CN214446053U - Nuclear power station water pump shaft tile thermometer dismouting device - Google Patents
Nuclear power station water pump shaft tile thermometer dismouting device Download PDFInfo
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- CN214446053U CN214446053U CN202023299636.0U CN202023299636U CN214446053U CN 214446053 U CN214446053 U CN 214446053U CN 202023299636 U CN202023299636 U CN 202023299636U CN 214446053 U CN214446053 U CN 214446053U
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Abstract
The utility model belongs to the technical field of the nuclear power station rotating equipment overhauls engineering, concretely relates to nuclear power station water pump axle bush thermometer dismouting device, include: a T-shaped handle and a disassembling and assembling rod; the T-shaped handle is fixedly connected with the dismounting rod in a magnetic attraction way; the dismouting pole includes: the device comprises a hexagonal connector, a U-shaped groove and a U-shaped plug; the disassembling and assembling rod is of a hollow cylindrical structure, and a rod U-shaped groove is formed in the outer surface of the disassembling and assembling rod; the top of dismouting pole is provided with the hexagonal and connects, it has U type plug to open the bottom of dismouting pole. The device and the dismounting method thereof effectively shorten the working time, improve the maintenance efficiency and reduce the irradiation time of the nuclear power station staff.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power station rotates the equipment maintenance engineering, concretely relates to nuclear power station water pump axle bush thermometer dismouting device.
Background
The bearing bushes of various types of pumps and motors of a certain nuclear power station are provided with sensors for measuring temperature, and the pumps are protected to jump when the temperature exceeds a set limit value, so that the pump body is prevented from being damaged due to overheating, and therefore, a bearing bush thermometer plays an important role in monitoring the running state of the pumps. In pump and motor's disintegration maintenance, need carry out bearing bush thermometer probe demolish and installation work, need not only carry out correct dismouting in order to ensure thermometer probe and extend the integrality of cable to it, but also need protect bearing bush ebonite faying face, avoid because of threaded connection's too big dark gold face damage that leads to of moment.
The pump shaft bush thermometer is fixed through the screw locking head, and the following problems often appear in the actual dismounting process:
1. when the joint of the thermometer extension line and the locking head is disassembled and assembled, the protective layer is damaged, so that lubricating oil leaks outwards along the damaged part during the operation of the pump;
2. the locking head and the bearing bush are in threaded connection, and fastening torque cannot be measured during installation. The moment is too large, so that the combined surface of the black metal is protruded and deformed, the damaged bearing bush black metal needs to be polished and repaired again, and the moment is too small, so that a thermometer is not firmly fixed, a gap exists between a temperature probe and the bearing bush, the accuracy of temperature measurement is influenced, and the temperature protection of the bearing bush is disabled;
3. the thermometer is difficult to mount and fix and is difficult to dismount, so that the overhaul time can be prolonged, and the collective radiation dose of maintenance personnel can be increased for overhaul of a primary circuit water pump of a nuclear power station.
Therefore, the nuclear power station water pump bearing bush thermometer dismounting device and the dismounting method thereof need to be designed and developed aiming at the technical problems so as to overcome the defects of the prior art, improve the maintenance quality and reduce the workload and the radiation dose of maintenance personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing a nuclear power station water pump axle bush thermometer dismouting device for effectively solve current water pump axle bush thermometer dismouting in-process thermometer extension line and the easy impaired, the difficulty of dismantling, operating personnel have the technical problem that the dose exceeds standard risk because of the dismouting time overlength of protective layer of locking head.
The technical scheme of the utility model:
a nuclear power station water pump shaft tile thermometer dismouting device includes: a T-shaped handle and a disassembling and assembling rod; the T-shaped handle is fixedly connected with the dismounting rod in a magnetic attraction way; the dismouting pole includes: the device comprises a hexagonal connector, a U-shaped groove and a U-shaped plug; the disassembling and assembling rod is of a hollow cylindrical structure, and a rod U-shaped groove is formed in the outer surface of the disassembling and assembling rod; the top of dismouting pole is provided with the hexagonal and connects, it has U type plug to open the bottom of dismouting pole.
Hexagonal interface A has been seted up to the upper end surface of T type handle, and hexagonal interface B has been seted up to the lower extreme surface of T type handle, hexagonal interface A and the coaxial setting of hexagonal interface B.
The hexagonal joint is coaxially arranged with the hexagonal joint A and the hexagonal joint B, and is made of a magnetic material; the hexagonal connector A and the hexagonal connector B are both internally provided with magnetic adsorption materials.
The hexagonal connector B of the T-shaped handle and the hexagonal connector of the dismounting rod are fixed in a dismounting and mounting mode through magnetic adsorption.
The U-shaped plug is inserted into a straight groove of the fixed locking head of the pump shaft bush thermometer probe, and the size of the U-shaped plug is matched with the size of the straight groove on the fixed locking head of the pump shaft bush thermometer probe.
And an extension line of a pump shaft bush thermometer is placed in the U-shaped groove.
The utility model discloses technological effect:
(1) the moment cannot be fixed when the bearing bush thermometer is mounted and dismounted in the current period, the moment is determined to be approximately equal manually only by manpower according to experience, the moment sensing ranges of different workers are greatly different, and the bearing bush and solid metal joint surface is easy to damage or the thermometer is not fastened in place. The device adopts a T-shaped structure, a hexagonal interface is additionally arranged on a T-shaped handle and is matched with a standard torque wrench interface, when the torque output is required, a torque wrench applies force to a thermometer dismounting tool, so that qualified torque of the thermometer during mounting or dismounting can be ensured, and manual dismounting and mounting are facilitated;
(2) the device adopts a U-shaped groove structure to avoid the damage of the thermometer lead,
when the conventional thermometer dismounting tool is used, the lead of the thermometer can be rubbed, and the lead can be seriously damaged after the thermometer element is dismounted and mounted for many times. The thermometer dismounting connecting rod used by the device adopts a U-shaped groove structure, when the thermometer dismounting connecting rod is used, the thermometer lead is placed along the U-shaped groove, and when the tool rotates in the thermometer mounting hole, the thermometer lead cannot be wound and rubbed in the middle of the U-shaped groove, so that the lead is prevented from being damaged in the dismounting process, the cable protection effect is realized, and the damage is avoided;
(3) this assembly and disassembly tools adopts split type design, can change the plug at any time according to actual need (be not limited to U type plug), can expand to apply to the locking device of other types and size.
Because the sizes of the bearing bush thermometer probes and the locking heads of different sizes and types are different, the sizes of the bearing bush thermometers of the power station water pump are mainly two types, namely 5mm and 8mm, and the corresponding locking heads are M12X 1.8 and M8X 1.0. The U-shaped plug is a convex part extending from the U-shaped groove, the radial two ends of the thermometer locking head are respectively provided with a notch, the U-shaped plug is placed in the corresponding position of the notch of the thermometer locking head to be installed or dismantled, the U-shaped plug and the notch are mutually matched, the thermometer locking head can be driven by the device to rotate to carry out the operation of disassembly or installation, but the diameters of the thermometer locking head and the U-shaped groove are required to be approximately equal, so that the U-shaped plug is just matched with the thermometer locking head; the utility model discloses a also with magnetism hexagon socket head interface between nuclear power station pump shaft bush thermometer dismouting device's handle and the U type plug, can choose not unidimensional U type plug for use according to the actual demand of site work to the at utmost ensures that the instrument size satisfies the site use demand, improves operating mass with
(4) The utility model discloses a nuclear power station water pump shaft tile thermometer dismouting device and dismouting method thereof effectively shortens operating time, has improved maintenance efficiency, has reduced the nuclear power station staff and has received the irradiation time.
(5) The device is small in size and convenient to carry to a working site, and the space required by storage and accommodation is reduced by a split type connection mode;
(6) the device can be applied to the disassembly and assembly of the water pump thermometer of the nuclear power station, and can be applied to the disassembly and assembly of other instrument sensors in similar installation modes in an expanded way.
Drawings
Fig. 1 is a schematic view of the overall structure of a dismounting device for a nuclear power station water pump shaft bush thermometer designed by the utility model;
FIG. 2 is a front view of the U-shaped groove structure of the present invention;
fig. 3 is a side view of the U-shaped groove structure of the present invention;
wherein: 1-T-shaped handle, 2-hexagonal connector A and 3-hexagonal connector; 4, U-shaped grooves; 5, a U-shaped plug, 6-pump shaft bush thermometer extension line, 7-pump shaft bush thermometer probe fixing locking head, 8-bearing bush thermometer, 9-dismounting rod and 10-hexagonal interface B
Detailed Description
The following description of the present invention will be provided in conjunction with the accompanying drawings and the detailed description of the embodiments,
a nuclear power station water pump shaft tile thermometer dismouting device includes: a T-shaped handle 1 and a dismounting rod 9; the T-shaped handle 1 is fixedly connected with the dismounting rod 9 through magnetic attraction; the disassembling and assembling pole 9 includes: the device comprises a hexagonal connector 3, a U-shaped groove 4 and a U-shaped plug 5; the disassembling and assembling rod 9 is of a hollow cylindrical structure, and a rod U-shaped groove 4 is formed in the outer surface of the disassembling and assembling rod 9; the top of dismouting pole 9 is provided with hexagonal joint 3, open the bottom of dismouting pole 9 has U type plug 5.
The upper end surface of the T-shaped handle 1 is provided with a hexagonal connector A2, the lower end surface of the T-shaped handle 1 is provided with a hexagonal connector B10, and the hexagonal connector A2 and the hexagonal connector B10 are coaxially arranged.
The hexagonal joint 3 is coaxially arranged with the hexagonal joint A2 and the hexagonal joint B10, and the hexagonal joint 3 is made of magnetic materials; the hexagonal connector A2 and the hexagonal connector B10 are both internally provided with magnetic adsorption materials.
The hexagonal connector B10 of the T-shaped handle 1 and the hexagonal connector 3 of the dismounting rod 9 are fixed in a dismounting way through magnetic adsorption.
The U-shaped plug 5 is inserted into a straight groove of the fixed locking head of the pump shaft bush thermometer probe, and the size of the U-shaped plug 5 is matched with that of the straight groove on the fixed locking head of the pump shaft bush thermometer probe.
And an extension line of a pump shaft bush thermometer is placed in the U-shaped groove 4.
The method for disassembling and assembling the device for the water pump shaft bushing temperature meter of the nuclear power station comprises the following steps:
the method comprises the following steps: disassembling a bearing bush thermometer probe:
step 1.1: selecting a U-shaped plug with a corresponding size according to the size of the fixing locking head of the pump shaft bush thermometer probe, inserting the U-shaped plug into a linear groove of the fixing locking head of the pump shaft bush thermometer probe, and placing a thermometer extension cable in the U-shaped groove;
step 1.2: the T-shaped handle is used, the pump shaft bush thermometer probe fixing locking head is withdrawn in an anticlockwise rotating mode, the thermometer extension cable is arranged in the U-shaped groove 4 and in the middle position of the pump shaft bush thermometer probe fixing locking head in the operation process, and when the T-shaped handle is withdrawn in a rotating mode, the pump shaft bush thermometer probe fixing locking head and the U-shaped groove are not in contact with the pump shaft bush thermometer extension cable, so that the cable is prevented from being damaged; for the thermometer which has larger mounting torque and is not easy to disassemble, an inner hexagonal wrench with a corresponding size is connected at the magnetic hexagonal interface A;
step two: thermometer probe for mounting bearing bush
Step 2.1: selecting a U-shaped plug with a corresponding size according to a fixed locking head of a pump shaft bush thermometer probe, clockwise rotating the locking head by hand until the locking head cannot be fastened manually, inserting the U-shaped plug into a straight clamping groove on the locking head, and connecting and fixing the U-shaped plug with a magnetic hexagonal interface A of a T-shaped handle by using a torque wrench;
step 2.2: setting a torque value corresponding to a torque wrench according to the size of a locking head thread, placing a thermometer extension cable in a U-shaped groove, screwing the locking head clockwise by using a handle of the torque wrench, wherein the thermometer extension cable is positioned in the U-shaped groove and the middle position of the thermometer fixing locking head in the operation process, and the thermometer locking head and the U-shaped groove are not contacted with the extension cable when the thermometer locking head and the U-shaped groove are rotated and fastened;
step three: when the torque of the torque wrench reaches an action torque value and triggers a warning signal, the torque reaches the use requirement, and the pump shaft bush thermometer probe fixes the locking head to be installed in place; after the installation, the tool is directly taken out along the thermometer mounting hole, so that the damage to the extension line of the bearing bush thermometer is avoided.
The present invention has been described in detail with reference to the accompanying drawings and examples, but the present invention is not limited to the above examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.
Claims (6)
1. The utility model provides a nuclear power station water pump shaft tile thermometer dismouting device which characterized in that includes: a T-shaped handle (1) and a dismounting rod (9); the T-shaped handle (1) is fixedly connected with the dismounting rod (9) in a magnetic attraction way; the disassembling and assembling rod (9) comprises: the device comprises a hexagonal joint (3), a U-shaped groove (4) and a U-shaped plug (5); the disassembly and assembly rod (9) is of a hollow cylindrical structure, and a U-shaped groove (4) is formed in the outer surface of the disassembly and assembly rod (9); the top of dismouting pole (9) is provided with hexagonal joint (3), U type plug (5) have been opened to the bottom of dismouting pole (9).
2. The dismounting device for the nuclear power station water pump shaft bushing thermometer according to claim 1, is characterized in that: hexagonal interface A (2) have been seted up to the upper end surface of T type handle (1), and hexagonal interface B (10) have been seted up to the lower extreme surface of T type handle (1), hexagonal interface A (2) and hexagonal interface B (10) coaxial setting.
3. The dismounting device for the nuclear power station water pump shaft bushing thermometer according to claim 2, is characterized in that: the hexagonal joint (3) is coaxially arranged with the hexagonal joint A (2) and the hexagonal joint B (10), and the hexagonal joint (3) is made of magnetic materials; the hexagonal connector A (2) and the hexagonal connector B (10) are both internally provided with magnetic adsorption materials.
4. The dismounting device for the nuclear power station water pump shaft bushing thermometer according to claim 1, is characterized in that: the hexagonal connector B (10) of the T-shaped handle (1) and the hexagonal connector (3) of the dismounting rod (9) are fixed in a dismounting and mounting mode through magnetic adsorption.
5. The device for dismounting and mounting a nuclear power station water pump shaft bushing thermometer according to claim 4, characterized in that: the U-shaped plug (5) is inserted into a straight groove of the fixed locking head of the pump shaft bush thermometer probe, and the size of the U-shaped plug (5) is matched with the size of the straight groove on the fixed locking head of the pump shaft bush thermometer probe.
6. The device for dismounting and mounting a nuclear power station water pump shaft bushing thermometer according to claim 5, is characterized in that: an extension line of a pump shaft bush thermometer is placed in the U-shaped groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299636.0U CN214446053U (en) | 2020-12-31 | 2020-12-31 | Nuclear power station water pump shaft tile thermometer dismouting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299636.0U CN214446053U (en) | 2020-12-31 | 2020-12-31 | Nuclear power station water pump shaft tile thermometer dismouting device |
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| CN214446053U true CN214446053U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720354A (en) * | 2020-12-31 | 2021-04-30 | 江苏核电有限公司 | Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer |
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- 2020-12-31 CN CN202023299636.0U patent/CN214446053U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720354A (en) * | 2020-12-31 | 2021-04-30 | 江苏核电有限公司 | Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer |
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