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CN-121989175-A - Underwater long rod clamping tool with cantilever and use method thereof

CN121989175ACN 121989175 ACN121989175 ACN 121989175ACN-121989175-A

Abstract

The application belongs to the technical field of overhauling and clamping tools of nuclear power plants, and aims to solve the problem of stable clamping of a long rod special tool or an underwater video during overhauling of the nuclear power plants. The underwater long rod clamping tool with the cantilever can stably clamp a long rod tool or an underwater video, can stably and horizontally move within a certain range, improves the stability and safety of operation, and reduces the fatigue and radiation risk of operators caused by holding the long rod tool or the video.

Inventors

  • WANG CONG
  • NIE WENZHE
  • ZHOU PAN
  • HE SHAOHUA
  • FANG CHENGPING
  • FAN BINGZHONG
  • DENG YANCHAO
  • LI XUNING

Assignees

  • 中核核电运行管理有限公司

Dates

Publication Date
20260508
Application Date
20251103

Claims (10)

  1. 1. The underwater long rod clamping tool with the cantilever is characterized by comprising a clamping jaw assembly (1), a cantilever assembly (2), a hanging frame assembly (3) and a guardrail (4), wherein the clamping jaw assembly (1) is arranged on the cantilever assembly (2), the hanging frame assembly (3) is arranged on the guardrail (4), and the clamping jaw assembly (1) clamps a long rod (5); Clamping jaw assembly (1) is including fixed clamping jaw (101), activity clamping jaw (103), quick clamp (104) and short round pin axle (105), fixed clamping jaw (101) with activity clamping jaw (103) are connected through round pin axle (102), quick clamp (104) are installed fixed clamping jaw (101) with on activity clamping jaw (103), clamping jaw assembly (1) are passed through short round pin axle (105) are connected cantilever assembly (2).
  2. 2. The underwater long rod clamping tool with the cantilever according to claim 1, wherein a threaded hole is formed in the side face of the fixed clamping jaw (101), and a deflector rod (106) is connected with the threaded hole.
  3. 3. The underwater long rod clamping tool with the cantilever according to claim 1, wherein the short pin shaft (105) is inserted into a shaft hole of the fixed clamping jaw (101), and a pin hole is arranged at the lower part of the short pin shaft (105) and is fixed through a clamping jaw short and fast bolt (107).
  4. 4. The cantilevered subsea long bar gripping tool of claim 1, characterized in that the quick clamp (104) is mounted on the stationary jaw (101) and the movable jaw (103) by mounting screws (108).
  5. 5. The underwater long rod clamping tool with the cantilever according to claim 1, wherein pin holes are formed in the fixed clamping jaw (101) and the movable clamping jaw (103), and the pin shaft (102) is inserted into the pin holes to connect the fixed clamping jaw (101) and the movable clamping jaw (103).
  6. 6. The underwater long rod clamping tool with the cantilever according to claim 1, wherein the cantilever assembly (2) comprises a cantilever (201), a long pin shaft (202) and a short and fast pin (203), a vertical through hole is formed in the end portion of the cantilever (201), the vertically arranged long pin shaft (202) penetrates through the vertical through hole to connect the two cantilever assemblies (2), a horizontal through hole is formed in the bottom of the long pin shaft (202), and the short and fast pin (203) penetrates through the horizontal through hole to lock the long pin shaft (202) in the vertical through hole.
  7. 7. The underwater long rod clamping tool with the cantilever according to claim 6, wherein a plurality of cantilever assemblies (2) are connected through the long pin shaft (202) and the short and fast bolt (203).
  8. 8. The underwater long rod clamping tool with the cantilever according to claim 6, wherein the cantilever assembly (2) and the hanging frame assembly (3) are connected through the long pin shaft (202) and the short and fast pin (203).
  9. 9. The boom-carrying underwater long pole gripping tool of claim 1, wherein the hanger assembly (3) comprises a hanger body (301), a boom mounting base plate (302) and a long quick bolt (303), the boom mounting base plate (302) being mounted on the hanger body (301), the long quick bolt (303) passing through an upper cross bar of the guardrail (4) and locking on the guardrail (4).
  10. 10. The application method of the underwater long rod clamping tool with the cantilever is characterized by comprising the following steps of: The hanging rack assembly (3) is fixed on the guardrail (4) and connected through a quick bolt; The cantilever assembly (2) is mounted on the hanging frame assembly (3), is connected through a long pin shaft (202) and is fixed by a short and fast bolt (203); The clamping jaw assembly (1) is mounted on the cantilever assembly (2), connected through a short pin shaft (105) and fixed by the short quick bolt (203); opening a quick clamp (104) and a movable clamping jaw (103), and placing a long rod (5) in the middle of the clamping jaw assembly (1); closing the movable clamping jaw (103), buckling the quick clamp (104) and clamping the long rod (5); the long rod (5) is moved in the horizontal direction so as to adapt to different operation requirements; After the operation is completed, the quick clamp (104) is loosened, the movable clamping jaw (103) is opened, and the long rod (5) is taken out.

Description

Underwater long rod clamping tool with cantilever and use method thereof Technical Field The application belongs to the technical field of overhauling clamping tools of nuclear power plants, and particularly relates to an underwater long rod clamping tool with a cantilever and a using method thereof. Background During a nuclear power plant overhaul, shielding with boric acid water is required due to the high radiation present in the internals. Operators remotely operate and observe underwater internals and equipment on the surface using a number of long-pole special tools or underwater video. In order to keep the stable postures of the long-rod tool and the underwater video when the long-rod special tool or the underwater video is used, the purpose of stabilizing the postures cannot be achieved by only holding the long-rod special tool or the underwater video by an operator. Therefore, a clamping tool is required to be capable of stably clamping a long rod tool or an underwater video and capable of stably and horizontally moving within a certain range. Disclosure of Invention The application aims to provide an underwater long rod clamping tool with a cantilever and a using method thereof, which solve the problem of stably clamping a long rod special tool or an underwater video during overhaul of a nuclear power plant. In order to achieve the above object, the present application provides the following technical solutions: In a first aspect, the application provides an underwater long rod clamping tool with a cantilever, which comprises a clamping jaw assembly, a cantilever assembly, a hanging frame assembly and a guardrail, wherein the clamping jaw assembly is arranged on the cantilever assembly; The clamping jaw assembly comprises a fixed clamping jaw, a movable clamping jaw, a quick clamp and a short pin shaft, wherein the fixed clamping jaw is connected with the movable clamping jaw through the pin shaft, the quick clamp is installed on the fixed clamping jaw and the movable clamping jaw, and the clamping jaw assembly is connected with the cantilever assembly through the short pin shaft. In some embodiments, a threaded hole is formed in the side face of the fixed clamping jaw, and a deflector rod is connected with the threaded hole. In some embodiments, the short pin shaft is inserted into the shaft hole of the fixed clamping jaw, and the lower part of the short pin shaft is provided with a pin hole and is fixed through a clamping jaw short and fast bolt. In some embodiments, the quick clamp is mounted on the fixed jaw and the movable jaw by mounting screws. In some embodiments, the fixed clamping jaw and the movable clamping jaw are both provided with pin holes, and the pin shafts are inserted into the pin holes to connect the fixed clamping jaw and the movable clamping jaw. In some embodiments, the cantilever components comprise a cantilever, a long pin shaft and a short quick pin, wherein a vertical through hole is formed in the end part of the cantilever, the vertically arranged long pin shaft penetrates through the vertical through hole to connect the two cantilever components, a horizontal through hole is formed in the bottom of the long pin shaft, and the short quick pin penetrates through the horizontal through hole to lock the long pin shaft in the vertical through hole. In some embodiments, a plurality of cantilever assemblies are connected through the long pin shaft and the short quick bolt. In some embodiments, the boom assembly and the hanger assembly are connected by the long pin and the short quick-connect pin. In some embodiments, the hanger assembly includes a hanger body, a cantilever mounting base mounted on the hanger body, and a long quick bolt passing through an upper cross bar of the guardrail and locked to the guardrail. In a second aspect, the application provides a method for using an underwater long rod clamping tool with a cantilever, comprising the following steps: the hanging rack assembly is fixed on the guardrail and connected through a quick bolt; the cantilever component is arranged on the hanger component, connected through a long pin shaft and fixed by a short and fast bolt; the clamping jaw assembly is mounted on the cantilever assembly, connected through a short pin shaft and fixed by the short and fast bolt; Opening a quick clamp and a movable clamping jaw, and placing a long rod in the middle of the clamping jaw assembly; closing the movable clamping jaw, buckling the quick clamp and clamping the long rod; Moving the long rod in the horizontal direction to adapt to different operation requirements; And after the operation is finished, loosening the quick clamp, opening the movable clamping jaw, and taking out the long rod. Compared with the prior art, the underwater long rod clamping tool with the cantilever has the following beneficial effects: The underwater long rod clamping tool with the cantilever can stably clamp a long rod tool or an underwater video, can st