CN211305341U - Special fixture for butt joint of reactor core thermocouples - Google Patents
Special fixture for butt joint of reactor core thermocouples Download PDFInfo
- Publication number
- CN211305341U CN211305341U CN201921990794.5U CN201921990794U CN211305341U CN 211305341 U CN211305341 U CN 211305341U CN 201921990794 U CN201921990794 U CN 201921990794U CN 211305341 U CN211305341 U CN 211305341U
- Authority
- CN
- China
- Prior art keywords
- fixing frame
- screw
- movable block
- thermocouple
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model belongs to the technical field of nuclear power maintenance, concretely relates to reactor core thermocouple butt joint special fixture. This disclosed embodiment can take welded thermocouple through the fixed block and the movable block centre gripping of every mount, and the movable block can be through adjusting about rotatory first screw is accomplished, convenient operation to effectual fixed and support of taking welded thermocouple, guarantee welding maneuverability and welding quality.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power maintenance, concretely relates to reactor core thermocouple butt joint special fixture.
Background
A thermocouple of a pressurized water reactor nuclear power station belongs to a reactor core temperature measuring system and is used for measuring the outlet temperature of a reactor core. In the maintenance of the thermocouple, because the diameter of the thermocouple wire in the core thermocouple armored cable is only 0.5mm, in the welding process of the thermocouple and the connector, an operator is difficult to better hold and control the thermocouple and the connector, so that the welding of the thermocouple and the connector becomes a work with high technical difficulty.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art, the special clamp for the butt joint of the core thermocouples is provided.
According to an aspect of the embodiments of the present disclosure, there is provided a core thermocouple junction special fixture including: a bottom plate, a plurality of fixing frames;
each fixing frame comprises a side plate, a top plate, a fixing block, a movable block and a first screw, the upper surfaces of the fixing blocks are positioned on the same plane, and the fixing block and the movable block of each fixing frame are used for clamping a thermocouple and/or a connector to be welded;
for each fixing frame, a side plate of the fixing frame is vertically connected with a top plate, and the side plate is vertically connected with the bottom plate; the fixed block of the fixed frame is fixedly connected to the side plate, the top plate of the fixed frame is provided with a thread through hole which is arranged along the axial direction, the bottom end of a first screw of the fixed frame penetrates through the thread through hole and is fixedly connected with the top end of the movable block on the lower side of the top plate, and the movable block can move up and down by rotating the first screw; the upper surface of the fixed block is provided with a first groove parallel to the side surface of the side plate, the lower surface of the movable block is provided with a second groove parallel to the side surface of the side plate, when the fixed block is buckled with the movable block, the first groove and the second groove are encircled to form a through hole, and the through hole is in interference fit with the thermocouple and/or the connector.
In a possible implementation manner, the bottom plate is provided with a linear sliding groove which is opened along the radial direction, and the sliding groove penetrates through the upper surface and the lower surface of the bottom plate;
each fixing frame further comprises a second screw;
and aiming at each fixing frame, the bottom end of the side plate of the fixing frame is provided with a thread through hole which is arranged along the axial direction, and a second screw of the fixing frame penetrates through the sliding groove and is screwed into the thread through hole.
In a possible implementation manner, for each fixing frame, when the second screw of the fixing frame is screwed away from the bottom plate, the fixing frame can move along the sliding groove.
In a possible implementation manner, for each fixing frame, when the second screw of the fixing frame is screwed and pressed on the lower surface of the bottom plate, the fixing frame is fixed on the bottom plate.
The beneficial effects of the utility model reside in that: the embodiment of the disclosure can clamp the thermocouple with the welded through the fixed block and the movable block of each fixed frame, and the movable block can complete up-and-down adjustment through rotating the first screw, so that the operation is convenient, the thermocouple and/or the connector with the welded can be effectively fixed and supported, and the welding operability and the welding quality are ensured.
Drawings
FIG. 1 is a front view of a core thermocouple docking specific fixture shown in accordance with an exemplary embodiment.
FIG. 2 is a top view of a core thermocouple docking specific fixture shown in accordance with an exemplary embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a front view of a core thermocouple docking specific fixture shown in accordance with an exemplary embodiment.
FIG. 2 is a top view of a core thermocouple docking specific fixture shown in accordance with an exemplary embodiment. As shown in fig. 1 and 2, the core thermocouple junction-dedicated jig may include: the fixing device comprises a base plate 10 and a plurality of fixing frames 11, it should be noted that a suitable number of fixing frames can be selected according to needs, and the number of fixing frames is not limited in the embodiment of the disclosure.
Each fixing frame 11 may include a side plate 12, a top plate 13, a fixed block 14, a movable block 15 and a first screw 16, and upper surfaces of the fixed blocks 14 are located on the same plane; the shape of each fixing frame can be consistent.
For each fixing frame 11, the side plate 12 of the fixing frame 11 may be vertically connected with the top plate 13, and the side plate 12 may be vertically connected with the bottom plate 10 (for example, the side plate 12 may be connected with the bottom plate 10 by a pin through a screw, and the connection manner between the side plate and the bottom plate is not limited in the embodiment of the present disclosure); a fixed block 14 of the fixed frame 11 is fixedly connected to the side plate 12, a top plate 13 of the fixed frame 11 may have a threaded through hole formed along an axial direction, a bottom end of a first screw 16 may be screwed into the threaded through hole and fixedly connected to a top end of a movable block 15 on a lower side of the top plate 13 through the threaded through hole, the first screw 16 may be rotated in a first direction, so that the movable block 15 moves downward, and the first screw 16 may be rotated in a second direction opposite to the first direction, so that the movable block 15 moves downward (it should be noted that an applicable type of screw may be selected as the first screw 16 as needed, the type of the first screw 16 is not limited in the embodiment of the present disclosure); the upper surface of the fixed block 14 can be provided with a first groove parallel to the side surface of the side plate 12, the lower surface of the movable block 15 can be provided with a second groove parallel to the side surface of the side plate 12, the first screw 16 is rotated downwards until the upper surface of the fixed block 14 is attached to the lower surface of the movable block 15, the first groove and the second groove can surround to form a through hole, the through holes of the fixed frames 11 can be positioned on the same straight line, the through hole and the thermocouple and/or the connector can form interference fit, in one example, the movable block 15 of one fixed frame can be rotated upwards, the thermocouple to be welded is placed in the first groove of the fixed block 14 of the fixed frame, the movable block 15 is rotated downwards until the movable block 15 is buckled with the corresponding fixed block 14, thereby effectively clamping and fixing the thermocouple, the movable block 15 of another fixed frame can be rotated upwards, one end of the connector to be welded is placed in the first groove of the fixed block 14 of the other fixed frame, the movable block 15 is rotated downwards until the movable block 15 is buckled with the corresponding fixed block 14, so that the plug-in unit is effectively clamped and fixed, and thus, the fixed thermocouple and the plug-in unit can be conveniently welded.
The embodiment of the disclosure can clamp the thermocouple with the welded through the fixed block and the movable block of each fixed frame, and the movable block can complete up-and-down adjustment through rotating the first screw, so that the operation is convenient, the thermocouple and/or the connector with the welded can be effectively fixed and supported, and the welding operability and the welding quality are ensured.
In a possible implementation, the base plate 10 has a radially open rectilinear sliding groove 18, which sliding groove 18 can penetrate the upper and lower surfaces of the base plate 10; each holder 11 may further comprise a second screw 17;
for each fixing frame 11, the bottom end of the side plate 12 of the fixing frame 11 may have a threaded through hole opened along the axial direction, and the second screw 17 of the fixing frame 11 may pass through the sliding groove 18 and be screwed into the threaded through hole. When the second screw 17 of the fixing frame 11 is screwed away from the bottom plate 10, the fixing frame 11 can move along the sliding slot 18. When the second screw 17 of the fixing frame 11 is screwed to press the lower surface of the bottom plate 10, the fixing frame 11 is fixed on the bottom plate 10. Therefore, the distance between the fixing frames 11 can be adjusted according to the requirement of welding operation, so that the distance between the thermocouple and the connector can be accurately adjusted, and different welding operation requirements can be flexibly used.
In a possible implementation manner, the special core thermocouple docking jig may further include a support rod 19, and the support rod 19 may be fixedly connected (e.g., vertically connected) to the bottom plate 10, and may be clamped by a vise, so that the special core thermocouple docking jig is at different angles to facilitate the welding operation.
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 (4)
1. A special clamp for core thermocouple butt joint is characterized by comprising: a bottom plate, a plurality of fixing frames;
each fixing frame comprises a side plate, a top plate, a fixing block, a movable block and a first screw, the upper surfaces of the fixing blocks are positioned on the same plane, and the fixing block and the movable block of each fixing frame are used for clamping a thermocouple and/or a connector to be welded;
for each fixing frame, a side plate of the fixing frame is vertically connected with a top plate, and the side plate is vertically connected with the bottom plate; the fixed block of the fixed frame is fixedly connected to the side plate, the top plate of the fixed frame is provided with a thread through hole which is arranged along the axial direction, the bottom end of a first screw of the fixed frame penetrates through the thread through hole and is fixedly connected with the top end of the movable block on the lower side of the top plate, and the movable block can move up and down by rotating the first screw; the upper surface of the fixed block is provided with a first groove parallel to the side surface of the side plate, the lower surface of the movable block is provided with a second groove parallel to the side surface of the side plate, when the fixed block is buckled with the movable block, the first groove and the second groove are encircled to form a through hole, and the through hole is in interference fit with the thermocouple and/or the connector.
2. The special clamp for the in-core thermocouple junction according to claim 1, wherein the bottom plate is provided with a linear sliding groove which is opened along the radial direction and penetrates through the upper surface and the lower surface of the bottom plate;
each fixing frame further comprises a second screw;
and aiming at each fixing frame, the bottom end of the side plate of the fixing frame is provided with a thread through hole which is arranged along the axial direction, and a second screw of the fixing frame penetrates through the sliding groove and is screwed into the thread through hole.
3. The reactor core thermocouple docking dedicated fixture as claimed in claim 2, wherein for each fixing frame, the fixing frame can move along the sliding groove when the second screw of the fixing frame is screwed away from the bottom plate.
4. The core thermocouple junction dedicated clamp according to claim 2, wherein, for each fixing frame, the fixing frame is fixed on the bottom plate when the second screw of the fixing frame is screwed to press the lower surface of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990794.5U CN211305341U (en) | 2019-11-18 | 2019-11-18 | Special fixture for butt joint of reactor core thermocouples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990794.5U CN211305341U (en) | 2019-11-18 | 2019-11-18 | Special fixture for butt joint of reactor core thermocouples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211305341U true CN211305341U (en) | 2020-08-21 |
Family
ID=72052748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921990794.5U Active CN211305341U (en) | 2019-11-18 | 2019-11-18 | Special fixture for butt joint of reactor core thermocouples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211305341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744244A (en) * | 2019-11-18 | 2020-02-04 | 中核核电运行管理有限公司 | Special fixture for butt joint of reactor core thermocouples |
-
2019
- 2019-11-18 CN CN201921990794.5U patent/CN211305341U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744244A (en) * | 2019-11-18 | 2020-02-04 | 中核核电运行管理有限公司 | Special fixture for butt joint of reactor core thermocouples |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211305341U (en) | Special fixture for butt joint of reactor core thermocouples | |
| CN105252071A (en) | Steel tube cutting device | |
| CN104858593A (en) | Positioning tool clamp for precision box-shaped sensor welding and using method of positioning tool clamp for precision box-shaped sensor welding | |
| CN202308744U (en) | Fixing clamp used for cable welding of electric connector | |
| CN110744244A (en) | Special fixture for butt joint of reactor core thermocouples | |
| CN211219383U (en) | Lead terminal welding positioning device | |
| CN204221444U (en) | A kind of round nut breach processing and positioning device | |
| CN209830538U (en) | Fixing device for welding plug connector | |
| CN210499866U (en) | Clamp device for solving problem that machining precision is influenced by size of outer diameter of pipe fitting | |
| CN210942874U (en) | Food safety inspection is deposited case with sample | |
| CN105458774A (en) | Clamp for processing steel backs | |
| CN204771266U (en) | Be used for accurate box sensor welded location frock clamp | |
| CN208195869U (en) | A kind of clamp for machining for needle-shaped product | |
| CN217344592U (en) | Camera casing CNC adds clamping apparatus | |
| CN108247379A (en) | A kind of apparatus for fastening | |
| CN211387181U (en) | Centre lettering clamping table | |
| CN211680662U (en) | Wire positioning structure of wire terminal welding positioning device | |
| CN215746965U (en) | Auxiliary tool for fixing device in manual soldering process | |
| CN206010240U (en) | Tensioning hydro-cylinder welds dedicated positioning device | |
| CN217404001U (en) | Tension tester | |
| CN210579546U (en) | Composite circuit board production clamp | |
| CN215615901U (en) | Laser machine cutting jig fixing device | |
| CN215148342U (en) | Bathroom product adds clamping apparatus | |
| CN211438758U (en) | Low-pass welding platform | |
| CN203367718U (en) | A portable single-head or multi-head cable plug clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |