CN213505636U - Auxiliary centering tool for reactor core guide column - Google Patents
Auxiliary centering tool for reactor core guide column Download PDFInfo
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- CN213505636U CN213505636U CN202020763556.7U CN202020763556U CN213505636U CN 213505636 U CN213505636 U CN 213505636U CN 202020763556 U CN202020763556 U CN 202020763556U CN 213505636 U CN213505636 U CN 213505636U
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- rope
- damper
- shell
- pull rod
- retracting
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Abstract
The utility model discloses an auxiliary centering tool for reactor core guide post, it relates to a centering tool. The rope-collecting anti-falling device is connected with the guide cylinder through the steel wire rope. The rope-collecting anti-falling device further comprises a damper shell, a damper coil, a damper pull rod, a battery and a damping switch pull rod, wherein the damper shell is arranged on one side of the ratchet wheel assembly, the damper coil is arranged in the damper shell, the damper coil is connected with the battery and the damper pull rod, the damping pull rod is connected with the ratchet wheel assembly through the damping switch pull rod, and a damper signal receiving window is arranged on the damper shell. The utility model has the advantages of reasonable design, can manual or remote control instrument follow main equipment of hanging and accomplish the centering task together, convenient to use is reliable, and the centering is effectual, and the practicality is strong.
Description
Technical Field
The utility model relates to an auxiliary centering instrument, concretely relates to auxiliary centering instrument of reactor core guide post.
Background
The auxiliary centering tool is used for centering when a guide post and a pressure container cover are hoisted, the problem that centering precision is not high is solved, the auxiliary centering tool is composed of a rope-collecting anti-falling structure, a steel wire rope and a guide cylinder, the upper end of the steel wire rope is connected with the rope-collecting anti-falling structure, the lower end of the steel wire rope is connected with the guide cylinder, the guide cylinder is made of an aluminum alloy material, the outer circle diameter is in clearance fit with a pressure container top cover flange hole, the height of the guide cylinder is 2.7 meters, the total weight of the guide cylinder cannot exceed 10 kilograms, the working length of the steel wire rope is 7.5 meters, the rope-collecting anti-falling structure has an initial state locking function, the locking device is.
The difficult point of design of supplementary centering instrument lies in receiving the rope and prevents weighing down the mechanism and hang on the ring guide rail of mainly lifting by crane equipment, follows main equipment of lifting by crane and accomplish the centering task together, consequently is more difficult when carrying out structural design, to sum up, the utility model provides a manual control or remote control's supplementary centering instrument of reactor core guide post.
Disclosure of Invention
The utility model aims at providing a not enough to exist on the prior art, the utility model aims at providing a supplementary centering instrument of reactor core guide post, structural design is reasonable, can follow main equipment of hanging by hand or remote control instrument and accomplish the centering task together, and convenient to use is reliable, and the centering is effectual, and the practicality is strong.
In order to achieve the above purpose, the present invention is realized by the following technical solution: the auxiliary centering tool for the reactor core guide column comprises a rope-retracting anti-falling device, a steel wire rope and a guide cylinder, wherein the rope-retracting anti-falling device is connected with the guide cylinder through the steel wire rope.
The rope-collecting anti-falling device comprises a rope-collecting anti-falling structure shell, a steel wire rope reel, a shell cover plate, a pawl wheel, a pull ring, a coil spring shell, a rope-collecting coil spring, a lifting ring and a ratchet assembly, wherein the pull ring is fixed at the top of the rope-collecting anti-falling structure shell, the lifting ring is arranged on the pull ring, the steel wire rope reel is arranged in the rope-collecting anti-falling structure shell, the coil spring shell is arranged on one side of the rope-collecting anti-falling structure shell, a rope-collecting coil spring is arranged in the coil spring shell, the pawl wheel is arranged on the other side of the rope-collecting anti-falling structure shell, the ratchet assembly.
The rope-collecting anti-falling device further comprises a damper shell, a damper coil, a damper pull rod, a battery and a damping switch pull rod, wherein the damper shell is arranged on one side of the ratchet wheel assembly, the damper coil is arranged in the damper shell, the damper coil is connected with the battery and the damper pull rod, the damping pull rod is connected with the ratchet wheel assembly through the damping switch pull rod, and a damper signal receiving window is arranged on the damper shell.
The guide cylinder is provided with a guide cylinder pull ring, the lower end of the guide cylinder is provided with a guide column, the upper end of the guide cylinder is connected with a rope-collecting anti-falling device through a steel wire rope, and the rope-collecting anti-falling device is connected with main hoisting equipment through a main hoisting equipment ring rail.
The utility model has the advantages that: the utility model has the advantages of reasonable design, convenient operation is reliable, can be manual or remote control instrument follow the main centering task of accomplishing together of hanging equipment, and convenient to use is reliable, and the centering is effectual, and the practicality is strong.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the rope-retracting anti-falling device of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic structural view of the guide cylinder of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the auxiliary centering tool for the reactor core guide column comprises a rope-retracting anti-falling device 21, a steel wire rope 12 and a guide cylinder 17, wherein the rope-retracting anti-falling device 21 is connected with the guide cylinder 17 through the steel wire rope 12.
It is worth noting that the rope-retracting anti-falling device 21 comprises a rope-retracting anti-falling structure shell 1, a steel wire rope reel 2, a shell cover plate 3, a pawl wheel 4, a pull ring 5, a coil spring shell 6, a rope-retracting coil spring 7, a lifting ring 8 and a ratchet component 14, wherein the pull ring 5 is fixed at the top of the rope-retracting anti-falling structure shell 1, the lifting ring 8 is arranged on the pull ring 5, the steel wire rope reel 2 is arranged in the rope-retracting anti-falling structure shell 1, the coil spring shell 6 is arranged on one side of the rope-retracting anti-falling structure shell 1, the rope-retracting coil spring 7 is arranged in the coil spring shell 6, the pawl wheel 4 is arranged on the other side of the rope-retracting anti-falling structure shell 1, the ratchet component 14 is arranged above the pawl wheel.
It is worth noting that the rope-retracting falling prevention device 21 further comprises a damper shell 9, a damper coil, a damper pull rod, a battery and a damper switch pull rod 13, wherein the damper shell 9 is arranged on one side of the ratchet wheel assembly 14, the damper coil is arranged in the damper shell 9, the damper coil is connected with the battery and the damper pull rod, the damper pull rod is connected with the ratchet wheel assembly 14 through the damper switch pull rod 13, and a damper signal receiving window 10 is arranged on the damper shell 9.
It is worth noting that a guide cylinder pull ring 18 is arranged on the guide cylinder 17, a guide column 11 is arranged at the lower end of the guide cylinder 17, the upper end of the guide cylinder 17 is connected with a rope-collecting anti-falling device 21 through a steel wire rope 12, and the rope-collecting anti-falling device 21 is connected with a main hoisting device 20 through a main hoisting device ring rail 19.
The working principle of the specific embodiment is as follows: the rope-collecting anti-falling device 21 is hung on the ring rail 19 of the main hoisting equipment and is connected with the guide cylinder 17 through the steel wire rope 12, the whole auxiliary centering tool and the main hoisting equipment complete the task of hoisting the pressure container cover together, as shown in figure 1, 3 guide cylinders are aligned to 3 guide columns through visual inspection during hoisting, the guide cylinders are jacked up by the guide columns when the main hoisting equipment is slowly put down, the stress on the steel wire rope is less than 10 kilograms, and the rope-collecting anti-falling device 21 can synchronously collect the steel wire rope until the hoisting is finished. The rope-retracting anti-falling device 21 has 2 control modes, one mode is a manual control mode, in a safe position, a pawl 15 is manually pulled up, a guide cylinder slowly falls to a proper position to release a hand, the pawl 15 automatically locks the guide cylinder to fall under the action of a pawl coil spring 16 and then starts to be centered, the other mode is a remote control mode, a damper is additionally arranged on the rope-retracting anti-falling device 21 and has 2 functions, one function is that when the guide cylinder falls too fast, the damper pull rod can prop against a steel wire rope reel 2 to slow down or stop falling, the other function is that a pawl 15 is pulled through a damping switch pull rod 13, the guide cylinder moves downwards under the control, a variable resistance displacement switch is arranged on a remote controller to adjust the thrust of a push rod of the damper, if the remote controller fails, the pawl 15 automatically locks a pawl wheel 4 under the action of the pawl coil spring 16, the guide cylinder is prevented from dropping, and safety is ensured.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The reactor core guide post auxiliary centering tool is characterized by comprising a rope-retracting anti-falling device (21), a steel wire rope (12) and a guide cylinder (17), wherein the rope-retracting anti-falling device (21) is connected with the guide cylinder (17) through the steel wire rope (12); the rope-drawing anti-falling device is characterized in that a guide cylinder pull ring (18) is arranged on the guide cylinder (17), a guide column (11) is arranged at the lower end of the guide cylinder (17), the upper end of the guide cylinder (17) is connected with a rope-drawing anti-falling device (21) through a steel wire rope (12), and the rope-drawing anti-falling device (21) is connected with main hoisting equipment (20) through a main hoisting equipment ring rail (19).
2. The reactor core guide post auxiliary centering tool as claimed in claim 1, wherein the rope-retracting anti-falling device (21) comprises a rope-retracting anti-falling structure shell (1), a steel wire rope reel (2), a shell cover plate (3), a pawl wheel (4), a pull ring (5), a coil spring shell (6), a rope-retracting coil spring (7), a lifting ring (8) and a ratchet assembly (14), the top of the rope-retracting anti-falling structure shell (1) is fixed with the pull ring (5), the lifting ring (8) is arranged on the pull ring (5), the steel wire rope reel (2) is arranged in the rope-retracting anti-falling structure shell (1), the coil spring shell (6) is arranged on one side of the rope-retracting anti-falling structure shell (1), the rope-retracting coil spring (7) is arranged in the coil spring shell (6), the pawl wheel (4) is arranged on the other side of the rope-retracting anti-falling, the ratchet assembly (14) comprises a pawl (15) and a pawl coil spring (16), wherein the pawl coil spring (16) is arranged in the center of the pawl (15).
3. The reactor core guide post auxiliary centering tool as claimed in claim 1, wherein the rope retracting anti-falling device (21) further comprises a damper housing (9), a damper coil, a damper pull rod, a battery and a damping switch pull rod (13), the damper housing (9) is arranged on one side of the ratchet assembly (14), the damper coil is arranged in the damper housing (9), the damper coil is connected with the battery and the damper pull rod, the damping pull rod is connected with the ratchet assembly (14) through the damping switch pull rod (13), and a damper signal receiving window (10) is arranged on the damper housing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020763556.7U CN213505636U (en) | 2020-05-09 | 2020-05-09 | Auxiliary centering tool for reactor core guide column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020763556.7U CN213505636U (en) | 2020-05-09 | 2020-05-09 | Auxiliary centering tool for reactor core guide column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213505636U true CN213505636U (en) | 2021-06-22 |
Family
ID=76378981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020763556.7U Active CN213505636U (en) | 2020-05-09 | 2020-05-09 | Auxiliary centering tool for reactor core guide column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213505636U (en) |
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2020
- 2020-05-09 CN CN202020763556.7U patent/CN213505636U/en active Active
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