KR101685870B1 - Heat-exchanger manway nut tightening rotation hydro wrench supporting device - Google Patents

Heat-exchanger manway nut tightening rotation hydro wrench supporting device Download PDF

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Publication number
KR101685870B1
KR101685870B1 KR1020160000220A KR20160000220A KR101685870B1 KR 101685870 B1 KR101685870 B1 KR 101685870B1 KR 1020160000220 A KR1020160000220 A KR 1020160000220A KR 20160000220 A KR20160000220 A KR 20160000220A KR 101685870 B1 KR101685870 B1 KR 101685870B1
Authority
KR
South Korea
Prior art keywords
manway
heat exchanger
nut
hydraulic wrench
cover
Prior art date
Application number
KR1020160000220A
Other languages
Korean (ko)
Inventor
신영하
Original Assignee
한전케이피에스 주식회사
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
Application filed by 한전케이피에스 주식회사 filed Critical 한전케이피에스 주식회사
Priority to KR1020160000220A priority Critical patent/KR101685870B1/en
Application granted granted Critical
Publication of KR101685870B1 publication Critical patent/KR101685870B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0042—Stands

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The present invention relates to a hydraulic wrench for fastening a heat exchanger manway nut which joins a heat exchanger and a manway cover, a vertical moving part for moving the hydraulic wrench up and down, And a connecting plate connecting the center shaft and the up-down moving unit and rotatably engaged with the center shaft. The present invention relates to a rotary hydraulic wrench supporting apparatus for a manway nut tightening apparatus for a heat exchanger.
According to an embodiment of the present invention, it is possible to insert a large-capacity hydraulic wrench into a heat exchanger manway nut by using a hydraulic device without manually inserting the same into a manway nut, thereby minimizing a safety accident.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rotary hydraulic wrench supporting apparatus for a heat exchanger, a manway nut tightening apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary type hydraulic wrench supporting apparatus for a manway nut for tightening a heat exchanger, and more particularly, to a rotary type hydraulic wrench supporting apparatus for a heat exchanger, To a hydraulic wrench support apparatus.

1, a large capacity heat exchanger installed in a nuclear power plant or the like is coupled to a manway cover at a lower portion. At this time, a bolt is inserted and connected to the heat exchanger and the manway cover, and a nut (hereinafter, referred to as a 'heat exchanger manway nut') is fastened to the bolt at a lower portion of the manway cover to fasten the heat exchanger and the manway cover.

However, the heat exchanger manway nut is large in size and heavy, requires a large-capacity hydraulic wrench for unscrewing and tightening, and has a problem of safety accident when the user manually operates the hydraulic wrench with a large capacity.

In order to solve at least some of the above problems, an aspect of the present invention provides a heat exchanger manway nut for inserting a large-capacity hydraulic wrench into a heat exchanger manway nut for fastening a large-capacity hydraulic wrench, And to provide the above-mentioned objects.

In order to achieve the above object, the present invention provides a hydraulic wrench for fastening a heat exchanger manway nut which joins a heat exchanger and a manway cover, a vertical moving part for moving the hydraulic wrench up and down, And a connecting plate which is arranged in a lower direction of the way cover and engages with the manway cover, and a connecting plate which connects the center shaft and the up-down moving part and rotatably engages with the center shaft. A rotary hydraulic wrench support device is provided.

According to an embodiment of the present invention, the support may further include a support portion, one side of which is connected to the connection plate and the other side of which is in contact with the lower portion of the manway cover in a direction opposite to the up-

According to an embodiment of the present invention, the up-and-down moving unit may be provided as a hydraulic apparatus in which the moving rod moves up and down when fluid is supplied or discharged.

According to an embodiment of the present invention, the hydraulic wrench can be seated on the upper surface of the moving rod.

According to an embodiment of the present invention, the coupling plate may further include a bearing inserted into an outer circumferential surface of the central shaft to which the coupling plate is coupled.

According to an embodiment of the present invention, the support portion may further include a rolling member at an end portion thereof that is in contact with the manway cover.

According to an embodiment of the present invention, the hydraulic wrench includes a heat exchanger manway nut fixed to the hydraulic wrench body and adjacent to the heat exchanger manway nut inserted into the socket when the heat exchanger manway nut is inserted into the socket, And may further include a socket support for contacting.

According to an embodiment of the present invention, a plurality of heat exchanger manway nuts are disposed in a circumferential direction at a lower portion of the manway cover, and the central axis can be coupled to the manway cover at the center in the circumferential direction.

As described above, according to the embodiment of the present invention, it is possible to insert a large-capacity hydraulic wrench into a heat exchanger manway nut using a hydraulic device without manually inserting the same into a manway nut, thereby minimizing a safety accident.

According to an embodiment of the present invention, a plurality of heat exchanger manway nuts arranged in the circumferential direction can be sequentially and easily fastened.

1 is a photograph showing a heat exchanger manway nut for fastening a heat exchanger to a manway.
2 is a front view of a rotary hydraulic wrench supporting apparatus for a manway nut tightening apparatus for a heat exchanger according to an embodiment of the present invention.
3 is a rear view of Fig.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, the embodiments described below are embodiments suitable for understanding the rotary hydraulic wrench support apparatus 100 for clamping a heat exchanger manway nut according to the present invention. It should be understood, however, that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

1 to 3, a rotary-type hydraulic wrench 110 supporting apparatus 100 according to an embodiment of the present invention includes a heat exchanger H for coupling a manway cover C engaged with a heat exchanger H, A hydraulic wrench 110 for fastening the washer N, a vertical moving part 120 for moving the hydraulic wrench 110 up and down, A connecting plate 150 connecting the center shaft 130 and the up and down moving unit 120 and rotatably coupling with the center shaft 130, And a support portion 160 which is coupled to the connecting plate 150 at one side in the opposite direction to the up-down moving portion 120 and contacts the lower portion of the manway cover at the other side.

First, the hydraulic wrench 110 inserted into the heat exchanger manway nut includes a socket 111 which is inserted into the heat exchanger manway nut and rotates and fastens the heat exchanger manway nut.

When the hydraulic wrench 110 is seated without being fixed to the upper portion of the up and down moving part 120, the hydraulic wrench body 113 also rotates when the socket 111 rotates, .

Therefore, the hydraulic wrench 110 according to the present invention includes the socket support 112 so that the socket 111 can be rotated and the nut can be fastened while the hydraulic wrench body 113 is fixed without rotating can do.

Here, the socket support 112 is fixed to one side of the hydraulic wrench body 113, and when the socket 111 is inserted into the heat exchanger manway nut, the socket support stand 112 is connected to the heat exchanger manway nut Are inserted between the nutways.

Therefore, when the socket 111 rotates, the socket support 112 supports the adjacent manway nut and can generate a tightening torque for tightening the nut to the socket 111.

A hydraulic wrench 110 according to an embodiment of the present invention is configured to rotate a socket 111 when a fluid is supplied from a hydraulic pump 114 to fasten a nut inserted into the socket 111, Embodiments may be employed.

In addition, the up-down moving part 120 according to an embodiment of the present invention includes a hydraulic pump 114 for supplying a fluid, and a hydraulic pump connected to the hydraulic pump, And a moving rod 121 which moves downward when it is lowered. As long as the up-and-down moving unit 120 moves upward or downward by the flow of the fluid, various known embodiments may be employed.

The hydraulic wrench 110 is mounted on the upper portion of the up and down movement unit 120 and the hydraulic wrench 110 can be moved up and down according to the driving of the up and down movement unit 120.

Referring to FIG. 2, the center shaft 130 according to an embodiment of the present invention may be disposed in a downward direction at the center of the lower surface of the manway cover in association with the manway cover. For example, the center shaft 130 and the up-and-down moving unit 120 may be disposed in a lower direction of the manway cover and may be parallel to each other.

The center shaft 130 according to an embodiment of the present invention is coupled to a lock nut 131 having an end inserted into a cover nut C provided on the manway cover and constrained to the center shaft 130, Can be fastened to the manway cover.

2, the connecting plate 150 according to an embodiment of the present invention connects the lower end of the center shaft 130 fixed to the manway cover to the lower end of the up-down moving unit 120 .

The bearing 140 is provided on the outer circumferential surface of the center shaft 130 that contacts the connecting plate 150 so that the connecting plate 150 is rotatably coupled to the center shaft 130 on the center shaft 130. [ ) Can be inserted.

In addition, the center shaft 130 may be inserted into the lower portion of the connection plate 150 without being detached from the lower portion after the connection plate 150 is inserted and connected.

The vertical movement part 120 is connected to the central shaft 130 fixed to the manway cover by the connection plate 150 and is not separated from the manway cover. So that it can rotate about the central axis 130.

Meanwhile, the distance between the connecting plate 150 and the manway cover can be determined by the moving distance and length of the moving rod 121, the length of the socket 111, and the like.

That is, when the moving rod 121 is not in an initial state, the socket 111 is placed in a state where it is not in contact with the heat exchanger manway nut, and the moving rod The length of the connecting plate 150 and the length of the manway cover are spaced apart by a distance that the socket 111 can be inserted into the nut.

 The supporting part 160 according to an embodiment of the present invention is configured such that the up and down moving part 120 connected to the connecting plate 150 rotates about the center axis 130, And the vertical moving part 120 can rotate smoothly.

To this end, the support portion 160 may further include a roller 161 such as a roller at an end thereof contacting the lower portion of the manway cover.

Hereinafter, the operation and effect of the rotary hydraulic wrench supporting apparatus 100 for manway nut tightening of the heat exchanger according to the embodiment of the present invention will be described.

The rotary hydraulic wrench supporting apparatus 100 for adjusting a manway nut for a heat exchanger according to an embodiment of the present invention includes a support portion 160 disposed opposite to the center shaft 130 with respect to the center shaft 130, And a hydraulic wrench 110 is seated on the upper part of the up-down moving part 120. [

When the center shaft 130 is coupled to the manway cover, in the initial state in which the moving rod 121 does not move up, the heat exchanger manway nut and the socket 111 of the hydraulic wrench 110 are separated from each other Lt; / RTI >

The hydraulic wrench 110 mounted on the upper portion of the moving rod 121 is also lifted up to the upper portion of the socket 111 by driving the hydraulic pump connected to the up-down moving unit 120 to raise the moving rod 121. [ The heat exchanger manway nut is inserted.

At this time, the socket support 112 supports the hydraulic wrench 110 in contact with other adjacent nuts.

After the heat exchanger manway nut is inserted into the socket 111, the hydraulic wrench 110 is driven to fasten the heat exchanger manway nut.

2 and 3, after one of the heat exchanger manway nuts is fastened, the moving rod 121 is lowered to separate the socket 111 from the fastened heat exchanger manway nut .

The vertically moving part 120 is connected to the center shaft 130 by the connecting plate 150 and the connecting plate 150 is rotatably coupled to the center shaft 130 And the vertical moving part 120 may also rotate about the central axis 130. [

Thus, the up-and-down moving unit 120 rotates about the central axis 130 to dispose the hydraulic wrench 110 at the lower end of the heat exchanger manway nut adjacent to the already-connected heat exchanger manway nut.

Thereafter, the same procedure as described above is repeated to fasten the heat exchanger manway nut.

Accordingly, the same process is repeated for rotating the hydraulic wrench for a manway nut for a heat exchanger according to an embodiment of the present invention, and the up-down moving unit 120 is rotated around the center shaft 130, A plurality of heat exchanger manway nuts provided in the circumferential direction on the manway cover can be sequentially tightened.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be understood by those skilled in the art that the present invention can be easily understood by those skilled in the art.

100: Support device
110: Hydraulic wrench
111: Socket
112: socket support
113: Hydraulic wrench body
114: Hydraulic pump
120: Up and down moving part
121: Moving Rod
122: inside
123: Hydraulic pump
130: center axis
131: Lock nut
132: Lower nut
140: Bearings
150: connecting plate
160: Support
161:

Claims (8)

A hydraulic wrench for fastening a heat exchanger manway nut joining the heat exchanger and the manway cover;
A vertical moving part for vertically moving the hydraulic wrench;
A center axis disposed in a lower direction of the manway cover and engaging with the manway cover; And
And a connecting plate connecting the center shaft and the up-down moving unit and rotatably engaging with the center shaft
Wherein the up-down moving part is provided with a hydraulic device in which the moving rod moves up and down when a fluid is supplied or discharged, and the hydraulic wrench is seated on the upper surface of the moving rod. The method according to claim 1,
Further comprising: a support portion having one side connected to the connection plate and the other side contacting a lower portion of the manway cover in a direction opposite to the up-down moving portion with respect to the central axis. delete delete The method according to claim 1,
Further comprising: a bearing inserted into the outer circumferential surface of the central shaft to which the connecting plate is engaged. 3. The method of claim 2,
The support portion
Further comprising a rolling member at an end contacting the manway cover. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
The hydraulic wrench includes:
A heat exchanger manway nut secured to the hydraulic wrench body and in contact with a heat exchanger manway nut adjacent to the heat exchanger manway nut inserted into the socket when the heat exchanger manway nut is inserted into the socket, Rotary hydraulic wrench support. The method according to claim 1,
Wherein a plurality of heat exchanger manway nuts are arranged in a circumferential direction at a lower portion of the manway cover and the central axis is engaged with the manway cover at a center in the circumferential direction.
KR1020160000220A 2016-01-04 2016-01-04 Heat-exchanger manway nut tightening rotation hydro wrench supporting device KR101685870B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160000220A KR101685870B1 (en) 2016-01-04 2016-01-04 Heat-exchanger manway nut tightening rotation hydro wrench supporting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160000220A KR101685870B1 (en) 2016-01-04 2016-01-04 Heat-exchanger manway nut tightening rotation hydro wrench supporting device

Publications (1)

Publication Number Publication Date
KR101685870B1 true KR101685870B1 (en) 2016-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109539800A (en) * 2018-10-12 2019-03-29 中冶宝钢技术服务有限公司 Bottom electrode of electric furnace attaching nut attaching/detaching apparatus and assembly and disassembly methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06249576A (en) * 1993-02-26 1994-09-06 Kansei Corp Umbrella water removing machine
JPH0929650A (en) * 1995-07-17 1997-02-04 Nippon Purarado:Kk Reaction opposing type hydraulic torque wrench
JPH10249654A (en) * 1997-03-11 1998-09-22 Kuriharanto:Kk Uniformly tightening method and device of multiple bolts and nuts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06249576A (en) * 1993-02-26 1994-09-06 Kansei Corp Umbrella water removing machine
JPH0929650A (en) * 1995-07-17 1997-02-04 Nippon Purarado:Kk Reaction opposing type hydraulic torque wrench
JPH10249654A (en) * 1997-03-11 1998-09-22 Kuriharanto:Kk Uniformly tightening method and device of multiple bolts and nuts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109539800A (en) * 2018-10-12 2019-03-29 中冶宝钢技术服务有限公司 Bottom electrode of electric furnace attaching nut attaching/detaching apparatus and assembly and disassembly methods

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