CN212683768U - Special tool for dismounting and mounting rotating wheel bolt of water turbine - Google Patents
Special tool for dismounting and mounting rotating wheel bolt of water turbine Download PDFInfo
- Publication number
- CN212683768U CN212683768U CN202021226017.6U CN202021226017U CN212683768U CN 212683768 U CN212683768 U CN 212683768U CN 202021226017 U CN202021226017 U CN 202021226017U CN 212683768 U CN212683768 U CN 212683768U
- Authority
- CN
- China
- Prior art keywords
- bolt
- connecting seat
- heating
- connecting sleeve
- rod
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000006378 damage Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Abstract
The utility model belongs to the technical field of assembly and disassembly tools for the hydraulic turbine, concretely relates to hydraulic turbine runner bolt dismouting specialized tool. The special tool comprises a connecting seat, a connecting sleeve and a support column group, wherein the connecting seat is coaxially and fixedly arranged above the connecting sleeve and forms a heating channel with the connecting sleeve, the support column group is positioned above a runner bolt, the support column group comprises a plurality of support columns, the plurality of support columns are uniformly arranged below the connecting sleeve along the circumferential direction, and the plurality of support columns can be matched and clamped with an operation hole in the runner bolt; the connecting seat is internally provided with a baffle table for placing a heating rod, and the rod body of the heating rod is positioned in the heating channel. The operation is conveniently carried out by multiple persons simultaneously, the damage to equipment is avoided, and great convenience is brought to on-site actual work.
Description
Technical Field
The utility model belongs to the technical field of assembly and disassembly tools for the hydraulic turbine, concretely relates to hydraulic turbine runner bolt dismouting specialized tool.
Background
Part of the pumped storage power station is of an underground workshop structure, and the rotating parts of the unit mainly comprise a rotor, an intermediate shaft, a water turbine shaft, a rotating wheel and the like. When the unit is overhauled, the rotating parts of the unit need to be disassembled and disassembled, the connection mode of the power station water turbine shaft and the rotating wheel is bolt connection, the bolt is made of 30CrNiMo8, and the bolt is M90X 4 in size. The method for designing and disassembling the connecting bolt of the water turbine shaft and the rotating wheel comprises the steps of heating a heating rod and then disassembling the connecting bolt, heating the bolt by using the heating rod in the middle of the bolt according to the principle of thermal expansion and cold contraction, expanding and extending the bolt after being heated, tightening a nut at the moment, shrinking the bolt after being cooled, compressing the nut, and reversing the disassembling process.
However, due to the limitation of the structure of the machine set, the space around the bolt is small, a heating rod needs to be inserted into a middle hole of the bolt, and after heating is completed, the nut cannot be operated by a conventional wrench; to this kind of problem use the screwdriver to insert the operation in the nut top handle hole at present more at the scene, hardly screw up the nut, also cause personnel's injury or equipment to damage during the operation easily, need design a specialized tool of hydraulic turbine runner bolt dismouting for this reason, can install and dismantle the nut under the condition that does not influence the bolt heating, solve the inconvenient problem of hydraulic turbine runner bolt dismouting.
Disclosure of Invention
There are inconvenient defect and the problem of dismouting to present hydraulic turbine pivot, the utility model provides a hydraulic turbine runner bolt dismouting specialized tool, this instrument can be installed and dismantle the screw under the condition that does not influence the bolt heating.
The utility model provides a scheme that its technical problem adopted is: a special tool for dismounting a rotating wheel bolt of a water turbine comprises a connecting seat, a connecting sleeve and a support column group, wherein the connecting seat is coaxially and fixedly arranged above the connecting sleeve and forms a heating channel with the connecting sleeve; the connecting seat is internally provided with a baffle table for placing a heating rod, and the rod body of the heating rod is positioned in the heating channel.
Foretell hydraulic turbine runner bolt dismouting specialized tool, the fixed sleeve that is provided with of connecting seat outer wall is equipped with the connecting rod in the fixed sleeve.
The special tool for dismounting the water turbine runner bolt is characterized in that the connecting rod is sleeved in the fixing sleeve or is in threaded connection with the fixing sleeve.
The utility model has the advantages that:
1. the utility model discloses a hydraulic turbine runner bolt dismouting specialized tool is exclusively used in the bolt dismouting of hydraulic turbine runner, matches the pillar and clamps in runner nut's handle hole, through strikeing spanner or connecting rod through connecting sleeve-pillar-handle hole with moment transmission to runner nut on, simple easy to use can once only take out convenient to use swift when using.
2. This instrument shifts the nut of instrument upper end with operation personnel's operating position by the nut handle hole, shifts relatively great exterior space by narrow and small space, makes things convenient for many people to develop the operation simultaneously, avoids causing the damage to equipment, brings very big facility for on-the-spot actual work.
3. Inside arranging the heating rod and the wiring end of heating rod in specialized tool's sleeve, can effectively avoid operating personnel to appear by the condition of heating rod scald, dismantle more safe and reliable with handheld screwdriver operating nut.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a mounting structure of a bolt of a turbine runner.
Fig. 3 is a schematic view of the overall structure of the present invention.
Fig. 4 is a schematic view of the connecting seat structure of the present invention.
Fig. 5 is a schematic longitudinal sectional structure of fig. 4.
Reference numbers in the figures: 1 is a connecting seat, 2 is a connecting sleeve, 3 is a support, 4 is an operating hole, 5 is a heating rod, 6 is a runner nut, 7 is a runner bolt, 8 is a runner, 9 is a water turbine shaft, 10 is an electric wire, 11 is a fixed sleeve, 12 is a connecting rod, 13 is a heating channel, 14 is a baffle table, and 15 is a groove.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: the special tool for dismounting the bolt of the water turbine runner is specially used for dismounting the bolt of the water turbine runner, as shown in fig. 2, the lower end of the bolt 7 of the water turbine runner is arranged in a thread on a runner, a matched nut of the bolt is arranged in a groove 15 on a shaft of a water turbine, and the upper end surface of the nut is provided with 4 symmetrically-arranged operation holes 4; the hydraulic turbine runner bolt is the cavity design, and central point has 1 circular mesopore, all needs to heat at bolt mesopore department installation heating rod before the installation of bolt and the dismantlement, and according to expend with heat and contract with cold's principle, the bolt is heated the back expansion extension, and the tightening nut treats the bolt cooling back shrink this moment, and the nut compresses tightly, and the flow is opposite when demolising.
As shown in fig. 1, the tool specially for disassembly and assembly in this embodiment includes a connecting seat 1, a connecting sleeve 2 and a support column set, wherein the connecting seat is a nut, and is coaxially and fixedly installed above the connecting sleeve 2 and forms a coaxial heating channel 13 with the connecting sleeve 2 for placing a heating rod 5; the pillar group is located runner bolt 7's top, and the pillar group includes 4 pillars 3, and 4 pillars set up in adapter sleeve's below along the circumferencial direction symmetry, because be equipped with 4 symmetrical arrangement's operation hole on the up end of nut, 4 pillars can clamp with the operation hole matching on the runner bolt. In order to avoid operating personnel to be scalded by the heating rod when dismouting operation, be equipped with in 1 inner wall of connecting seat and keep off platform 14, keep off the setting of platform and can be used for placing the heating rod, the barred body of heating rod is located heating channel and can extend to and heat the runner bolt in the mesopore of hydraulic turbine runner bolt.
When the tool is used, the heating rod penetrates through a heating channel of a special tool, then the heating rod of the heating rod is inserted into a central hole of a rotating wheel bolt of the water turbine, and then 4 supports at the lower end of the tool are installed in an operation hole at the upper end of a nut; and then, the power supply can be switched on to heat the bolt by using the heating rod, after the heating is finished, the spanner is used for clamping the connecting seat, the force is transmitted to the connecting seat at the upper end of the tool by knocking the spanner, and the torque is transmitted to the round nut through the sleeve, the support column and the operation hole, so that the mounting and dismounting operations of the runner bolt are realized.
Example 2: the same parts of this embodiment as embodiment 1 will not be described again, but the differences are: embodiment 1 needs to use the spanner to press from both sides tight connecting seat, demolishs the bolt in the recess through strikeing the spanner, but the condition that the spanner is not hard up sometimes appears when actual operation, is not convenient for continuously strikeing. In order to further improve the convenience in use of this instrument, at the outer wall welded fastening sleeve 11 of connecting seat, can have connecting rod 12 through suit or threaded connection in fixed sleeve, transmit moment to runner nut 7 through knocking connecting rod 12 when using on, realize the installation and the dismantlement to the runner bolt, it is more convenient to use.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement and improvement made within the spirit and principle scope of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. The utility model provides a hydraulic turbine runner bolt dismouting specialized tool which characterized in that: the heating device comprises a connecting seat, a connecting sleeve and a support column group, wherein the connecting seat is coaxially and fixedly arranged above the connecting sleeve and forms a heating channel with the connecting sleeve, the support column group is positioned above a runner bolt, the support column group comprises a plurality of support columns, the plurality of support columns are uniformly arranged below the connecting sleeve along the circumferential direction, and the plurality of support columns can be matched and clamped with an operation hole in the runner bolt; the connecting seat is internally provided with a baffle table for placing a heating rod, and the rod body of the heating rod is positioned in the heating channel.
2. The special tool for dismounting and mounting bolts of a turbine runner according to claim 1, wherein: the outer wall of the connecting seat is fixedly provided with a fixed sleeve, and a connecting rod is arranged in the fixed sleeve.
3. The special tool for assembling and disassembling bolts of a turbine runner according to claim 2, wherein: the connecting rod is sleeved in or in threaded connection with the fixed sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226017.6U CN212683768U (en) | 2020-06-29 | 2020-06-29 | Special tool for dismounting and mounting rotating wheel bolt of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226017.6U CN212683768U (en) | 2020-06-29 | 2020-06-29 | Special tool for dismounting and mounting rotating wheel bolt of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212683768U true CN212683768U (en) | 2021-03-12 |
Family
ID=74894551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021226017.6U Active CN212683768U (en) | 2020-06-29 | 2020-06-29 | Special tool for dismounting and mounting rotating wheel bolt of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212683768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524124A (en) * | 2021-07-13 | 2021-10-22 | 哈尔滨电气动力装备有限公司 | Double-thread hollow screw fastening hydraulic tool for wet winding motor |
| CN113977232A (en) * | 2021-11-25 | 2022-01-28 | 哈尔滨汽轮机厂有限责任公司 | Method for removing interference valve seat |
-
2020
- 2020-06-29 CN CN202021226017.6U patent/CN212683768U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524124A (en) * | 2021-07-13 | 2021-10-22 | 哈尔滨电气动力装备有限公司 | Double-thread hollow screw fastening hydraulic tool for wet winding motor |
| CN113977232A (en) * | 2021-11-25 | 2022-01-28 | 哈尔滨汽轮机厂有限责任公司 | Method for removing interference valve seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212683768U (en) | Special tool for dismounting and mounting rotating wheel bolt of water turbine | |
| EP3450091B1 (en) | Wheel milling window fixture | |
| CN106541363A (en) | Locking nut is tightened and back off tool | |
| CN203752083U (en) | Bearing pulling device | |
| CN103240594B (en) | Automatic spring assembling device on motor vehicle vacuum booster | |
| CN208513673U (en) | A kind of drilling equipment of steel connector | |
| CN207724243U (en) | A kind of follow-on hexagon socket head cap screw fast dismounting device | |
| CN203266094U (en) | Automatic assembling device for spring of vacuum booster of motor vehicle | |
| CN214212986U (en) | Clamping device convenient to milling machine processing | |
| CN214868061U (en) | Laser cutting machine fixture fixing device | |
| CN211219519U (en) | Vertical suspension type hydraulic generator thrust collar rapid decomposition device | |
| CN214237984U (en) | Tool for assembling and disassembling bolt | |
| CN204566036U (en) | A kind of Diesel engine adjustable gas cylinder sleeve extracting tool | |
| CN110202522B (en) | Disassembling and assembling tool and method for detachable interference fit anti-side-rolling torsion bar | |
| CN210099866U (en) | Electric sleeve device for connecting pipe hoop | |
| CN210799669U (en) | Reaction nut capable of being rapidly disassembled and assembled | |
| CN210850038U (en) | Pull rod tool for disassembling die parts | |
| CN111745591A (en) | Dismounting device for low-pressure oil filter shell of aircraft engine | |
| CN202651395U (en) | Locking energy-saving joint | |
| CN215548203U (en) | Tool clamp for assembling floating hoop valve seat | |
| CN201392900Y (en) | Energy-saving electrical power connector | |
| CN110394765B (en) | Method for disassembling expansion coupling sleeve | |
| CN2573158Y (en) | Folding high-strength special spanner | |
| CN218697963U (en) | Maintenance device for main pump for oil transportation of pipeline | |
| CN219840901U (en) | Compact hydraulic nut structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |