CN211508858U - Rotor yoke lamination locating pin hoisting device - Google Patents
Rotor yoke lamination locating pin hoisting device Download PDFInfo
- Publication number
- CN211508858U CN211508858U CN202020558783.6U CN202020558783U CN211508858U CN 211508858 U CN211508858 U CN 211508858U CN 202020558783 U CN202020558783 U CN 202020558783U CN 211508858 U CN211508858 U CN 211508858U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- annular
- positioning
- yoke lamination
- lifting 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
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to a rotor yoke lamination locating pin hoisting device, it includes hydraulic pressure device, location lift bar, fixation nut and annular pneumatic cylinder, is equipped with annular cylinder in the annular pneumatic cylinder, is equipped with the piston cylinder in the annular cylinder, and location lift bar bottom is equipped with the connecting screw bolt, the top that are used for connecting yoke lamination locating pin and is equipped with the screw thread section. The utility model discloses a hydraulic cylinder operation control, lifting force satisfy the promotion requirement, and the pulling force is even, stable and controllable, but promotes high real-time measurement control, and the hoisting device center coincides with yoke lamination locating pin center basis, realizes that yoke lamination locating pin promotes in-process atress is perpendicular atress, does not have the horizontal direction component, does not produce the shearing force, the difficult condition that takes place the bolt and cut off, safe and reliable, construction safety risk are low.
Description
Technical Field
The utility model relates to a power station unit equipment assembly technical field, especially a rotor yoke lamination locating pin hoisting device.
Background
At present, rotors of large-scale water turbine generator sets are all in bulk and are assembled into a whole through a series of procedures on a construction site, magnet yoke stacking is one of key procedures in rotor assembly, and the quality of the magnet yoke stacking directly influences the hanging quality of magnetic poles of the rotors. The magnetic yoke lamination positioning mainly comprises two modes of a magnetic yoke key and a lamination pin and a magnetic yoke key and a permanent screw. "yoke key + lamination pin" locate mode then is the more one of using at present, and the yoke key plays the circumference positioning action, and the lamination pin plays radial positioning action, and other frocks are like assistance-localization real-time such as dove tail positioning tool, and along with the rising of lamination height, the lamination pin also needs to promote thereupon, basically every 200mm height of folding, the yoke dowel just promotes once, and lamination pin promotion method has following two kinds usually:
"Lever method" -at first install rings in lamination pin bolt hole, place the square timber that thickness is about 120mm on the yoke is dashed on the piece to rings are the fulcrum, utilize the crowbar of filling up in the flitch, and the manual work pushes down the crowbar, and along with the pushing down of crowbar and promote the pin, generally need multiple repetition many times just can promote 200mm height, and the lifting efficiency is lower.
Firstly, installing a lifting ring in a bolt hole of a laminated pin, connecting the lifting ring with a steel wire rope by using a shackle, hanging the other end of the steel wire rope on a lifting hook of an electric block of a bridge crane of a factory building, and lifting the lifting hook after the lifting hook is adjusted so as to lift the pin.
In actual construction, because of the influence of factors such as the shape of a magnetic yoke, a magnetic yoke punching sheet cleaning process, magnetic yoke stacking and positioning accuracy and the like, the following problems mainly exist:
to the yoke towards the piece that exempts from to clean, positioning accuracy influences when receiving towards piece machining precision and yoke closed assembly, and there is the condition of ladder distribution in the yoke surface, causes the cooperation clearance of lamination pin and screw to further diminish, adopts "lever method" then because the dynamics is not enough and inhomogeneous, and the promotion degree of difficulty is great.
By adopting the electric hoist lifting method, because the center of the lifting hook can not be completely coincided with the center of the laminated pin in the lifting process, a horizontal component force exists during lifting, and because the friction force between the laminated pin and the magnetic yoke punching sheet is large, the lifting force required at the moment of lifting is also large, the corresponding horizontal component force is also large, the lifting ring is sheared, abnormal conditions such as the breakage of the lifting ring are easy to occur, and the safety risk is large.
The lifting force provided by the two methods is poor in stability and uncontrollable; and meanwhile, more operators are needed, and the working efficiency is lower.
SUMMERY OF THE UTILITY MODEL
For solving the problem in the above-mentioned background art, the utility model aims at providing a rotor yoke lamination locating pin hoisting device, the utility model provides a technical scheme that its technical problem adopted is:
a lifting device for a rotor magnet yoke lamination positioning pin comprises a hydraulic pressure device, a positioning lifting rod, a fixing nut and an annular hydraulic cylinder; an annular cylinder barrel is arranged in the annular hydraulic cylinder, a piston barrel is arranged in the annular cylinder barrel, a connecting stud for connecting the magnet yoke lamination positioning pin is arranged at the bottom end of the positioning lifting rod, and a thread section with a square head is arranged at the top end of the positioning lifting rod; the annular hydraulic cylinder is in a hollow cylinder shape with a cylindrical cavity inside, the positioning lifting rod is arranged in the cylindrical cavity of the annular hydraulic cylinder, and the top end of the positioning lifting rod is connected with the piston cylinder through a fixing nut; the bottom of the annular cylinder barrel is provided with an oil inlet and outlet, the outer side wall of the bottom of the annular hydraulic cylinder is provided with a quick pipe joint, and the quick pipe joint is communicated with the oil inlet and outlet and is connected to a hydraulic pressure device through a hydraulic oil pipe.
Further preferably, the piston cylinder is a hollow cylinder with a top surface, and the top end of the positioning lifting rod is connected to the center of the top surface of the piston cylinder through a fixing nut.
Preferably, the height of the cylindrical cavity of the annular hydraulic cylinder is 260-290 mm, and the diameter of the cylindrical cavity of the annular hydraulic cylinder is 50-60 mm; the diameter of the cylindrical cavity is 10-15 mm larger than the positioning pin of the magnetic yoke lamination, and the height can meet the operation requirement of lifting 200mm at one time.
Preferably, the piston cylinder is provided with an upper sealing groove and a lower sealing groove, and an O-shaped sealing ring is arranged in each sealing groove; the double-layer sealing strengthens the isolation of hydraulic oil and improves the reliability and durability of the device.
Preferably, the distance between the lower layer of sealing groove and the bottom of the piston cylinder is 15mm, and the distance between the upper layer of sealing groove and the bottom of the piston cylinder is 20 mm; the seal groove is arranged at the bottom of the piston cylinder, so that the isolation effect of the O-shaped seal ring is improved.
The implementation process is as follows:
1) installing a positioning lifting rod, installing a connecting stud at the bottom end of the positioning lifting rod in a screw hole arranged at the top end of the magnet yoke lamination positioning pin, and fastening a square head at the top end of the positioning lifting rod by using a wrench to tighten the connecting stud at the bottom end;
2) the annular hydraulic cylinder is sleeved with the positioning lifting rod from the top, the positioning lifting rod is arranged in a cylindrical cavity of the annular hydraulic cylinder, the annular hydraulic cylinder is arranged on a rotor magnetic yoke, the fixing nut is screwed in along a threaded section at the top end of the positioning lifting rod until the fixing nut is attached to the top of the piston cylinder, and the fixing nut is screwed in;
3) the quick pipe joint is connected to a hydraulic pressure device through a hydraulic oil pipe, the annular hydraulic cylinder is pressurized through the hydraulic pressure device, and the piston cylinder drives the magnet yoke lamination positioning pin to lift;
4) after the magnetic yoke lamination positioning pin is lifted by 200mm, the lifting process is completed, and the lifting device is detached after the annular hydraulic cylinder is decompressed.
The utility model has the advantages that: the power of the lifting device is controlled by adopting a hydraulic oil cylinder, the lifting force meets the lifting requirement, the pulling force is uniform, stable and controllable, and the lifting height can be measured and controlled in real time.
The lifting device and the positioning lifting rod are connected to the center of the top surface of the piston cylinder, so that the center of the lifting device and the center of the magnetic yoke lamination positioning pin can be basically superposed, the stress in the lifting process of the magnetic yoke lamination positioning pin is vertical, no horizontal component force and no shearing force are generated, the situation of bolt shearing is not easy to occur, and the lifting device is safe and reliable and has low construction safety risk.
The utility model discloses can adopt many hoisting device jointly to use simultaneously, be equipped with equipment such as diverging device and air pump, replace manual work, carry out the promotion of a plurality of yoke lamination locating pins simultaneously, work efficiency obtains improving greatly.
This hoisting device also can promote yoke lamination locating pin through operation location lifting rod under the on-the-spot hydraulic equipment condition that does not have.
The utility model discloses simple structure, operation use safe and reliable, have fine practical value.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a plan view of the present invention.
Parts and numbering in the figures:
1-hydraulic pressure device; 2-positioning the lifting rod; 21-connecting studs; 22-a threaded section; 23-a fixing nut; 3-an annular hydraulic cylinder; 4-an annular cylinder barrel; 5-a piston cylinder; a 51-O-ring seal; 6-oil inlet and outlet; 7-quick pipe joint; 8-yoke lamination locating pins; 9-rotor yoke.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1-2, a lifting device for a rotor yoke lamination positioning pin comprises a hydraulic pressure device 1, a positioning lifting rod 2, a fixing nut 23 and an annular hydraulic cylinder 3; an annular cylinder barrel 4 is arranged in the annular hydraulic cylinder 3, a piston barrel 5 is arranged in the annular cylinder barrel 4, a connecting stud 21 for connecting the magnet yoke lamination positioning pin 8 is arranged at the bottom end of the positioning lifting rod 2, and a threaded section 22 with a square head is arranged at the top end of the positioning lifting rod; the annular hydraulic cylinder 3 is in a hollow cylinder shape with a cylindrical cavity inside, the positioning lifting rod 2 is arranged in the cylindrical cavity of the annular hydraulic cylinder 3, and the top end of the positioning lifting rod 2 is connected with the piston cylinder 5 through a fixing nut 23; the bottom of annular cylinder 4 is equipped with into oil drain port 6, is equipped with quick coupling 7 on the 3 bottom lateral walls of annular pneumatic cylinder, quick coupling 7 with advance oil drain port 6 intercommunication and be connected to hydraulic pressure device 1 through the hydraulic pressure oil pipe that is equipped with.
The implementation process is as follows:
1) installing the positioning lifting rod 2, installing a connecting stud 21 at the bottom end of the positioning lifting rod 2 in a screw hole formed in the top end of the magnet yoke lamination positioning pin 8, and fastening a square head at the top end of the positioning lifting rod 2 by using a wrench to tighten the connecting stud 21 at the bottom end;
2) the annular hydraulic cylinder 3 is sleeved with the positioning lifting rod 2 from the top, the positioning lifting rod 2 is arranged in a cylindrical cavity of the annular hydraulic cylinder 3, the annular hydraulic cylinder 3 is arranged on the rotor magnetic yoke 9, the fixing nut 23 is screwed in along the threaded section 22 at the top end of the positioning lifting rod 2 until the fixing nut 22 is attached to the top of the piston cylinder 5, and the fixing nut 23 is screwed in;
3) the quick pipe joint 7 is connected to the hydraulic pressure device 1 through a hydraulic oil pipe, the annular hydraulic cylinder 3 is pressurized through the hydraulic pressure device 1, and the piston cylinder 5 drives the magnet yoke lamination positioning pin 8 to lift;
4) after the magnetic yoke lamination positioning pin 8 is lifted by 200mm, the lifting process is completed, and the lifting device is detached after the annular hydraulic cylinder 3 is decompressed.
The piston cylinder 5 is a hollow cylinder with a top surface, and the top end of the positioning lifting rod 2 is connected to the center of the top surface of the piston cylinder 5 through a fixing nut 23 in a bolt mode.
The height of the cylindrical cavity of the annular hydraulic cylinder 3 is 260-290 mm, and the diameter is 50-60 mm. The diameter of the cylindrical cavity is 10-15 mm larger than the positioning pin of the magnetic yoke lamination, and the height can meet the operation requirement of lifting 200mm at one time.
An upper sealing groove and a lower sealing groove are formed in the piston cylinder 5, a 0-shaped sealing ring 51 is arranged in each sealing groove, isolation of hydraulic oil is enhanced through double-layer sealing, and reliability and durability of the device are improved.
The lower layer of sealing groove is 15mm away from the bottom of the piston cylinder 5, the upper layer of sealing groove is 20mm away from the bottom of the piston cylinder 5, and the sealing groove is arranged at the bottom of the piston cylinder 5, so that the isolation effect of the O-shaped sealing ring 51 is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. A lifting device for a rotor magnet yoke lamination positioning pin comprises a hydraulic pressure device (1), and is characterized by also comprising a positioning lifting rod (2), a fixing nut (23) and an annular hydraulic cylinder (3); an annular cylinder barrel (4) is arranged in the annular hydraulic cylinder (3), a piston barrel (5) is arranged in the annular cylinder barrel (4), a connecting stud (21) for connecting the magnet yoke lamination positioning pin is arranged at the bottom end of the positioning lifting rod (2), and a threaded section (22) with a square head is arranged at the top end of the positioning lifting rod; the annular hydraulic cylinder (3) is in a hollow cylinder shape with a cylindrical cavity inside, the positioning lifting rod (2) is arranged in the cylindrical cavity of the annular hydraulic cylinder (3), and the top end of the positioning lifting rod (2) is connected with the piston cylinder (5) through a fixing nut (23); the bottom of annular cylinder (4) is equipped with into oil drain port (6), is equipped with quick-operation pipe joint (7) on annular pneumatic cylinder (3) bottom lateral wall, quick-operation pipe joint (7) with advance oil drain port (6) intercommunication and be connected to hydraulic pressure device (1) through the hydraulic pressure oil pipe that is equipped with.
2. A rotor yoke lamination positioning pin lifting device as claimed in claim 1, wherein the piston cylinder (5) is a hollow cylinder with a top surface, and the top end of the positioning lifting rod (2) is connected to the center of the top surface of the piston cylinder (5) through a fixing nut (23).
3. A rotor yoke lamination positioning pin lifting device according to claim 1, characterized in that the height of the cylindrical cavity of the annular hydraulic cylinder (3) is 260 mm-290 mm and the diameter is 50 mm-60 mm.
4. The lifting device for the positioning pin of the rotor yoke lamination according to claim 1, wherein the piston cylinder (5) is provided with an upper sealing groove and a lower sealing groove, and an O-shaped sealing ring (51) is arranged in the sealing grooves.
5. A rotor yoke lamination locating pin lifting device according to claim 4, characterized in that the lower layer of sealing groove is 15mm from the bottom of the piston cylinder (5), and the upper layer of sealing groove is 20mm from the bottom of the piston cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020558783.6U CN211508858U (en) | 2020-04-15 | 2020-04-15 | Rotor yoke lamination locating pin hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020558783.6U CN211508858U (en) | 2020-04-15 | 2020-04-15 | Rotor yoke lamination locating pin hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211508858U true CN211508858U (en) | 2020-09-15 |
Family
ID=72404236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020558783.6U Active CN211508858U (en) | 2020-04-15 | 2020-04-15 | Rotor yoke lamination locating pin hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211508858U (en) |
-
2020
- 2020-04-15 CN CN202020558783.6U patent/CN211508858U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422512B (en) | Replaceable pre-embedded bolt formula wind generation set concrete foundation and construction method thereof | |
| US7779904B2 (en) | Guide rail plate for top drive of a drilling system | |
| CN211508858U (en) | Rotor yoke lamination locating pin hoisting device | |
| CN111355351A (en) | Lifting device and lifting method for rotor magnet yoke lamination positioning pin | |
| CN211360758U (en) | Tool for treating thread shedding of cylinder cover bolt bottom hole of diesel engine body | |
| CN214643254U (en) | Deep well pump lifting pipe is dismantled and assembly maintenance device suitable for perpendicular installation | |
| CN204054331U (en) | A kind of regular screw threads steel tensioning equipment | |
| CN103008965A (en) | Maintenance method for hydraulic jacking oil cylinder of tower crane | |
| CN206654649U (en) | A kind of simply adjustable shaped steel lifting card construction equipment | |
| CN106812252A (en) | The anti-skidding prestressing force pull end anchorage of one kind sealing | |
| CN217317850U (en) | Hydraulic generator main shaft and rotor coupling pin bush dismounting device | |
| CN201042790Y (en) | Crank pin drawing and disassebling device for oil pumping machine | |
| CN102153012A (en) | Tool for hoisting hydraulic cylinder body and plunger | |
| CN201809029U (en) | Lifting lever | |
| CN220094482U (en) | Dismantling tool for eccentric pin bush of rotating wheel | |
| CN111874825A (en) | Construction method for hoisting component by using unconventional hoisting equipment | |
| CN214686316U (en) | Special tool for dismantling multi-model pins | |
| CN220684422U (en) | Lifting tool for removing blocking valve holding plate | |
| CN211849004U (en) | Arch active control leveling anchoring device assembly for suspender replacement | |
| CN220078298U (en) | Double-bridge machine stator hoisting device for hydropower house | |
| CN219906667U (en) | Crane beam circulation hoisting sling | |
| CN214879471U (en) | Hoisting and hanging ring device | |
| CN214980724U (en) | Portable assembly and disassembly tools suitable for piston compressor axle sleeve | |
| CN209799024U (en) | Pre-buried structure for steel construction | |
| CN214456437U (en) | Rope regulator for well drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |