one-to-one correspondence with the vertical inserted rods 74, the slots 73 are fixedly arranged on one horizontal setting surface of the rectangular parallelepiped frame 72, the vertical inserted rods 74 correspondingly arranged with the slots 73 are fixedly arranged on the other horizontal setting surface of the rectangular parallelepiped frame 72, the central axes of the vertical inserted rods 74 and the slots 73 corresponding to the vertical inserted rods are positioned on the same vertical straight line, and the rectangular parallelepiped frame 72 is stacked and sequentially connected from top to bottom along the vertical direction, and two adjacent cuboid frames 72 are connected through the positioning butt joint assembly, and the cuboid frames 72 arranged at the bottommost layer are fixedly arranged on the combination cavity.

The vertical positioning unit 7 comprises a plurality of jacks 3 which are sequentially stacked and connected from top to bottom and provided with cuboid frames 72, the cuboid frames 72 are adjacent to each other two layers, the connection of the two jacks 3 is realized through the insertion of slots 73 of butt joint surfaces of the cuboid frames 72 and vertical insertion rods 74, and the jacks 3 on the upper layer and the jacks on the lower layer are stably connected under the action of gravity. Through the setting of cuboid frame 72 that has the location butt joint subassembly, the realization that can be convenient a plurality of jacks 3 accurate positioning combination assembly constitute vertical positioning unit 7, can be convenient assemble the application of force face with a plurality of jacks 3 in the coplanar to through the thrust of the stack increase vertical positioning unit 7 of jack 3, can improve device assembly efficiency and efficiency of construction.

Specifically, slot 73 is established to four, four slot 73 is fixed mounting respectively in four corners of cuboid frame 72 top surface, slot 73 opening sets up upwards, vertical inserted bar 74 is established to four, four vertical inserted bar 74 is fixed mounting respectively in four corners of cuboid frame 72 bottom surface, vertical inserted bar 74 certainly the vertical downward setting in cuboid frame 72 bottom surface. When the vertical positioning unit 7 is assembled, the vertical insertion rod 74 of the cuboid frame 72 on the upper layer is inserted into the insertion slot 73 of the cuboid frame 72 on the lower layer, so that the connection of the two cuboid frames 72 is realized.

Specifically, cuboid frame 72 with jack 3's adapting unit includes fixed mounting limiting plate 75 in the cuboid frame 72, the joint has been seted up to limiting plate 75 the bayonet 751 of cylinder body 32 outer wall, bayonet 751 cover is located outside the cylinder body 32 outer wall. Adopt limiting plate 75 can be with jack 3 and cuboid frame 72 fixed connection, connect cuboid frame 72 with the adapting unit of jack 3 except adopting limiting plate 75 structure, also can adopt arbitrary fixed connection structure to connect jack 3 and cuboid frame 72, limiting plate 75 can adopt arbitrary fixed connection mode fixed mounting on cuboid frame 72, if limiting plate 75 can weld on cuboid frame 72.

Specifically, the conveying mechanism further comprises a transport trolley 9 arranged in the immersed tube pipe joint 1. The transport trolley 9 arranged in the immersed tube pipe joint 1 can be used for transporting the structural device forming the position-adjusting jack mechanism in the immersed tube pipe joint 1, so that the position-adjusting jack mechanism can be transported and installed more conveniently.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (9)

1. An accurate positioning system for a immersed tube pipe joint connector comprises a positioning jack mechanism arranged in a combination cavity of the immersed tube pipe joint connector, wherein the positioning jack mechanism comprises a plurality of jacks and is characterized by further comprising a conveying mechanism, the conveying mechanism comprises a gantry hanger used for lifting the jacks between the immersed tube pipe joint and the combination cavity, a rail transport vehicle used for transporting the jacks in the combination cavity, and a travelling crane rail matched with the rail transport vehicle; the gantry hanging frame comprises two support frames, a cross beam moving track and a hoisting hoist, wherein the cross beam moving track is arranged between the top ends of the two support frames, the hoisting hoist is used for hoisting the jack, the hoisting hoist is connected with the cross beam moving track in a sliding mode, the two support frames are respectively arranged in the immersed tube joint and the combination cavity, and the cross beam moving track penetrates through a manhole door of a sealing door at the end of the immersed tube joint; the vertical height direction of the combination cavity is used as the vertical direction, the horizontal length direction of the combination cavity is used as the horizontal direction, the horizontal width direction of the combination cavity is used as the longitudinal direction, the travelling crane rail is a straight rail arranged along the horizontal direction, and the travelling crane rail is fixedly arranged on the bottom surface of the combination cavity; the rail transport vehicle with be equipped with the first locking part that is used for fixed relative position between the two between the driving track, the rail transport vehicle include the automobile body and with driving track roll complex wheel, the automobile body is including being used for fixed connection the jack is in order to incite somebody to action the piston axis of jack is fixed in fore-and-aft jack fixed subassembly.

2. The system for accurately positioning the immersed tube joint connector according to claim 1, wherein the gantry hanger comprises a driving mechanism for driving the hoisting hoist to slide on the beam moving track; the driving track comprises a first height adjusting component for adjusting the vertical height of the driving track, and the rail transport vehicle comprises wheels for adjusting the rail transport vehicle and a second height adjusting component for adjusting the vertical height difference of the driving track.

3. The system of claim 2, wherein the first height adjustment component is configured as a first height adjustment support leg mounted on the running rail, and a bottom surface of the first height adjustment support leg is fixedly mounted on a bottom surface of the combining cavity; the second height adjusting part comprises a second height adjusting supporting leg arranged on the rail transport vehicle, and the bottom surface of the second height adjusting supporting leg can be supported on the travelling crane rail.

4. The system of claim 1, wherein the jack mount assembly comprises a bracket supportable under the jack side wall, and a second locking member for fixing the relative position between the bracket and the jack, the bracket being disposed in the longitudinal direction to position the central axis of the piston of the jack in the longitudinal direction.

5. The system for accurately positioning a joint of a immersed tube and a pipe joint as claimed in claim 1, wherein the positioning jack mechanism comprises a vertical positioning unit, a horizontal positioning unit and a hydraulic control mechanism for controlling the jacks, the vertical positioning unit is arranged close to the vertical edge of the combining cavity, the vertical positioning unit comprises a plurality of jacks which are vertically arranged and a vertical mounting frame assembly for fixing the cylinders of the plurality of jacks which are vertically arranged, and the bottom of the vertical mounting frame assembly is fixedly installed in the combining cavity; the transverse positioning unit comprises a plurality of jacks which are arranged along the transverse direction, the rail transport vehicles and the jacks of the transverse positioning unit are arranged in a one-to-one correspondence manner, when the positioning jack mechanism works, the jacks of the transverse positioning unit are fixedly arranged on the rail transport vehicles which are arranged in a corresponding manner, the jacks of the transverse positioning unit are arranged along the travelling rail, and the rail transport vehicles are fixed on the travelling rail through a first locking component; and the pistons of the jacks are arranged close to the end sealing doors of the immersed tube pipe sections and can longitudinally push the end sealing doors.

6. The system of claim 5, wherein one end of the vertical positioning unit is disposed adjacent to one end of the horizontal positioning unit to form an L-shaped positioning jack mechanism.

7. The system of claim 5, wherein the jack comprises a cylinder, a piston in sliding sealing fit with the inner wall of the cylinder, a piston rod, and a first oil port and a second oil port formed in the cylinder, one end of the cylinder is provided with a cylinder bottom, the other end of the cylinder is provided with a cylinder opening, two ends of the piston rod are respectively and fixedly provided with the piston and the rod head plug body, the radial dimensions of the piston and the rod head plug body are both larger than the radial dimension of the piston rod, the cylinder opening is sleeved on the rod head plug body, and the rod head plug body and the cylinder opening are in sliding sealing fit along the axial direction of the piston rod; the inner wall of the cylinder body is fixedly provided with a sealing ring, the sealing ring and the cylinder bottom are respectively arranged at two sides of the piston, the sealing ring is sleeved on the piston rod, and the piston rod and the sealing ring are in sliding sealing fit along the axial direction of the piston rod; a first oil chamber is formed by a space surrounded by the inner wall of the cylinder body, the sealing ring and the rod head plug body, a second oil chamber is formed by a space surrounded by the inner wall of the cylinder body, the piston and the sealing ring, and a third oil chamber is formed by a space surrounded by the inner wall of the cylinder body, the cylinder bottom and the piston; the first oil port is communicated with the first oil chamber and the third oil chamber, and the second oil port is communicated with the second oil chamber; the cylinder body, the cylinder body opening part, the piston rod, the sealing ring and the rod head plug body are coaxially arranged on the same axis, and the outer side wall of the rod head plug body is cylindrical; the piston rod is provided with an elastic sealing element for sealing a gap between the piston and the inner wall of the cylinder body, the sealing ring is internally provided with an elastic sealing element for sealing a gap between the piston rod and the sealing ring, and the rod head plug body is provided with an elastic sealing element for sealing the rod head plug body and the opening part of the cylinder body.

8. The system for accurately positioning the joint of the immersed tube and the pipe joint as claimed in claim 5, wherein the vertical mounting frame assembly comprises a plurality of rectangular frames, and the rectangular frames are arranged in one-to-one correspondence with the jacks of the vertical positioning unit; the top surface and the bottom surface of the cuboid frame are both set to be horizontal setting surfaces, the cuboid frame is sleeved outside the cylinder body of the jack which is correspondingly arranged and is fixedly connected with the cylinder body, the cuboid frame also comprises a plurality of positioning butt joint components, each positioning butt joint component comprises a vertically arranged slot and a vertical inserted bar matched with the slot, the slots and the vertical inserted bars are arranged in a one-to-one correspondence manner, the slots are fixedly arranged on one horizontal setting surface of the cuboid frame, the vertical inserted bars which are correspondingly arranged with the slots are fixedly arranged on the other horizontal setting surface of the cuboid frame, the central axes of the vertical inserted bars and the slots which are corresponding to the vertical inserted bars are positioned on the same vertical straight line, a plurality of the cuboid frames are sequentially stacked and connected from top to bottom along the vertical direction, and the adjacent two cuboid frames are connected through the positioning butt joint components, the cuboid frame arranged at the bottommost layer is fixedly arranged on the combination cavity.

9. The system of claim 1, wherein the transport mechanism further comprises a transport trolley disposed within the immersed tube joint.

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