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Bolt underwater removal tool

A bolt and tool technology, applied in the field of underwater disassembly and assembly of bolts and storage tools, can solve the problem that disassembly and installation tools cannot meet the requirements of underwater long-distance disassembly and installation, and achieve reliable bolt disassembly and assembly work, remarkable effect, and simple structure. Effect

Active Publication Date: 2018-05-08
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 removal tool
  • Bolt underwater removal tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Bolt underwater removal 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 and 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 extrusion channels 11 distributed at 120° in the circumferential direction, so that the locking sleeve 9 is extruded and deformed. The locking sleeve 9 cooperates with the elastic sleeve 6 and can slide on the elastic sleeve 6. The anti-rotation pin 7 is integrated with the locking sleeve 9 and the moving rod 8. The anti-rotation pin 7 can pass through the sliding groove 10 in the Slide on the elastic sleeve 6.

[0032] When the locking sleeve 9 moves up, the elastic sleeve 6 opens; when the locking sleeve 9 moves down, the elastic sleeve 6 closes. By cl...

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 rib teeth 13. The rear end of the connecting sleeve 5 is provided with a connecting slot 12, and the connecting slot 12 Corresponding to the sliding channel 10. The front end of the connecting sleeve 5 is provided with rib teeth 13, and the number of the rib teeth 13 is set to three, and the three rib teeth 13 are respectively inserted into the three extrusion grooves 11 of the elastic sleeve 6, and the anti-torsion device The middle part is provided with a hexagonal prism, and the hexagonal prism cooperates with the hexagonal prism hole of the elastic sleeve 6, and the moving rod 8 cooperates with the connecting sleeve 5 and...

Embodiment 3

[0047] The difference between this embodiment and Embodiment 2 is that, in order to be better suitable for the disassembly and installation of underwater bolts or nuts, in the use of the present invention, the 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 old and new bolt storage container is plate-shaped, and a plurality of bolt connection holes and nut connection rods are arranged on the old and new bolt storage container.

[0048] During use, new nuts can be installed on the nut connecting rod first, then new bolts can be installed on the bolt connection holes, and then placed at the positions where the bolts and nuts need to be replaced. After the nuts or bolts are disassembled by using the tool of the present invention, the disassembled nuts or bolts are installed on the old and new bolt storage containers, and then the new bolts and nuts are removed from the old and new b...

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Abstract

The invention discloses a bolt underwater disassembly and assembly tool, which solves the problem that the existing bolt disassembly and installation tools cannot meet the requirements for underwater long-distance disassembly and installation. The present invention includes an operating rod, an elastic grabbing head whose top end is fixedly connected to the bottom end of the operating rod; the elastic grabbing head includes an elastic sleeve, a locking sleeve arranged on the elastic sleeve and used to close and open the elastic sleeve The operating rod includes an outer sleeve, and a moving rod arranged inside the outer sleeve; one end of the elastic sleeve is provided with two sliding slots arranged radially along the elastic sleeve, and the other end of the elastic sleeve is provided with a useful Extrusion channel that deforms and compresses when the locking sleeve is extruded. The invention can reliably complete the disassembly and assembly of bolts in radioactive or underwater situations, and under the condition that the gap between the bolts and the surrounding space is very small, and the thickness of the bolt heads is very small.

Description

technical field [0001] The invention relates to a bolt disassembly tool, in particular to a bolt underwater disassembly and storage tool. Background technique [0002] In the case of radioactivity, when bolted connections are involved, it is necessary to remove and install bolts 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 disassembled and cannot be installed, and the bolt is easy to slip and fall into the pool after disassembly. Some people have made improvements on the above-mentioned technology. Steel balls and springs are added to the barrel, which has the function of long-distance bolt support. However, this elastic gripper is large in size. When the gap between the bolt and the surrounding space is very small, it cannot reliably complete the long-distance disassembly and assembly work. Contents of the invention [0003] The purpose of the present i...

Claims

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Application Information

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Patent Type & Authority Patents(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