CN110802540B - Screw rod screwing and clamping integrated device - Google Patents

Screw rod screwing and clamping integrated device Download PDF

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Publication number
CN110802540B
CN110802540B CN201910990248.XA CN201910990248A CN110802540B CN 110802540 B CN110802540 B CN 110802540B CN 201910990248 A CN201910990248 A CN 201910990248A CN 110802540 B CN110802540 B CN 110802540B
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China
Prior art keywords
flange
screw
positioning
integrated device
driving
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Active
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CN201910990248.XA
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Chinese (zh)
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CN110802540A (en
Inventor
孙飞翔
巩海龙
谭毅
朱磊
胡建强
陈嘉杰
张飞
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China General Nuclear Power Corp
China Nuclear Power Technology Research Institute Co Ltd
CGN Power Co Ltd
Lingdong Nuclear Power Co Ltd
Original Assignee
China General Nuclear Power Corp
China Nuclear Power Technology Research Institute Co Ltd
CGN Power Co Ltd
Lingdong Nuclear Power Co Ltd
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Application filed by China General Nuclear Power Corp, China Nuclear Power Technology Research Institute Co Ltd, CGN Power Co Ltd, Lingdong Nuclear Power Co Ltd filed Critical China General Nuclear Power Corp
Priority to CN201910990248.XA priority Critical patent/CN110802540B/en
Publication of CN110802540A publication Critical patent/CN110802540A/en
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Publication of CN110802540B publication Critical patent/CN110802540B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means

Abstract

The invention relates to a screw rod screwing and clamping integrated device, which comprises a driving mechanism, a screw rod clamping mechanism and a clamping mechanism, wherein the driving mechanism is used for driving the whole device to rotate; the connecting mechanism is connected with the driving mechanism and is used for transmitting the torque generated by the driving mechanism and prolonging the length of the whole device; and the actuating mechanism is connected with one end of the connecting mechanism, which is far away from the driving mechanism, and is used for clamping and driving the screw rod to rotate. The screw screwing and clamping integrated device has a guiding function in deep water and in an irradiation environment, shortens the operation time of centering the screw, is high in efficiency, is safe and reliable in clamping and carrying the screw, guarantees safe and smooth replacement of the control rod guide cylinder, adopts a modular design of parts, can be commonly used with other tools, and reduces the number of tools.

Description

Screw rod screwing and clamping integrated device
Technical Field
The invention relates to the technical field of clamping devices, in particular to a screw screwing and clamping integrated device.
Background
In the pressurized water reactor nuclear power station founds the pond, the bolt needs to be dismantled out in the control rod guide cylinder change to during the bolt transport that will dismantle out appointed position, avoid this bolt to leave over in the reactor, cause the incident, at present, bolt grabbing device among the correlation technique has following problem: (1) the length of the device is generally fixed, and the device cannot be used in a lengthened way; (2) the clamping of the bolts in the deep water environment is unreliable, and the risk of losing the bolts in the transportation process exists; (3) the device is inconvenient to align the bolt and has low efficiency; (4) it is impossible to carry the steel sheet in a state where the bolt is clamped.
Therefore, a device for clamping and transporting the bolt in deep water and in an irradiation environment is needed.
Disclosure of Invention
The invention aims to provide an improved screw screwing and clamping integrated device.
The technical scheme adopted by the invention for solving the technical problems is as follows: a screw rod screwing and clamping integrated device is constructed, which comprises
The driving mechanism is used for driving the whole device to rotate;
the connecting mechanism is connected with the driving mechanism and is used for transmitting the torque generated by the driving mechanism and prolonging the length of the whole device; and
and the actuating mechanism is connected with one end of the connecting mechanism, which is far away from the driving mechanism, and is used for clamping and driving the screw rod to rotate.
Preferably, the driving mechanism comprises a positioning component of which the lower end is connected with the connecting mechanism; and
and the rotating assembly is arranged at the top of the positioning assembly.
Preferably, the rotating assembly is movably connected with the positioning assembly through an inserting positioning structure;
the inserting positioning structure comprises a positioning hole arranged on the rotating assembly and a positioning column arranged on the positioning assembly and matched with the positioning hole for limiting; alternatively, the first and second electrodes may be,
the inserting and positioning structure comprises a positioning hole arranged on the positioning component and a positioning column arranged on the rotating component and matched with and limited by the positioning hole.
Preferably, the positioning assembly comprises a first connecting tube;
the top of the first connecting pipe is provided with a connecting piece;
the rotating assembly comprises a sleeve which is positioned and sleeved on the connecting piece; and
a handle is disposed on the circumference of the sleeve and extends outward.
Preferably, the number of the handles is multiple, and the handles are arranged on the circumference of the sleeve in an axisymmetric manner;
the rotating assembly further comprises a force increasing arm which is sleeved on the periphery of the handle and used for increasing the force arm and further increasing the torque.
Preferably, the positioning assembly further comprises a lifting ring assembly disposed at a periphery of the first connecting pipe.
Preferably, the lifting ring assembly comprises a first retaining ring and a second retaining ring which are separately arranged on the first connecting pipe, a lifting ring seat which is rotatably sleeved on the periphery of the first connecting pipe and is positioned between the first retaining ring and the second retaining ring, two rotating shafts which extend outwards on the circumference of the lifting ring seat and are arranged with axes passing through the same diameter, and a lifting ring which is rotatably arranged on the two rotating shafts.
Preferably, a flange connecting structure is respectively arranged at one end of the driving mechanism connected with the connecting mechanism and one end of the connecting mechanism connected with the actuating mechanism;
the flange connecting structure comprises a flange with a plurality of open slots on the circumference, a flange seat matched with the flange, and a plurality of swing bolts which are arranged on the flange seat and can enter or exit the open slots in a rotating mode.
Preferably, the connecting mechanism comprises one or more unit connecting mechanisms, and the flange connecting structure is arranged between the adjacent unit connecting mechanisms.
Preferably, the actuating mechanism comprises a hollow pipe body arranged on the connecting mechanism, a driving piece arranged in the hollow pipe body, and a clamping jaw mechanism driven by the driving piece to reciprocate.
Preferably, the aperture of the open end of the hollow tube body is gradually reduced from inside to outside;
the clamping jaw mechanism comprises an elastic clamping jaw arranged in the hollow pipe body and a screwing piece arranged in the middle of the elastic clamping jaw;
when the elastic clamping jaw moves from inside to outside, the inner wall of the opening end of the hollow pipe body extrudes the elastic clamping jaw to enable the elastic clamping jaw to contract;
when the elastic clamping jaw moves from outside to inside, the inner wall of the opening end of the hollow pipe body loosens the extrusion on the elastic clamping jaw, so that the elastic clamping jaw is opened.
Preferably, the hollow pipe body comprises a third connecting pipe connected with the connecting mechanism, a first flange pipe connected with one end of the connecting mechanism far away from the third connecting pipe, a second flange pipe detachably connected with one end of the first flange pipe far away from the third connecting pipe, and a sheath detachably mounted on one end of the first flange pipe far away from the first flange pipe through threaded connection.
Preferably, the elastic clamping jaw comprises a cylindrical body, and a plurality of slots are formed in the side wall of one end part of the cylindrical body to form a plurality of clamping jaws;
the screwing piece is a hexagonal adapter.
Preferably, the driving member is a cylinder, and the elastic clamping jaw and the screwing member are fixedly arranged at the tail end of a piston rod of the cylinder.
The implementation of the invention has the following beneficial effects: the screw screwing and clamping integrated device has a guiding function in deep water and in an irradiation environment, shortens the operation time of centering the screw, is high in efficiency, is safe and reliable in clamping and carrying the screw, guarantees safe and smooth replacement of the control rod guide cylinder, adopts a modular design of parts, can be commonly used with other tools, and reduces the number of tools.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of the overall structure of the integrated screw-tightening and clamping device according to the present invention;
FIG. 2 is a schematic front view of a rotating assembly according to some embodiments of the present invention;
FIG. 3 is a schematic top view of a rotating assembly according to some embodiments of the present invention;
FIG. 4 is a schematic diagram of the construction of a force-increasing arm in accordance with some embodiments of the present invention;
FIG. 5 is a schematic structural diagram of a positioning assembly of one embodiment of the present invention;
FIG. 6 is a schematic bottom view of the first flange of FIG. 5;
FIG. 7 is a schematic structural view of a coupling mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic bottom view of the second flange of FIG. 7 (after engagement with the second flange mount);
FIG. 9 is a schematic structural diagram of an actuator according to one embodiment of the present invention;
FIG. 10 is a schematic partial cross-sectional view of an actuator according to one embodiment of the invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-10, a screw-screwing and clamping integrated device of the present invention, which can be used for screwing, clamping, transporting, etc. of a screw, includes a driving mechanism for driving the whole device to rotate; a connecting mechanism 3 connected with the driving mechanism and used for transmitting the torque generated by the driving mechanism and prolonging the length of the whole device; and the actuating mechanism 4 is connected with one end of the connecting mechanism 3, which is far away from the driving mechanism, and is used for clamping and driving the screw rod to rotate.
In this embodiment, the driving mechanism is the operation end and the upper portion of the device, and the connecting mechanism 3 and the actuating mechanism 4 are generally the actuating end and the lower portion. Have the direction function under the deep water and have the irradiation environment, shorten the operating time of centering screw rod, efficient to centre gripping and transport screw rod safety, reliable provide the guarantee smoothly for control rod guide cylinder changes safety, adopt part modularized design, can use with other instruments are general, reduce tool quantity.
As shown in fig. 2 to 5, the driving mechanism includes a positioning assembly 2 connected to a connecting mechanism 3 at a lower end thereof, and a rotating assembly 1 disposed on a top of the positioning assembly 2.
Referring to fig. 2 and 3, the rotating assembly 1 includes a sleeve 11, and a plurality of handles 12 extending outward from the circumference of the sleeve 11, wherein the handles 12 are axisymmetrically disposed on the circumference of the sleeve 11, and in some embodiments, the handles 12 are axisymmetrically disposed on four of the circumference of the sleeve 11 to form a cross structure for a worker to operate the handles 12 to apply and transmit torque to the integrated device. It is understood that the number of the handles 12 can be set according to actual requirements, and is not limited in particular. The sleeve 11 can be further provided with a hanging lug and the like so as to facilitate the hanging and placing of the rotating assembly 1 after being disassembled or the lifting and taking.
As shown in fig. 4, the rotating assembly 1 further includes a force-increasing arm 13 sleeved on the outer periphery of the handle 12 for increasing the force arm and further increasing the torque. The force-increasing arm 13 is made of a round steel pipe to increase the force arm and thus increase the torque, and in some embodiments, the length of the handle 12 may be machined to a suitable size without using the force-increasing arm 13.
In some embodiments, the rotating assembly 1 includes a positioning circular plate, and a plurality of handles 12 disposed around the positioning circular plate and extending outward, the handles 12 are axisymmetrically disposed around the circumference of the positioning circular plate, and in some embodiments, the handles 12 are axisymmetrically disposed around the circumference of the positioning circular plate to form a cross structure for a worker to operate the handles 12 to apply and transmit torque to the integrated device. It is understood that the number of the handles 12 can be set according to actual requirements, and is not limited in particular. The handle 12 may be sleeved with the force-increasing arm 13, which has a similar structure and will not be described in detail herein.
As shown in fig. 5, the positioning assembly 2 is detachably connected to the lower end of the rotating assembly 1, and includes a first connecting pipe 21, a connecting member 24 disposed at the top of the first connecting pipe 21, and a lifting ring assembly disposed at the periphery of the first connecting pipe 21.
The lifting ring assembly is used for providing a lifting interface for the device, can be lifted by field crane equipment to realize the carrying operation of the whole device, and is labor-saving, safe and reliable in the operation process. In this embodiment, the suspension ring assembly comprises a first retaining ring 22 and a second retaining ring 23 separately arranged on the first connecting pipe 21, a suspension ring seat 25 rotatably sleeved on the periphery of the first connecting pipe 21 and located between the first retaining ring 22 and the second retaining ring 23, two rotating shafts 26 extending outwards on the circumference of the suspension ring seat 25 and having axes passing through the same diameter, and a suspension ring 27 rotatably mounted on the two rotating shafts 26.
In some embodiments, a space for the suspension ring seat 25 is left between the first retaining ring 22 and the second retaining ring 23, so that the suspension ring seat 25 can axially move or circumferentially rotate on the first connecting pipe 21, and the suspension ring 27 can rotate around the rotating shaft 26 in a reciprocating manner. The rotating shaft 26 and the suspension ring seat 25 can be connected through threads, and welding points are added to ensure that the rotating shaft 26 cannot be loosened.
As shown in fig. 1-5, the rotating component 1 and the positioning component 2 are movably connected through a plugging positioning structure, so as to facilitate the assembly of the rotating component 1 and the positioning component 2. The inserting positioning structure comprises a positioning hole arranged on the rotating component 1 and a positioning column 241 arranged on the positioning component 2 and matched with and limited by the positioning hole. In this implementation, the locating hole that sets up on this runner assembly 1 can be the hexagon socket head that this sleeve 11 processed, and reference column 241 can be the outer hexagonal adapter head that processes out and above-mentioned hexagon socket head matched with on this connecting piece 24 top, or sets up the outer hexagonal bolt on this connection 24 top, and the two is in order to realize accurate cooperation, transmission moment of torsion.
It can be understood that the positions of the positioning hole and the positioning column of the inserting positioning structure can be changed, that is, the positioning hole is arranged on the positioning component 2, and the positioning column matched with the positioning hole for limiting is arranged on the rotating component 1. Similarly, the inner wall of the positioning hole can be processed with an inner hexagon, the rotating assembly 1 comprises the positioning circular plate, the positioning circular plate protrudes towards the center of one side of the positioning hole to form a positioning column matched with the sleeve, and the positioning column can be an outer hexagon adapter head, so that the positioning circular plate and the positioning hole can be accurately matched to transmit torque.
In this embodiment, flange connection structures are respectively disposed at the end of the connection mechanism 3 connected to the driving mechanism and the end of the connection mechanism 3 connected to the actuating mechanism 4, so that the driving mechanism, the connection mechanism and the actuating mechanism 4 can be quickly connected.
The flange connecting structure comprises a flange with a plurality of open slots on the circumference, a flange seat matched with the flange, and a plurality of swing bolts which are arranged on the flange seat and can rotate into or out of the open slots. It can be understood that the flange and the flange seat can be respectively provided with one end of the driving mechanism, the connecting mechanism and the executing mechanism 4 which are connected according to actual needs, as long as corresponding quick connection can be realized.
As shown in fig. 5 to 7, a flange connection structure in which the drive mechanism is connected to the connection mechanism 3 is taken as an example.
The driving mechanism further includes a first flange 28 disposed at the bottom of the first connecting pipe 21, and two first positioning circular holes 218 are disposed at the upper oblique angle of the first flange 28, and four first opening grooves 282 are disposed at equal intervals on the circumference. Of course, the number and the positions of the first positioning circular holes 218 and the first opening grooves 282 can be selectively adjusted according to the requirement, and are not limited herein.
The connecting mechanism 3 includes a second connecting pipe 31, a first flange seat 32 is disposed on the top of the second connecting pipe 31 and is matched with the first flange 28, and a first positioning pin 37 is disposed on the first flange seat 32 and is matched with the first positioning circular hole 218.
Four first swing bolts 34 are uniformly distributed on the circumference of the first flange seat 32 and are matched with the first open slot 282, the first swing bolts 34 are rotatably arranged on the first flange seat 32 through first pin shafts 33, so that the first swing bolts 34 can flexibly rotate around the first pin shafts 33 to enter or exit the first open slot 282, first lock nuts 35 and first limit nuts 36 are arranged on the first swing bolts 34 and are far away from one end of the first swing bolts 34, and the first limit nuts 36 can prevent the driving mechanism from being separated from the connecting mechanism 3 after the first lock nuts 35 are in threaded connection failure with the first swing bolts 34.
When the driving mechanism is assembled with the connecting mechanism 3, the first positioning round hole 218 is first aligned with the first positioning pin 37, and after the first flange 28 abuts and is relatively attached to the first flange seat 32, the first swing bolt 34 is rotated into the first open slot 282, and the first locking nut 35 is adjusted to lock the first swing bolt 34. When the driving mechanism is detached from the connecting mechanism 3, the above operation is performed in the direction.
As shown in fig. 7 to 9, a flange connection structure in which the connection mechanism 3 and the actuator 4 are connected to each other is taken as an example.
The connecting mechanism 3 includes a second flange 38 disposed at the bottom of the second connecting pipe 31, two second positioning circular holes 318 are disposed at the upper oblique angle of the second flange 38, and four second opening grooves 382 are disposed at equal intervals on the circumference, of course, the number and the positions of the second positioning circular holes 318 and the second opening grooves 382 may be selectively adjusted according to the requirement, and are not specifically limited herein.
The actuator 4 includes a third connecting pipe 41, a second flange seat 42 is disposed on the top of the third connecting pipe 41 and is matched with the second flange 38, and a second positioning pin 47 is disposed on the second flange seat 42 and is matched with the second positioning round hole 318.
Four second swing bolts 44 matched with the second opening groove 382 are uniformly distributed on the circumference of the second flange seat 42, the second swing bolts 44 are rotatably arranged on the second flange seat 42 through second pin shafts 43, so that the second swing bolts 44 can flexibly rotate around the second pin shafts 43 to enter or exit the second opening groove 382, a second lock nut 45 and a second limit nut 46 arranged at one end of the second swing bolts 44 far away from the second flange seat 42 are further arranged on the second swing bolts 44, and the second limit nut 46 can prevent the accident that the connecting mechanism 3 is separated from the actuating mechanism 4 after the threaded connection between the second lock nut 45 and the second swing bolts 44 fails.
When the connecting mechanism 3 is assembled with the actuator 4, the second positioning round hole 318 is aligned with the second positioning pin 47, and when the second flange 38 abuts against and is attached to the second flange seat 42, the second swing bolt 44 is rotated into the second opening groove 382, and the second lock nut 45 is adjusted to lock the second swing bolt 44. When the connecting mechanism 3 is detached from the actuator 4, the above operation is performed.
Meanwhile, the flange connection structure can be a flange seat arranged on the driving mechanism and a flange arranged on the connection mechanism 3 and matched with the flange seat, namely the flange seat and the flange are correspondingly arranged, and the flange connection structure is specifically arranged on which mechanism and can be adjusted according to requirements, and is not specifically limited here.
Further, the connecting mechanism 3 comprises one or more unit connecting mechanisms, and a flange connecting structure is arranged between adjacent unit connecting mechanisms, so that it can be understood that the connecting mechanism 3 can be assembled by adopting a plurality of unit connecting mechanisms through the flange connecting structures according to actual requirements, such as the depth of the working environment of the device, so as to prolong the whole length of the device.
As shown in fig. 9 and 10, the actuator 4 includes a hollow tube installed on the connecting mechanism, a driving member disposed in the hollow tube, and a gripper mechanism driven by the driving member to reciprocate.
The hollow pipe body includes a first flange pipe 48 connected to an end of the third connecting pipe 41 remote from the connecting mechanism, a second flange pipe 49 detachably connected to an end of the first flange pipe 48 remote from the third connecting pipe 41, and a sheath 410 detachably mounted to an end of the second flange pipe 49 remote from the first flange pipe 48 by screw coupling.
The corresponding joint portion of the first flange pipe 48 and the second flange pipe 49 is provided with a positioning hole, the positioning hole is inserted and arranged through a positioning pin to realize centering, subsequently, fastening bolts are sequentially installed to complete assembling of the first flange pipe 48 and the second flange pipe 49, further, an external thread is processed on the pipe wall of the second flange pipe 49, and an internal thread is processed on the sheath 410 to be installed in a threaded connection mode. Of course, other connection modes can be provided, and the connection modes can be selected according to actual requirements.
In this embodiment, the aperture of the open end of the hollow tube is gradually reduced from inside to outside, the clamping jaw mechanism includes an elastic clamping jaw 413 disposed in the hollow tube and a screwing piece 412 disposed in the middle of the elastic clamping jaw 413, when the elastic clamping jaw 413 moves from inside to outside, the inner wall of the open end of the hollow tube presses the elastic clamping jaw 413, so that the elastic clamping jaw 413 contracts, and when the elastic clamping jaw 413 moves from outside to inside, the inner wall of the open end of the hollow tube loosens the pressing of the elastic clamping jaw 413, so that the elastic clamping jaw 413 opens.
Further, the elastic clamping jaw 413 comprises a cylindrical body, a plurality of slots are formed in a side wall of one end of the cylindrical body to form a plurality of clamping jaws, and the inner circle diameter of the cylindrical body is larger than the outer circle diameter of the screw.
The driving piece is an air cylinder, the air cylinder is detachably arranged in the inner cavities of the first flange pipe 48 and the second flange pipe 49 in a threaded connection mode, an air pipe for air transmission of the air cylinder is fixed on the driving mechanism, the connecting mechanism 3 and the executing mechanism 4 in a bundling mode, the air cylinder is used for a pneumatic connector which can be used in deep water and in an irradiation environment, the pneumatic connector is divided into a socket part and a plug part, and the socket part and the plug part can be inserted and connected quickly and have reliable sealing performance.
The resilient jaw 413 and the screw 412 are fixedly mounted on the end of a piston rod 4112 of the cylinder. Further, revolve and twist piece 412 for the hexagonal adapter head, this hexagonal adapter head middle section processing outer hexagonal head, hexagonal hole in this second flange pipe 49 inner pipe wall processing, hexagonal adapter head and second flange pipe 49 assembly back form accurate face cooperation to better transmission moment of torsion, hexagonal face outside this hexagonal adapter head tip processing, hexagonal face adaptation in outer hexagonal face and the screw rod for revolve the screw rod better.
In this embodiment, this screw rod of transport is twisted integrated device to preset position, control cylinder work, so that piston rod 4112 stretches out, drive hexagonal adaptation head and elastic clamping jaw 413 together downstream, hexagonal is downthehole in hexagonal end entering screw rod of hexagonal adaptation head, elastic clamping jaw 413 presss from both sides this screw rod, this moment actuating mechanism drive arrangement is whole to be rotated, unscrew this screw rod, transport this screw rod to assigned position after, control this cylinder with piston rod 4112 withdrawal, drive hexagonal adaptation head and elastic clamping jaw 413 together upward movement, at this moment, the extrusion to elastic clamping jaw 413 is loosened to the open end inner wall of hollow pipe body, so that elastic clamping jaw 413 opens, the screw rod breaks away from in this elastic clamping jaw 413.
The screw screwing and clamping integrated device has a guiding function in deep water and in an irradiation environment, shortens the operation time of centering the screw, is high in efficiency, is safe and reliable in clamping and carrying the screw, guarantees safe and smooth replacement of the control rod guide cylinder, adopts a modular design of parts, can be commonly used with other tools, and reduces the number of tools.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims (12)

1. A screw rod screwing and clamping integrated device is characterized by comprising
The driving mechanism is used for driving the whole device to rotate;
the connecting mechanism (3) is connected with the driving mechanism and is used for transmitting the torque generated by the driving mechanism and prolonging the length of the whole device; and
the actuating mechanism (4) is connected with one end, far away from the driving mechanism, of the connecting mechanism (3) and is used for clamping and driving the screw rod to rotate;
the actuating mechanism (4) comprises a hollow pipe body arranged on the connecting mechanism (3), a driving piece arranged in the hollow pipe body and a clamping jaw mechanism driven by the driving piece to reciprocate;
the aperture of the opening end of the hollow pipe body is gradually reduced from inside to outside;
the clamping jaw mechanism comprises an elastic clamping jaw (413) arranged in the hollow pipe body and a screwing piece (412) arranged in the middle of the elastic clamping jaw (413);
when the elastic clamping jaw (413) moves from inside to outside, the inner wall of the opening end of the hollow pipe body presses the elastic clamping jaw (413) so as to enable the elastic clamping jaw (413) to contract;
when the elastic clamping jaws (413) move from outside to inside, the inner wall of the opening end of the hollow pipe body loosens the extrusion on the elastic clamping jaws (413), so that the elastic clamping jaws (413) are opened.
2. Screw-threaded clamping integrated device according to claim 1, characterized in that said driving means comprise a positioning assembly (2) connected at its lower end to said connecting means (3); and
and the rotating assembly (1) is arranged at the top of the positioning assembly (2).
3. The screw rod screwing and clamping integrated device according to claim 2, wherein the rotating assembly (1) is movably connected with the positioning assembly (2) through an inserting positioning structure;
the inserting positioning structure comprises a positioning hole arranged on the rotating component (1) and a positioning column (241) which is arranged on the positioning component (2) and is matched with the positioning hole for limiting; alternatively, the first and second electrodes may be,
the inserting and positioning structure comprises a positioning hole formed in the positioning component (2) and a positioning column arranged on the rotating component (1) and matched with and limited by the positioning hole.
4. The screw-threaded clamping integrated device of claim 2,
the positioning assembly (2) comprises a first connection pipe (21);
the top of the first connecting pipe (21) is provided with a connecting piece (24);
the rotating assembly (1) comprises a sleeve (11) which is positioned and sleeved on the connecting piece (24); and
a handle (12) extending outwardly around the circumference of the sleeve (11).
5. The screw-driving-clamping integrated device according to claim 4, wherein the handle (12) is provided in plurality and is arranged on the circumference of the sleeve (11) in an axisymmetric manner;
the rotating assembly (1) further comprises a force increasing arm (13) which is sleeved on the periphery of the handle (12) and used for increasing the force arm and further increasing the torque.
6. Screw-threaded clamping integrated device according to claim 4, characterized in that the positioning assembly (2) further comprises a lifting ring assembly arranged at the periphery of the first connecting pipe (21).
7. The screw-screwing and clamping integrated device according to claim 6, wherein the lifting ring assembly comprises a first retaining ring (22) and a second retaining ring (23) which are separately arranged on the first connecting pipe (21), a lifting ring seat (25) which is rotatably sleeved on the periphery of the first connecting pipe (21) and is positioned between the first retaining ring (22) and the second retaining ring (23), two rotating shafts (26) which extend outwards at the circumference of the lifting ring seat (25) and are arranged with axes passing through the same diameter, and a lifting ring (27) which is rotatably arranged on the two rotating shafts (26).
8. The screw rod screwing and clamping integrated device according to any one of claims 1-7, wherein a flange connecting structure is respectively arranged at one end of the driving mechanism connected with the connecting mechanism (3) and one end of the connecting mechanism (3) connected with the actuating mechanism (4);
the flange connecting structure comprises a flange with a plurality of open slots on the circumference, a flange seat matched with the flange, and a plurality of swing bolts which are arranged on the flange seat and can enter or exit the open slots in a rotating mode.
9. Screw-threaded clamping integrated device according to claim 8, characterized in that the connecting means (3) comprise one or more unit connecting means, between which adjacent unit connecting means the flange connecting means are provided.
10. The screw-threaded clamping integrated device according to claim 1, wherein the hollow pipe body comprises a third connecting pipe (41) connected with the connecting mechanism, a first flange pipe (48) connected with one end of the third connecting pipe (41) far away from the connecting mechanism, a second flange pipe (49) detachably connected with one end of the first flange pipe (48) far away from the third connecting pipe (41), and a sheath (410) detachably mounted on one end of the second flange pipe (49) far away from the first flange pipe (48) through threaded connection.
11. The screw-screwing-clamping integrated device according to claim 1, wherein the elastic clamping jaw (413) comprises a cylindrical body, and a plurality of slots are formed in the side wall of one end part of the cylindrical body to form a plurality of clamping jaws;
the screw element (412) is a hexagonal adapter.
12. The screw-tightening and clamping integrated device as claimed in claim 1, wherein the driving member is a cylinder, and the elastic clamping jaw (413) and the tightening member (412) are fixedly mounted at the end of a piston rod of the cylinder.
CN201910990248.XA 2019-10-17 2019-10-17 Screw rod screwing and clamping integrated device Active CN110802540B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910990248.XA CN110802540B (en) 2019-10-17 2019-10-17 Screw rod screwing and clamping integrated device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910990248.XA CN110802540B (en) 2019-10-17 2019-10-17 Screw rod screwing and clamping integrated device

Publications (2)

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CN110802540A CN110802540A (en) 2020-02-18
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CN113823426B (en) * 2021-09-22 2024-01-23 中国核动力研究设计院 Dismounting tool suitable for pressure-resistant shell part of reluctance motor type control rod driving mechanism
CN115741058A (en) * 2022-10-28 2023-03-07 中国核动力研究设计院 Underwater clamping tool for skirt nut

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CN101740148A (en) * 2008-11-20 2010-06-16 中国核电工程有限公司 Gripper for irradiation sample of nuclear power plant
CN104647268A (en) * 2013-11-25 2015-05-27 南通威明精工机械有限公司 Screw driver assist device
CN105710812A (en) * 2014-12-05 2016-06-29 天津朗誉科技发展有限公司 Multifunctional screwdriver with illuminating device and screw clamping device
CN209158219U (en) * 2018-09-27 2019-07-26 南京工业职业技术学院 A kind of new type auto centering screwdriver

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CN2127650Y (en) * 1992-06-09 1993-03-03 包柱 Screwdriver
CN2782313Y (en) * 2005-04-11 2006-05-24 温永林 Multipurpose screwdriver
CN201244791Y (en) * 2008-08-28 2009-05-27 上海昆杰五金工具有限公司 Multi-angle screwdriver
CN101740148A (en) * 2008-11-20 2010-06-16 中国核电工程有限公司 Gripper for irradiation sample of nuclear power plant
CN201483428U (en) * 2009-06-11 2010-05-26 安徽省电力公司巢湖供电公司 Multifunctional screwdriver
CN104647268A (en) * 2013-11-25 2015-05-27 南通威明精工机械有限公司 Screw driver assist device
CN105710812A (en) * 2014-12-05 2016-06-29 天津朗誉科技发展有限公司 Multifunctional screwdriver with illuminating device and screw clamping device
CN209158219U (en) * 2018-09-27 2019-07-26 南京工业职业技术学院 A kind of new type auto centering screwdriver

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