CN212287472U - Remote bolt is demolishd and automatic gripping means and supporting waste container - Google Patents
Remote bolt is demolishd and automatic gripping means and supporting waste container Download PDFInfo
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- CN212287472U CN212287472U CN201921926381.0U CN201921926381U CN212287472U CN 212287472 U CN212287472 U CN 212287472U CN 201921926381 U CN201921926381 U CN 201921926381U CN 212287472 U CN212287472 U CN 212287472U
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- transition sleeve
- main body
- outer sleeve
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Abstract
The utility model belongs to the technical field of the nuclear power station field overhaul, concretely relates to remote bolt is demolishd and automatic gripping means. The top end of the main body of the device is provided with a special head for dismounting the bolt, and a positioning mechanism of the outer wall is positioned in a guide chute of the side wall of the transition sleeve; the lower part of the transition sleeve is provided with a connecting rod for connecting the outer sleeve; the guide mechanism arranged on the connecting rod is positioned in the guide sliding groove of the outer sleeve. Has the advantages that: the underwater remote clamping device has the functions of underwater automatic centering, anti-loosening structure removal, screwing removal and automatic clamping release, is light and reliable, and is suitable for underwater remote operation.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power station field overhaul, concretely relates to remote bolt is demolishd and automatic gripping means and supporting waste container.
Background
After the nuclear reactor unit is operated, components such as reactor internals and the like have high radioactivity. Along with the continuous operation of the unit, parts such as reactor internals under the working conditions of high temperature, high pressure and water flow impact in the reactor pressure vessel are gradually aged, the reliability of the equipment is reduced, and related parts need to be replaced and repaired. Part of fastening bolts need to be removed when related parts are replaced and repaired, and all bolts of the in-pile components are subjected to anti-loosening treatment, so that the anti-loosening structure of the bolts must be firstly destroyed when the related bolts are removed, and then the bolt removal and transfer work is carried out. Under the environment of high radioactive dose, related maintenance work can only be completed through underwater remote operation. The underwater maintenance generally depends on a plurality of underwater tools with single function to carry out the underwater maintenance operation, and the maintenance mode has more operation interfaces, is easy to have errors and has low working efficiency. In order to meet the above requirements, it is necessary to provide a portable and reliable underwater remote operation tool having functions of bolt loosening prevention structure removal, bolt removal and bolt transfer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to lack the problem that remote bolt demolishd specialized tool, provide a remote bolt demolishs and automatic gripping means and supporting waste container.
The technical scheme of the utility model as follows:
a remote bolt dismantling and automatic grabbing tool comprises a main body, a transition sleeve and an outer sleeve; the top end of the main body is provided with a special head for dismounting the bolt, and the special head is matched with the bolt in shape; the outer wall of the main body is provided with a positioning mechanism, the side wall of the transition sleeve is provided with a guide sliding groove, and the positioning mechanism is positioned in the guide sliding groove and can move along the guide sliding groove; the bottom of the transition sleeve is provided with a through hole for the special head to pass through; the lower part of the transition sleeve is provided with a connecting rod for connecting the outer sleeve; the connecting rod is also provided with a guide mechanism; the side wall of the outer sleeve is provided with a guide sliding chute, and the guide mechanism is positioned in the guide sliding chute and can move along the guide sliding chute; the bottom of the outer sleeve is provided with a through hole, so that a bolt can pass through the through hole.
Furthermore, a gripper is arranged on the inner wall of the outer sleeve, and a torsion spring is arranged on the gripper, so that the gripper is in a closed state when not stressed. The lower end of the connecting rod of the transition sleeve is provided with a cam mechanism for opening and closing the gripper.
Further, the tail end of the main body is connected with a long rod.
Furthermore, a compression spring is arranged between the middle body of the main body and the bottom surface of the transition sleeve. The lower part of the bottom surface of the transition sleeve is provided with a lower spring, and the tail end of the lower spring is the tail end of a cam mechanism which is lower than a connecting rod of the transition sleeve in a natural state.
Furthermore, the guide sliding groove of the side wall of the transition sleeve is L-shaped and comprises a horizontal section and a vertical section, and the positioning mechanism can slide on the horizontal section and the vertical section of the guide sliding groove.
Further, the main body, the transition sleeve and the outer sleeve are made of stainless steel.
The utility model also provides a special waste container for detaching the remote bolt, which can be used together with the remote bolt detaching and automatic grabbing tool and comprises an unlocking groove and a waste collecting main body; the outer diameter of the unlocking groove is larger than the outer diameter of the outer sleeve, and the inner diameter of the unlocking groove is smaller than the outer diameter of the outer sleeve; the waste collection body is located below the unlocking slot.
The beneficial effects of the utility model reside in that: the utility model discloses a remote bolt is demolishd and automatic gripping means possesses automatic centering, bolt anti loosening structure demolishs, the bolt revolves soon, the bolt is demolishd, the automatic centre gripping of bolt, bolt transfer, bolt release function under water simultaneously, and is light, reliable, is applicable to remote operation under water. The device has the following functions and characteristics:
1. through the design of the connecting structure of the main body, the transition sleeve and the outer sleeve, the underwater long-distance bolt anti-loosening structure damage function can be realized by matching with an underwater long-rod tool;
2. the special head matched with the part to be dismantled can realize the underwater remote dismantling of various types of bolts or other devices;
3. through the matching design of the cam mechanism, the gripper and the torsion spring, the automatic grabbing function of the bolt can be realized, and the potential safety hazard caused by the falling of the bolt into a reactor pool is avoided;
4. the special waste container can realize the functions of underwater remote bolt transfer and automatic collection, and avoid the contact of workers with radioactive articles;
5. the L-shaped sliding groove of the transition sleeve enables the transition sleeve and the main body to be locked in position, and the compression spring further enhances the stability of the tool, so that the tool has the characteristics of lightness and reliability;
6. the device adopts stainless steel processing, is difficult for being corroded by boric acid water, and intensity is higher.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic external view of FIG. 1;
FIG. 3 is a disassembled view of the parts of FIG. 1;
FIG. 4 is a schematic view of the gripper and torsion spring of FIG. 1;
FIG. 5 is a side view of FIG. 4;
fig. 6 is a schematic structural view of the special waste container of the present invention.
In the figure: 1. a main body; 2. a transition sleeve; 3. a jacket; 4. a positioning mechanism; 5. a dedicated head; 6. a compression spring; 7, a guide mechanism; 8. a gripper; 9. a torsion spring; 10. a lower spring; 11. a long rod; 12. a pin; 13. a guide device; unlocking the slot; 15. a waste collection body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment provides a remote bolt dismantling and automatic gripping tool, which is structurally shown in figures 1, 2 and 3, mainly comprises a main body 1, a transition sleeve 2 and an outer sleeve 3, and is all made of stainless steel.
The main body 1 comprises an intermediate body and a connecting body at the tail end, the intermediate body and the connecting body are of cylindrical structures with different diameters, and the diameter of the intermediate body is larger than that of the tail end; a long rod 11 is arranged outside the connecting body of the main body 1, and the length of the long rod 11 is determined according to the actual field operation distance; the upper end of the connecting body is provided with a round hole, and the main body 1 is connected with the long rod 11 through a pin 12.
The intermediate outer wall of the main body 1 is provided with two positioning mechanisms 4, the positioning mechanisms 4 of the embodiment are screws, and are fixed on the main body 1 through threaded connection, so that the main body 1 and the transition sleeve 2 can move relative to each other for positioning and guiding. The mounting direction of the positioning mechanism 4 is perpendicular to the axial direction of the main body 1.
The top end of the main body 1 is provided with a special head part 5, and the special head part 5 is fixed at the top end of the main body 1 in a welding or detachable mode and is used for preventing loosening damage and detaching bolts; the special head 5 is processed according to the type of the bolt to be dismantled on site, and is adapted to the shape of the bolt to be dismantled. For example, the dedicated head 5 may be provided in the shape of a straight or cruciform screwdriver, according to the cross or straight shape of the head of the bolt to be dismantled; when the bolt to be removed is a hexagon bolt, the special head part 5 can be clamped on the head part of the bolt to be removed for screwing through a groove in the shape of the hexagon bolt. When different types of bolts are dismantled, the special head part 5 can be replaced, and other small-size parts except the bolts can also be dismantled through the shape design of the special head part 5, so that the device is convenient to use and wide in application range.
The transition sleeve 2 is of a cylindrical structure, the side wall of the transition sleeve is provided with an L-shaped guide chute, and the middle of the bottom of the transition sleeve is provided with a through hole for the special head 5 to pass through; the transition sleeve 2 is arranged on the main body 1 through a positioning mechanism 4, and the main body 1 can move relatively in an L-shaped guide chute of the transition sleeve 2 under the guide action of the positioning mechanism 4; further, the intermediate of the main body 1 is located in the transition sleeve 2, the special head 5 penetrates through the bottom surface of the transition sleeve 2, the positioning mechanism 4 is located in an L-shaped guide sliding groove of the transition sleeve 2, the positioning mechanism 4 can slide up and down on a vertical section of the L-shaped guide sliding groove, relative motion is generated between the main body 1 and the transition sleeve 2, when the positioning mechanism 4 is located on a horizontal section of the L-shaped guide sliding groove, relative motion cannot be generated between the main body 1 and the transition sleeve 2, and therefore limiting and locking functions are achieved.
Still be equipped with compression spring 6 between the midbody of main part 1 and the 2 bottom surfaces of transition cover for balanced main part 1 and the dead weight of stock instrument 11 under water, and produce between main part 1 and the transition cover 2 and rock when can avoiding using, thereby strengthen the structural stability of this device.
Two connecting rods are arranged at the lower part of the bottom surface of the transition sleeve 2 and are used for connecting the outer sleeve 3. Two guide mechanisms 7 are further arranged on the connecting rod, the guide mechanisms 7 are fixed on the connecting rod of the transition sleeve 2 in a threaded connection mode, and the transition sleeve 2 and the outer sleeve 3 are positioned and guided in a mutual movement mode. The lower end of one of the connecting rods is provided with a cam mechanism for opening and closing the gripper 8.
The outer sleeve 3 is of a cylindrical structure, a guide sliding groove is formed in the side wall of the outer sleeve, and a through hole is formed in the middle of the bottom of the outer sleeve so that a bolt to be disassembled can penetrate through the through hole; the outer sleeve 3 is arranged on a connecting rod at the lower part of the transition sleeve 2 through a guide mechanism 7, and the transition sleeve 2 can axially move with the outer sleeve 3 under the guide action of the guide mechanism 7. Furthermore, the special head 5 is positioned in the barrel of the outer sleeve 3, the guide mechanism 7 is positioned in the guide sliding groove of the outer sleeve 3, and the guide mechanism 7 can slide up and down in the guide sliding groove, so that the transition sleeve 2 and the outer sleeve 3 move relatively.
The inner wall of the outer sleeve 3 is provided with a gripper 8 for gripping and clamping the bolt to be dismantled, and the bolt-removing clamp has the function of preventing the bolt from accidentally falling. When the transition sleeve 2 and the outer sleeve 3 are relatively moved, as shown in fig. 4 and 5, the cam mechanism on the connecting rod of the transition sleeve 2 is inserted downwards into the gripper 8, so that the gripper 8 can be opened. The gripper 8 is provided with a torsion spring 9, which keeps the gripper 8 in a closed state when not under stress. When the bolt to be dismantled exits the threaded hole and is in a free state, the device is lifted upwards to enable the cam mechanism to exit the gripper 8 upwards, the gripper 8 is closed under the action of the torsion spring 9, and therefore the bolt to be dismantled is automatically gripped and left in the device, and the bolt is prevented from falling to other positions.
The outer sleeve 3 is provided with a spring 10, so that under the condition that the outer sleeve 3 is free from external force, the cam mechanism of the transition sleeve 2 is far away from the gripper 8 under the action of the spring 10, and the gripper 8 is always in a closed state under the action of the torsion spring 9. The spring 10 can be arranged at the lower part of the bottom surface of the transition sleeve 2, or a boss can be arranged on the inner wall of the outer sleeve 10, and the spring 10 is clamped between the boss and the bottom surface of the transition sleeve 2.
The present embodiment also provides a special waste container for underwater remote bolt release for use with the above remote bolt removal and automatic gripping tool. The structure of the device is shown in fig. 4 and mainly comprises a guide 13, an unlocking groove 14 and a waste collection body 15.
The unlocking groove 14 is of a cylinder or ring structure, the outer diameter of the unlocking groove is larger than that of the outer sleeve 3 of the remote bolt dismounting and automatic gripping tool, and the inner diameter of the unlocking groove is smaller than that of the outer sleeve 3; the waste collection body 15 is located below the unlocking slot 14. When the bolt dismounting device is used, the unlocking groove 14 can be abutted against the bottom surface of the outer sleeve 3, so that the outer sleeve 3 and the transition sleeve 2 generate relative displacement, the cam mechanism of the connecting rod at the lower part of the transition sleeve 2 is inserted into the gripper 8 to be opened, and the dismounted bolt falls down and passes through the unlocking groove 14 and falls into the waste collection main body 15.
In order to facilitate the alignment of the outer sleeve 3 and the unlocking groove 14, a guide device 13 is arranged above the unlocking groove 14, and the guide device 13 is integrally in a bell-mouthed shape and comprises a cylindrical wall with the bottom having the same outer diameter as the unlocking groove 14 and a thin-walled structure in the shape of a frustum at the upper part. To facilitate the observation of the contact of the jacket 3 with the unlocking slot 14, the guide 13 can also be provided with a through opening.
The embodiment also provides a use method of the remote bolt dismantling and automatic gripping tool and the special waste container, which sequentially comprises the following steps:
1. underwater centering of special tools: manual operation specialized tool through the guider of 3 lower parts of overcoat, makes instrument and bolt carry out preliminary centering under water, and anticlockwise rotation specialized tool pushes down main part 1 through stock 11, makes special head 5 match with the bolt.
2. Anti-loosening replacement, bolt screwing and grabbing: when the positioning mechanism 4 of the main body 1 presses the main body 1 down at the lower position of the guide sliding groove of the transition sleeve 2, the cam mechanism on the transition sleeve 2 acts on the gripper 8 to enable the gripper 8 to be in an open state, the special head 5 can contact the bolt at the moment, the tool main body 1 is rotated anticlockwise or clockwise to enable the special head 5 to enter the bolt adapting hole, and the tool main body 1 is rotated anticlockwise to perform bolt looseness prevention and damage and bolt screwing operation. And as the bolt gradually exits from the threaded hole, the tool gripper 8 automatically grips the bolt by virtue of the torsion spring 9, so that the bolt is locked on the tool.
3. Releasing the bolt: the tool and the bolt are moved to an underwater remote distance, the bolt is separated from the special waste container, the tool outer sleeve 3 is limited to rotate through the unlocking groove 14 of the special waste collecting barrel, the main body 1 is lifted to enable the positioning mechanism 4 to be positioned at the uppermost end of the transition sleeve 2L-shaped guide sliding groove, and the main body 1 is rotated clockwise to enable the positioning mechanism 4 to be locked in the transition sleeve 2L-shaped guide sliding groove. At this time, the special tool body 1 is pressed downwards, the cam mechanism on the transition sleeve 2 acts on the gripper 8, so that the gripper 8 is in an open state, the special head 5 cannot contact the bolt, and the bolt automatically falls into the special waste collection body 15.
The technical equipment design of the embodiment not only can be suitable for detaching bolts at a long distance (particularly suitable for the distance more than 50 cm), but also can be suitable for detaching other small-size parts at a long distance which is inconvenient to detach directly by using existing tools such as a spanner, a screwdriver and the like through designing different special heads 5, for example, the special heads are longer than 20cm or the operating space is narrow and the like. The technical scheme is successfully applied to maintenance of the internal components of the nuclear reactor of the conventional nuclear power station, and has a good effect. The project is used as a special project for overhaul of a certain nuclear power unit and is the special project which is successfully implemented and completed earliest in the special projects for overhaul. Specifically, the device has the following functions and characteristics:
1. the damage function of the underwater long-distance bolt anti-loose structure can be realized;
2. the underwater remote bolt dismantling function can be realized;
3. the underwater remote bolt screwing function can be realized;
4. the underwater remote bolt transfer function can be realized;
5. the tool has the characteristics of portability and reliability;
6. the device adopts stainless steel processing, is difficult for being corroded by boric acid water, and intensity is higher.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (9)
1. The utility model provides a remote bolt is demolishd and automatic gripping tool which characterized in that: comprises a main body (1), a transition sleeve (2) and an outer sleeve (3);
the top end of the main body (1) is provided with a special head (5) for dismounting the bolt, and the special head is matched with the bolt in shape; the outer wall of the main body (1) is provided with a positioning mechanism (4), the side wall of the transition sleeve (2) is provided with a guide sliding groove, and the positioning mechanism (4) is positioned in the guide sliding groove and can move along the guide sliding groove; the bottom of the transition sleeve (2) is provided with a through hole for the special head (5) to pass through;
the lower part of the transition sleeve (2) is provided with a connecting rod for connecting the outer sleeve (3); the connecting rod is also provided with a guide mechanism (7); the side wall of the outer sleeve (3) is provided with a guide sliding groove, and the guide mechanism (7) is positioned in the guide sliding groove and can move along the guide sliding groove; the bottom of the outer sleeve (3) is provided with a through hole, so that a bolt can pass through the through hole.
2. A remote bolt removal and automatic gripping tool as claimed in claim 1, wherein: the inner wall of the outer sleeve (3) is provided with a gripper (8), and the gripper (8) is provided with a torsion spring (9) so that the gripper (8) is in a closed state when not stressed.
3. A remote bolt removal and automatic gripping tool as claimed in claim 2, wherein: the lower end of the connecting rod of the transition sleeve (2) is provided with a cam mechanism for opening and closing the gripper (8).
4. A remote bolt removal and automatic gripping tool as claimed in claim 3, wherein: the tail end of the main body (1) is connected with a long rod (11).
5. A remote bolt removal and automatic gripping tool as claimed in claim 4, wherein: and a compression spring (6) is also arranged between the intermediate body of the main body (1) and the bottom surface of the transition sleeve (2).
6. A remote bolt removal and automatic gripping tool as claimed in claim 1, 2, 3, 4 or 5, wherein: the guide sliding groove of the side wall of the transition sleeve (2) is L-shaped and comprises a horizontal section and a vertical section, and the positioning mechanism (4) can slide on the horizontal section and the vertical section of the guide sliding groove.
7. A remote bolt removal and automatic gripping tool as claimed in claim 1, 2, 3, 4 or 5, wherein: the lower part of the bottom surface of the transition sleeve (2) is provided with a lower spring (10), and the tail end of the lower spring (10) is the tail end of a cam mechanism which is lower than the connecting rod of the transition sleeve (2) in the natural state.
8. A remote bolt removal and automatic gripping tool as claimed in claim 1, 2, 3, 4 or 5, wherein: the main body (1), the transition sleeve (2) and the outer sleeve (3) are made of stainless steel.
9. A special waste container for remote bolt disengagement, characterized in that: for use with a remote bolt removal and automatic gripping tool as claimed in claim 1, 2, 3, 4 or 5, comprising an unlocking slot (14) and a waste collection body (15); the outer diameter of the unlocking groove (14) is larger than that of the outer sleeve (3), and the inner diameter of the unlocking groove is smaller than that of the outer sleeve (3); the waste collection body (15) is located below the unlocking slot (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921926381.0U CN212287472U (en) | 2019-11-08 | 2019-11-08 | Remote bolt is demolishd and automatic gripping means and supporting waste container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921926381.0U CN212287472U (en) | 2019-11-08 | 2019-11-08 | Remote bolt is demolishd and automatic gripping means and supporting waste container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212287472U true CN212287472U (en) | 2021-01-05 |
Family
ID=73932568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921926381.0U Withdrawn - After Issue CN212287472U (en) | 2019-11-08 | 2019-11-08 | Remote bolt is demolishd and automatic gripping means and supporting waste container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212287472U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744492A (en) * | 2019-11-08 | 2020-02-04 | 中核核电运行管理有限公司 | Remote bolt dismantling and automatic grabbing tool and using method thereof |
| CN113547482A (en) * | 2021-07-27 | 2021-10-26 | 三门核电有限公司 | Long-rod type automatic fastening device |
-
2019
- 2019-11-08 CN CN201921926381.0U patent/CN212287472U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744492A (en) * | 2019-11-08 | 2020-02-04 | 中核核电运行管理有限公司 | Remote bolt dismantling and automatic grabbing tool and using method thereof |
| CN110744492B (en) * | 2019-11-08 | 2023-07-14 | 中核核电运行管理有限公司 | Remote bolt dismantling and automatic grabbing tool and application method thereof |
| CN113547482A (en) * | 2021-07-27 | 2021-10-26 | 三门核电有限公司 | Long-rod type automatic fastening device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210105 Effective date of abandoning: 20230714 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210105 Effective date of abandoning: 20230714 |