CN214642966U - Special frock of sealed lid under leading oil groove on large-scale hydroelectric set overhauls - Google Patents
Special frock of sealed lid under leading oil groove on large-scale hydroelectric set overhauls Download PDFInfo
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- CN214642966U CN214642966U CN202120014315.7U CN202120014315U CN214642966U CN 214642966 U CN214642966 U CN 214642966U CN 202120014315 U CN202120014315 U CN 202120014315U CN 214642966 U CN214642966 U CN 214642966U
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Abstract
The utility model provides a lead special frock of oil groove lower seal cover maintenance on large-scale hydroelectric set, including setting up first track and the second track on the rotor basis, all be equipped with fixation nut on first track and the orbital support of second, first orbital tip is equipped with the combined surface track, the orbital both ends of second are equipped with split face track, first track upside is equipped with combination bearing support, second track upside is equipped with two sets of split face bearing supports, combination bearing support and split face bearing support bottom be equipped with respectively with first track and second track complex pulley, split face bearing support top is connected with lower seal cover. The special maintenance tool can effectively reduce the operation intensity of personnel and improve the working efficiency and the safety and reliability.
Description
Technical Field
The utility model belongs to hydraulic generator overhauls the equipment field, in particular to seal cover overhauls special frock under leading the oil groove on large-scale hydroelectric set.
Background
When the whole oil guide groove on the large-scale mixed-flow water turbine generator set is overhauled at present, a lower sealing cover (as shown in figure 6) is frequently required to be disassembled in a split mode, and a space is reserved for disassembling a lower oil disc. The traditional maintenance process is that the lower sealing cover is wholly dropped, split and disassembled, and then manually moved to the position above the rotor supporting arm. The process has the following problems: 1. the lower sealing cover has heavy assembly weight, large workload of manual disassembly and assembly, low maintenance efficiency and easy injury of personnel; 2. the lower sealing cover after split disassembly is difficult to assemble in a circle due to the limitation of field space, potential leakage points are increased when the number of split parts is increased, and the sealing performance is difficult to guarantee.
Disclosure of Invention
The utility model aims to solve the technical problem that a lead special frock of sealed lid maintenance under oil groove on large-scale hydroelectric set is provided, effectively alleviate personnel's operation intensity, improve work efficiency and fail safe nature's special maintenance frock.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a special frock is overhauld to sealed lid under leading oil groove on large-scale hydroelectric set, including setting up first track and the second track on the rotor basis, all be equipped with fixation nut on first track and the orbital support of second, first orbital tip is equipped with the combined surface track, the orbital both ends of second are equipped with split face track, first track upside is equipped with combination bearing support, second track upside is equipped with two sets of split face bearing supports, combination bearing support and split face bearing support bottom be equipped with respectively with first track and the orbital complex pulley of second, split face bearing support top is connected with sealed lid down.
In the preferred scheme, the upper side of the lower sealing cover is provided with a base plate, and the base plate is connected with the split surface bearing support through a bolt.
In a preferred scheme, the first track and the combined surface track and the second track and the split surface track are connected through a connecting mechanism, the connecting mechanism comprises a track connecting lock catch which is in pin joint with the combined surface track or the split surface track, and lock catch connecting pins matched with the track connecting lock catch are arranged on one sides of the first track and the second track.
In a preferred scheme, the end parts of the combined surface track and the split surface track are provided with positioning pins, and the end parts of the first track and the second track are provided with pin holes matched with the positioning pins.
In the preferred scheme, the pulley is universal, and the pulley top is equipped with the installation piece, and combination bearing support and split face bearing support bottom all are equipped with the spout with installation piece complex.
In a preferred scheme, the combined bearing support is provided with a positioning groove matched with the outer rib of the lower sealing cover.
The utility model provides a special frock of maintenance of upper oil guide groove lower sealing cover of large-scale hydroelectric generating set, reduced the upper oil guide groove lower sealing cover split quantity, effectively improved maintenance efficiency; the pulley on the bracket can move along the sliding groove, so that the adaptability of the tool is fully improved, and the staggered teeth adjustment of the sealing surface is facilitated when the lower sealing cover is assembled back to the round shape; this frock is easily slided lower sealing cover to assigned position through pulley and track, has reduced operation intensity, has ensured operation safety. When the lower sealing cover is installed again, the lower sealing cover is accurately aligned to the split surface due to the double limiting of the bracket and the track, and the workload of staggered tooth adjustment is reduced.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation of a load bearing support having a split surface;
FIG. 3 is a schematic structural view of the connection mechanism;
FIG. 4 is a schematic view of the attachment of the mounting block;
FIG. 5 is a schematic view of the present invention;
FIG. 6 is a schematic view of the position of the lower seal cap;
in the figure: the split type bearing assembly comprises a first rail 1, a second rail 2, a fixing nut 3, a combined surface rail 4, a split surface rail 5, a combined bearing support 6, a split surface bearing support 7, a pulley 8, a backing plate 9, a rail connecting lock catch 10, a lock catch connecting pin 11, a positioning pin 12, a pin hole 13, an installation block 14, a sliding groove 15 and a positioning groove 16.
Detailed Description
As shown in fig. 1-2, a special tool for overhauling a lower sealing cover of an upper oil guide groove of a large-scale hydroelectric generating set comprises a first rail 1 and a second rail 2 which are arranged on a rotor foundation, fixing nuts 3 are arranged on supports of the first rail 1 and the second rail 2, the fixing nuts 3 are connected with the rotor foundation through bolts, a combined surface rail 4 is arranged at the end part of the first rail 1, split surface rails 5 are arranged at two ends of the second rail 2, the combined surface rail 4 and the split surface rails 5 are obliquely arranged, a combined bearing support 6 is arranged on the upper side of the first rail 1, two split surface bearing supports 7 are arranged on the upper side of the second rail 2, pulleys 8 which are respectively matched with the first rail 1 and the second rail 2 are arranged at the bottoms of the combined bearing supports 6 and the split surface bearing supports 7, the top of the split surface bearing supports 7 is connected with the lower sealing cover, and specifically, the top of the split surface bearing supports 7 is connected with the outer edge of the lower sealing cover through bolts.
Preferably, as shown in fig. 2, the lower sealing cover is provided with a backing plate 9 at the upper side, and the backing plate 9 is connected with the split surface bearing bracket 7 through bolts. The outer edge of the lower sealing cover is arranged between the backing plate 9 and the split surface bearing support 7, so that the connection stability is improved, and the contact area with the lower sealing cover is increased.
Preferably, as shown in fig. 3, the first rail 1 and the combined surface rail 4 and the second rail 2 and the split surface rail 5 are connected by a connecting mechanism, the connecting mechanism includes a rail connecting lock 10 pinned on the combined surface rail 4 or the split surface rail 5, and both sides of the first rail 1 and the second rail 2 are provided with lock connecting pins 11 matched with the rail connecting lock 10.
The detachable connection is realized between the first track 1 and the combined surface track 4 and between the second track 2 and the split surface track 5, the track connecting lock catch 10 is connected and disconnected with the lock catch connecting pin 11 through rotating along the pin joint position of the track connecting lock catch 10, and the quick detachable connection of the first track 1 and the combined surface track 4 or between the second track 2 and the split surface track 5 is facilitated.
Preferably, the end parts of the combined surface track 4 and the split surface track 5 are provided with positioning pins 12, and the end parts of the first track 1 and the second track 2 are provided with pin holes 13 matched with the positioning pins 12.
Through the positioning of the positioning pin 12 and the pin hole 13, the first rail 1 and the combined surface rail 4 or the second rail 2 and the split surface rail 5 are accurately positioned, and the dislocation of the rail connection is prevented.
Preferably, as shown in fig. 2 and 4, the pulley 8 is a universal pulley, the top of the pulley 8 is provided with a mounting block 14, the bottoms of the combined bearing bracket 6 and the split bearing bracket 7 are both provided with a sliding groove 15 matched with the mounting block 14, and the direction of the sliding groove 15 is perpendicular to the direction of the first rail 1 or the second rail 2.
Specifically, the mounting block 14 is a "T" shaped structure.
Through the cooperation of spout 15 and installation piece 14, can adjust the position of combination bearing support 6 and split face bearing support 7, when fully improving frock adaptability, also be convenient for carry on the sealed face side of missing tooth adjustment when the sealed lid repacks the group circle down.
Preferably, the combined bearing support 6 is provided with a positioning groove 16 matched with the outer rib of the lower sealing cover. The positioning groove 16 can improve the connection strength between the combined bearing support 6 and the lower sealing cover, and prevent the lower sealing cover from shifting.
When the rotor is used specifically, a first track 1 and a second track 2 are installed according to the relative positions of a sealing cover combination seam and a fastening bolt on a rotor foundation on site, and a combination surface track 4 and a split surface track 5 are respectively connected with the first track 1 and the second track 2; installing a screw rod, removing connecting bolts of a lower sealing cover and a lower oil pan, removing partial split combined bolts and installing a combined bearing support 6 and a split surface bearing support 7 after the lower sealing cover and the lower oil pan integrally fall to a certain height, and moving an installation block 14 along a sliding groove 15 to adjust the position of a pulley 8 to align the pulley with the first track 1 or the second track 2; the lower sealing cover is completely dropped onto the track through the screw rod, and the lower sealing cover is decomposed into 2 pieces; the lower sealing cover is slid along the combined surface track 4 and the split surface track 5 to be split to the upper part of the rotor support arm and is reliably fixed; and after the maintenance work is finished, the lower sealing cover is installed in a reversed order.
The tool adopts a modular combination form of support fixation, pulley sliding and rail guide limiting, and is simple and convenient to transport, disassemble and assemble. The tooling reduces the number of the upper oil guide groove and the lower sealing cover, and effectively improves the maintenance efficiency; the pulley on the bracket can move along the sliding groove, so that the adaptability of the tool is fully improved, and the staggered teeth adjustment of the sealing surface is facilitated when the lower sealing cover is assembled back to the round shape; this frock is easily slided lower sealing cover to assigned position through pulley and track, has reduced operation intensity, has ensured operation safety. When the lower sealing cover is installed again, the lower sealing cover is accurately aligned to the split surface due to the double limiting of the bracket and the track, and the workload of staggered tooth adjustment is reduced.
Claims (6)
1. The utility model provides a sealed lid under oil groove overhauls special frock on large-scale hydroelectric set, its characterized in that: including setting up first track (1) and second track (2) on the rotor basis, all be equipped with fixation nut (3) on the support of first track (1) and second track (2), the tip of first track (1) is equipped with combination face track (4), the both ends of second track (2) are equipped with split face track (5), first track (1) upside is equipped with combination bearing support (6), second track (2) upside is equipped with two sets of split face bearing support (7), combination bearing support (6) and split face bearing support (7) bottom are equipped with respectively with first track (1) and second track (2) complex pulley (8), split face bearing support (7) top is connected with lower sealed lid.
2. The special tool for overhauling the lower sealing cover of the upper oil guide groove of the large hydroelectric generating set according to claim 1, and is characterized in that: the upper side of the lower sealing cover is provided with a backing plate (9), and the backing plate (9) is connected with the split surface bearing bracket (7) through a bolt.
3. The special tool for overhauling the lower sealing cover of the upper oil guide groove of the large hydroelectric generating set according to claim 1, and is characterized in that: the split type track is characterized in that the first track (1) is connected with the combined surface track (4) through a connecting mechanism, the second track (2) is connected with the split surface track (5) through a connecting mechanism, the connecting mechanism comprises a track connecting lock catch (10) which is connected to the combined surface track (4) or the split surface track (5) in a pin mode, and lock catch connecting pins (11) matched with the track connecting lock catch (10) are arranged on one sides of the first track (1) and the second track (2).
4. The special tool for overhauling the lower sealing cover of the upper oil guide groove of the large hydroelectric generating set according to claim 3, wherein the special tool comprises: the combined surface track (4) and the split surface track (5) are provided with positioning pins (12) at the end parts, and the first track (1) and the second track (2) are provided with pin holes (13) matched with the positioning pins (12).
5. The special tool for overhauling the lower sealing cover of the upper oil guide groove of the large hydroelectric generating set according to claim 1, and is characterized in that: the pulley (8) is universal, the top of the pulley (8) is provided with a mounting block (14), and the bottoms of the combined bearing support (6) and the split bearing support (7) are provided with sliding grooves (15) matched with the mounting block (14).
6. The special tool for overhauling the lower sealing cover of the upper oil guide groove of the large hydroelectric generating set according to claim 1, and is characterized in that: and the combined bearing support (6) is provided with a positioning groove (16) matched with the outer rib of the lower sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120014315.7U CN214642966U (en) | 2021-01-05 | 2021-01-05 | Special frock of sealed lid under leading oil groove on large-scale hydroelectric set overhauls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120014315.7U CN214642966U (en) | 2021-01-05 | 2021-01-05 | Special frock of sealed lid under leading oil groove on large-scale hydroelectric set overhauls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214642966U true CN214642966U (en) | 2021-11-09 |
Family
ID=78507173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120014315.7U Active CN214642966U (en) | 2021-01-05 | 2021-01-05 | Special frock of sealed lid under leading oil groove on large-scale hydroelectric set overhauls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214642966U (en) |
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2021
- 2021-01-05 CN CN202120014315.7U patent/CN214642966U/en active Active
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