Bolt underwater dissembling and assembling tool

A technology for bolts and tools, which is applied in the field of underwater disassembly and assembly of bolts and storage tools. It can solve the problems that disassembly and installation tools cannot meet the requirements of underwater long-distance disassembly and installation, and achieve reliable bolt disassembly and assembly work, simple structure, and convenient operation. Effect

Active Publication Date: 2017-02-22
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that existing bolt disassembly and installation tools cannot meet the requirements of underwater long-distance disassembly and installation in narrow gaps, and provide a bolt underwater disassembly and assembly tool that solves the above problems

Method used

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  • Bolt underwater dissembling and assembling tool
  • Bolt underwater dissembling and assembling tool
  • Bolt underwater dissembling and assembling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Bolt underwater disassembly tools, such as figure 1 As shown, it includes an operating rod, an elastic grab head 1, a handle 4 and a driving device.

[0031] The elastic grab head 1, such as figure 2 with image 3 As shown, it includes an elastic sleeve 6 made of precipitation hardening stainless steel, and a locking sleeve 9 sleeved on the elastic sleeve 6. The front end of the elastic sleeve 6 is provided with three squeezing through grooves 11 distributed at 120° in the circumferential direction to facilitate the compression of the locking sleeve 9. The locking sleeve 9 cooperates with the elastic sleeve 6 and can slide on the elastic sleeve 6. The anti-rotation pin 7 is connected with the locking sleeve 9 and the moving rod 8 as a whole, and the anti-rotation pin 7 can pass through the sliding slot 10 in The elastic sleeve 6 slides on.

[0032] When the locking sleeve 9 moves upward, the elastic sleeve 6 is opened; when the locking sleeve 9 moves downward, the elastic ...

Embodiment 2

[0043] The difference between this embodiment and embodiment 1 is that this embodiment adds an anti-torsion device, such as Figure 4 As shown, the specific settings are as follows:

[0044] The anti-torsion device is arranged in the elastic sleeve 6 and welded together with the elastic sleeve 6. The anti-torsion device includes a connecting sleeve 5 and a prismatic tooth 13, and the rear end of the connecting sleeve 5 is provided with a connecting through groove 12 and a connecting through groove 12 It corresponds to the sliding through groove 10. The front end of the connecting sleeve 5 is provided with prismatic teeth 13, the number of the prismatic teeth 13 is set to three, and the three prismatic teeth 13 are respectively clamped into the three extrusion through grooves 11 of the elastic sleeve 6. The anti-torsion device A hexagonal prism 14 is arranged in the middle of the, the hexagonal prism 14 is matched with the hexagonal hole of the elastic sleeve 6, and the moving rod...

Embodiment 3

[0047] The difference between this embodiment and Embodiment 2 is that, in order to be better suited for the disassembly and installation of underwater bolts or nuts, during the use of the present invention, it is also located at a position adjacent to the disassembly and installation of bolts or nuts. Set up new and old bolt storage containers, such as Figure 5 As shown, the new and old bolt storage container is plate-shaped, and a plurality of bolt connection holes and nut connecting rods are provided on the new and old bolt storage container.

[0048] When in use, you can first install a new nut on the nut connecting rod, then install the new bolt on the bolt connecting hole, and then place it at the position where the bolt and nut need to be replaced. After the nut or bolt is disassembled by the tool of the present invention, the disassembled nut or bolt is installed on the new and old bolt storage container, and then the new bolt and nut are removed from the old and new bol...

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Abstract

The invention discloses a bolt underwater dismantling and assembling tool, and solves the problem that the current bolt dissembling and assembling tool cannot satisfy the requirement of underwater long distance dissembling and assembling operations. The tool comprises a operation rod, an elastic grapping head, the top end of which is connected fixedly with the bottom end of the operation rod. The elastic grapping head comprises an elastic sleeve tube. A locking sleeve tube is positioned on the elastic sleeve tube for closing and opening the elastic sleeve tube. The operation rod comprises an outer sleeve tube, a mobile rod placed in the outer sleeve tube. One end of the elastic sleeve tube is provided with two slide through groove placed in the radial direction of the elastic sleeve tube. The other end of the elastic sleeve tube is provided with a pressing through groove for conducting the deformed tightening and pressing in the pressing process of the locking sleeve tube. The tool can complete the bolt dissembling and assembling operations reliably in the underwater condition with radiation, wherein the clearance between the bolt and the periphery is very small, and the thickness of the bolt head section is very small.

Description

Technical field [0001] The invention relates to a bolt disassembly and assembly tool, in particular to a bolt underwater disassembly and assembly tool and storage tool. Background technique [0002] In radioactive situations, when bolting is involved, bolts need to be removed and installed remotely underwater. The existing underwater long-distance bolt removal technology is generally to install a sleeve on the long rod, but this technology can only be removed and cannot be installed, and the bolts are easy to slip and fall into the pool after removal. Some people have made improvements to the above technology. Steel balls and springs are added to the barrel, which has the function of long-distance bolt blessing. However, the size of this elastic grab head is huge. When the space between the bolt and the surrounding space is very small, remote disassembly and assembly work cannot be completed reliably. Summary of the invention [0003] The purpose of the present invention is to so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/48
CPCB25B13/481
Inventor 王万金刘晓松陈启兵李成业王立德邓鹏宇周治江吴伟偶建磊吴瑞郑海川罗文广邹德光曾明季晓林杨军
Owner NUCLEAR POWER INSTITUTE OF CHINA
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