CN108217455B - On-load tap-changer hoisting machine - Google Patents
On-load tap-changer hoisting machine Download PDFInfo
- Publication number
- CN108217455B CN108217455B CN201810078880.2A CN201810078880A CN108217455B CN 108217455 B CN108217455 B CN 108217455B CN 201810078880 A CN201810078880 A CN 201810078880A CN 108217455 B CN108217455 B CN 108217455B
- Authority
- CN
- China
- Prior art keywords
- stand
- changer
- crossbeam
- cross beam
- load tap
- 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.)
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- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides an on-load tap-changer hoisting machine, and aims to solve the technical problem that an on-load tap-changer in the prior art is difficult to maintain. The utility model provides a pair of on-load tap-changer lifting machine, including the base, be provided with the stand at the base, be provided with the crossbeam on the stand, be provided with lever block on the crossbeam, the base is fixed in on the transformer, can conveniently utilize lever block to lift by crane when lifting by crane on-load tap-changer, because the crossbeam rotates to be connected on the stand, consequently, on-load tap-changer is hung out the oil tank and can be conveniently put on the suitable position with on-load tap-changer. According to the scheme, in the practical use process, related parts of the on-load tap-changer can be effectively prevented from being in contact with a power grid in the lifting process, maintenance of the on-load tap-changer is facilitated, and potential safety hazards in the maintenance process of the on-load tap-changer are reduced. The hoisting machine is arranged on the transformer, so that the occupied space of the hoisting machine is reduced, and the hoisting machine has good universal performance.
Description
Technical Field
The invention relates to an overhaul tool for a transformer, in particular to an on-load tapping switch hoisting machine.
Background
The transformer is one of main accessories of the power grid and plays a role in converting current and voltage in a power grid transmission and distribution line. The on-load tap-changer is an accessory of the transformer and plays a role of a switching circuit. The on-load tap-changer needs to be maintained frequently in the long-term use process so as to ensure that the on-load tap-changer can work normally. In the maintenance process of the on-load tap-changer, the on-load tap-changer needs to be taken out of the oil tank and then placed on the ground or a workbench for maintenance.
In the prior art, a crane is generally adopted to take the on-load tap-changer out of the oil tank in the maintenance process of the on-load tap-changer, and a certain potential safety hazard exists in the actual operation process of the on-load tap-changer in a lifting mode. For example, the crane boom needs to be extended to a high height, and the crane boom is easily contacted with a line around the transformer after being extended, thereby causing a safety accident. Therefore, the on-load tap-changer in the prior art is very difficult to maintain.
Disclosure of Invention
The invention provides an on-load tap-changer hoisting machine, and aims to solve the technical problem that an on-load tap-changer in the prior art is difficult to maintain.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an on-load tapping switch lifting machine, includes the base be provided with the stand on the base be provided with the crossbeam on the stand, sliding connection has the lever block on the crossbeam, the crossbeam rotates to be connected on the stand, the equipartition has the mounting hole on the base be provided with the fixed cover of fixed stand on the base, the stand peg graft in the fixed cover, the fixed cover with the welding has the floor that improves fixed cover and base joint strength between the base, still be provided with on the fixed cover and prevent stand for fixed cover pivoted locating pin, fixed cover with all offered on the stand with locating pin complex pinhole; the cross beam is sleeved on the upright post, an assembly hole matched with the upright post is formed in the cross beam, a limiting plate for limiting the position of the cross beam is arranged on the upright post, the limiting plate is positioned between the cross beam and the base, a supporting plate is arranged between the limiting plate and the upright post, the supporting plate is positioned between the limiting plate and the base, a locking block for locking the cross beam on the upright post is arranged on the cross beam, a groove for accommodating the locking block is formed in the side wall of the assembly hole, the groove is communicated with the assembly hole, a guide rod for guiding the locking block is further arranged on the locking block, a guide hole matched with the guide rod is formed in the cross beam, a spring for pushing the locking block away from the upright post is sleeved on the guide rod, a locking screw for pushing the locking block to the upright post is further arranged on the cross beam, a locking screw hole matched with the locking screw is formed in the cross beam, and the locking screw hole is communicated with the groove.
The utility model provides a pair of on-load tap-changer lifting machine, including the base, be provided with the stand at the base, be provided with the crossbeam on the stand, be provided with lever block on the crossbeam, the base is fixed in on the transformer, can conveniently utilize lever block to lift by crane when lifting by crane on-load tap-changer, because the crossbeam rotates to be connected on the stand, consequently, on-load tap-changer is hung out the oil tank and can be conveniently put on the suitable position with on-load tap-changer. According to the scheme, in the practical use process, related parts of the on-load tap-changer can be effectively prevented from being in contact with a power grid in the lifting process, maintenance of the on-load tap-changer is facilitated, and potential safety hazards in the maintenance process of the on-load tap-changer are reduced. In addition, the hoisting machine is arranged on the transformer, so that the space occupied by the hoisting machine is reduced, and the hoisting machine has good universal performance.
An optional scheme, the guide bar is to keeping away from the direction of stand extends and the protrusion the crossbeam, the spring housing is located the guide bar protrusion on the part of crossbeam, be provided with the dog that limits the spring position on the guide bar, the one end of spring is contradicted on the dog, the other end of spring is contradicted on the crossbeam.
The spring is arranged outside the cross beam, and the structure of the cross beam is simplified by the scheme, so that the spring is convenient to assemble, and the use cost of the hoisting machine is reduced.
An optional scheme, be provided with the rotation of being convenient for on the locking screw's handle, the handle welding is in on the locking screw, it is equipped with the rubber sleeve to overlap on the handle, be provided with the increase on the rubber sleeve coefficient of friction's decorative pattern.
The handle is arranged to enable the locking screw to rotate without tools, so that the usability of the hoisting machine is optimized. The arrangement of the rubber sleeve and the patterns improves the comfort of the handle and optimizes the usability of the hoisting machine.
The alternative scheme, the crossbeam is parallel with the horizontal plane, the lever block passes through the connecting seat setting and is in on the crossbeam, the connecting seat passes through the fix with screw on the lever block, be provided with the slide rail on the crossbeam, be equipped with on the connecting seat with slide rail complex dovetail.
The arrangement of the connecting seat and the sliding rail ensures that the lever block is convenient to move and is firmly connected with the cross beam, so that the stability of the hoisting machine in the use process is improved.
Alternatively, the sliding rail and the cross beam are of an integrated structure, and the width of one side of the sliding rail away from the cross beam is larger than that of one side of the sliding rail contacted with the cross beam.
The scheme simplifies the structures of the connecting seat and the cross beam, and reduces the use cost of the hoisting machine.
Compared with the prior art, the on-load tap-changer hoisting machine provided by the invention has the following advantages:
1. the hoisting machine is directly fixed on the transformer, compared with the prior art that a crane is used for hoisting the on-load tap-changer, the space occupied by the hoisting machine is small, the hoisting machine has good universal performance, and the hoisting machine is not easy to collide with a line, so that the on-load tap-changer is convenient to maintain.
2. The lever block positioned on the beam of the hoisting machine is convenient to adjust, the on-load tap-changer can be effectively prevented from colliding with related parts in the hoisting process, the on-load tap-changer is prevented from being damaged due to collision, and the on-load tap-changer is convenient to maintain.
3. The setting of latch segment and locking screw makes the crossbeam convenient for the position locking of stand to, crossbeam simple structure, easy processing have reduced the use cost of lifting machine.
Drawings
FIG. 1 is a schematic illustration of an on-load tap-changer hoisting machine of the present invention;
fig. 2 is an enlarged view at a in fig. 1.
Detailed Description
The invention further relates to an on-load tap-changer hoisting machine with reference to the accompanying drawings. The following examples are intended only to aid those skilled in the art in understanding the present invention and are not intended to be limiting thereof.
The on-load tap-changer lifting machine is mainly used for lifting the on-load tap-changer of the transformer out of the oil tank for maintenance, or lifting the on-load tap-changer into the oil tank for installation after the maintenance is completed;
as shown in fig. 1, the hoisting machine comprises a base 1, wherein mounting holes are uniformly distributed on the base 1, the base 1 is mounted on a bearing structure of a transformer, such as a flange plate, so as to reliably fix the base 1 on the transformer, the base 1 can be fixed on the transformer through bolts so as to facilitate the assembly or disassembly of the base 1, and the base 1 is reliably connected with the transformer so as to improve the stability of the on-load tapping switch in the hoisting process;
as shown in fig. 1, a stand column 2 is arranged on the base 1, a fixing sleeve 5 for fixing the stand column 2 is arranged on the base 1, the fixing sleeve 5 and the base 1 are of an integrated structure, the fixing sleeve 5 is mainly used for fixing the stand column 2, the stand column 2 is inserted into the fixing sleeve 5, the fixing sleeve 5 and the stand column 2 are convenient to assemble, a hoisting machine is convenient to assemble, a rib plate 6 for improving the connection strength of the fixing sleeve 5 and the base 1 is welded between the fixing sleeve 5 and the base 1, the rib plate 6 is mainly used for improving the strength of the fixing sleeve 5 so as to avoid the damage of the fixing sleeve 5 when the tapping switch is hoisted, a positioning pin 7 for preventing the stand column 2 from rotating relative to the fixing sleeve 5 is also arranged on the fixing sleeve 5, pin holes matched with the positioning pin 7 are formed in the fixing sleeve 5 and the stand column 2, and the positioning pin 7 is inserted into the pin holes so as to realize the positioning of the stand column 2;
as shown in fig. 1, a beam 3 is arranged on the upright 2, the beam 3 is rotatably connected to the upright 2, the beam 3 is sleeved on the upright 2, an assembly hole matched with the upright 2 is arranged on the beam 3, a limit plate 8 for limiting the position of the beam 3 is arranged on the upright 2, the limit plate 8 is welded on the upright 2, the limit plate 8 is positioned between the beam 3 and the base 1, a supporting plate 9 is arranged between the limit plate 8 and the upright 2, the supporting plate 9 is positioned between the limit plate 8 and the base 1, and the supporting plate 9 is welded between the limit plate 8 and the upright 2, when an on-load tap-changer is actually hung, the beam 3 can conveniently rotate around the axis of the upright 2, so that the on-load tap-changer can be conveniently lifted out from an oil tank and moved around the upright 2 by an angle and then placed on the ground or an overhaul platform, and the on-load tap-changer is facilitated;
as shown in fig. 1 and 2, a locking block 10 for locking the cross beam 3 on the upright 2 is arranged on the cross beam 3, a groove 11 for accommodating the locking block 10 is arranged on the side wall of the assembly hole, the groove 11 is communicated with the assembly hole, a guide rod 12 for guiding the locking block 10 is also arranged on the locking block 10, the guide rod 12 and the locking block 10 are of an integrated structure, a guide hole matched with the guide rod 12 is arranged on the cross beam 3, a spring 13 for pushing the locking block 10 away from the upright 2 is sleeved on the guide rod 12, a locking screw 14 for pushing the locking block 10 to the upright 2 is also arranged on the cross beam 3, a locking screw hole matched with the locking screw 14 is arranged on the cross beam 3, and the locking screw hole is communicated with the groove 11;
as shown in fig. 1 and 2, the guide rod 12 extends away from the upright 2 and protrudes out of the cross beam 3, the spring 13 is sleeved on a part of the guide rod 12 protruding out of the cross beam 3, a stop block 15 for limiting the position of the spring 13 is arranged on the guide rod 12, the stop block 15 is fixed on the guide rod 12 through threads, one end of the spring 13 is abutted against the stop block 15, the other end of the spring 13 is abutted against the cross beam 3, and the spring 13 is mainly used for enabling the locking block 10 to leave the upright 2 when the locking screw 14 is loosened, so that the cross beam 3 rotates around the axis of the upright 2;
as shown in fig. 1 and 2, the locking screw 14 is provided with a handle 16 for rotating the locking screw 14 conveniently, the handle 16 is welded on the locking screw 14, the handle 16 is sleeved with a rubber sleeve, the rubber sleeve is provided with patterns for increasing the friction coefficient of the rubber sleeve, and the rubber sleeve can be adhered on the handle 16 to improve the connection strength between the rubber sleeve and the handle 16;
as shown in fig. 1, the lever block 4 is slidably connected to the cross beam 3, the lever block 4 is a lifting device in the prior art, and is widely used in the prior art, and is not described herein, the cross beam 3 is parallel to a horizontal plane, the lever block 4 is disposed on the cross beam 3 through the connection seat 17, the connection seat 17 is fixed on the lever block 4 through a screw, a sliding rail 18 is disposed on the cross beam 3, a dovetail groove matched with the sliding rail 18 is disposed on the connection seat 17, the sliding rail 18 and the cross beam 3 are in an integral structure, and the width of one side of the sliding rail 18 away from the cross beam 3 is greater than the width of one side of the sliding rail 18 contacted with the cross beam 3. The proposal ensures that the hand plate hoist can conveniently move along the sliding rail 18, thereby optimizing the performance of the hoisting machine.
The cross beam 3 can also have a certain included angle with the horizontal plane, and when the cross beam 3 has an included angle with the horizontal plane, a screw is arranged on the connecting seat 17 so as to lock the connecting seat 17 on the sliding rail 18, thereby being beneficial to the hoisting of the on-load tap-changer.
Some embodiments of the invention are described in detail above with reference to the accompanying drawings. Modifications of the above-described embodiments may be made by those skilled in the art, based on the technical solutions of the present invention, which still fall within the scope of the present invention.
Claims (1)
1. The utility model provides an on-load tapping switch lifting machine, includes base (1) be provided with stand (2) on base (1) be provided with crossbeam (3) on stand (2), sliding connection has lever block (4) on crossbeam (3), crossbeam (3) rotate and connect on stand (2), its characterized in that: mounting holes are uniformly distributed on the base (1), a fixing sleeve (5) for fixing the upright post (2) is arranged on the base (1), the upright post (2) is inserted into the fixing sleeve (5), a rib plate (6) for improving the connection strength of the fixing sleeve (5) and the base (1) is welded between the fixing sleeve (5) and the base (1), a positioning pin (7) for preventing the upright post (2) from rotating relative to the fixing sleeve (5) is further arranged on the fixing sleeve (5), and pin holes matched with the positioning pin (7) are formed in the fixing sleeve (5) and the upright post (2); the utility model discloses a locking device, including stand (2) and stand (2), crossbeam (3) cover is located on stand (2), be provided with on crossbeam (3) with stand (2) complex pilot hole be provided with the restriction on stand (2) crossbeam (3) position limiting plate (8), limiting plate (8) are located between crossbeam (3) and base (1), limiting plate (8) with be provided with backup pad (9) between stand (2), backup pad (9) are located between limiting plate (8) with base (1), be provided with on crossbeam (3) with crossbeam (3) locking piece (10) on stand (2), be provided with on the lateral wall of pilot hole and hold recess (11) of locking piece (10), recess (11) with the pilot hole communicates with each other, still be provided with guide bar (12) to locking piece (10) direction on locking piece (10), be provided with on crossbeam (3) with guide bar (12) and be provided with guide bar (12) lock piece (14) on stand (2) keep away from on the stand (2), the cross beam (3) is provided with a locking screw hole matched with the locking screw (14), and the locking screw hole is communicated with the groove (11);
the guide rod (12) extends towards a direction far away from the upright post (2) and protrudes out of the cross beam (3), the spring (13) is sleeved on the part, protruding out of the cross beam (3), of the guide rod (12), a stop block (15) for limiting the position of the spring (13) is arranged on the guide rod (12), one end of the spring (13) is abutted against the stop block (15), and the other end of the spring (13) is abutted against the cross beam (3);
the locking screw (14) is provided with a handle (16) which is convenient for rotating the locking screw (14), the handle (16) is welded on the locking screw (14), the handle (16) is sleeved with a rubber sleeve, and the rubber sleeve is provided with patterns for increasing the friction coefficient of the rubber sleeve;
the cross beam (3) is parallel to the horizontal plane, the lever block (4) is arranged on the cross beam (3) through a connecting seat (17), the connecting seat (17) is fixed on the lever block (4) through a screw, a sliding rail (18) is arranged on the cross beam (3), and a dovetail groove matched with the sliding rail (18) is arranged on the connecting seat (17);
the sliding rail (18) and the cross beam (3) are of an integrated structure, and the width of one side, away from the cross beam (3), of the sliding rail (18) is larger than the width of one side, contacted with the cross beam (3), of the sliding rail (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810078880.2A CN108217455B (en) | 2018-01-26 | 2018-01-26 | On-load tap-changer hoisting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810078880.2A CN108217455B (en) | 2018-01-26 | 2018-01-26 | On-load tap-changer hoisting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108217455A CN108217455A (en) | 2018-06-29 |
| CN108217455B true CN108217455B (en) | 2024-04-09 |
Family
ID=62667542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810078880.2A Active CN108217455B (en) | 2018-01-26 | 2018-01-26 | On-load tap-changer hoisting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108217455B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279526A (en) * | 2018-11-23 | 2019-01-29 | 国网青海省电力公司黄化供电公司 | A kind of combined type hoisting of for transformer load ratio bridging switch |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB668930A (en) * | 1949-02-02 | 1952-03-26 | Celanese Corp | Improvements in hoists for trucks |
| WO2008131638A1 (en) * | 2007-04-25 | 2008-11-06 | Rongsheng Li | Combined multifunctional crane and hoisting device |
| CN102910540A (en) * | 2012-11-01 | 2013-02-06 | 宁波电业局 | Hoisting device for on-load tap-changer of transformer |
| CN103693568A (en) * | 2014-01-03 | 2014-04-02 | 吴静 | Small grain hoisting machine |
| CN203806998U (en) * | 2014-05-08 | 2014-09-03 | 国家电网公司 | Transformer on-load tap-changer core lifter |
| CN106904539A (en) * | 2017-04-22 | 2017-06-30 | 秦硕 | The hand of outdoor anti-bolt corrosion is from dual-purpose hoisting apparatus |
| CN207748751U (en) * | 2018-01-26 | 2018-08-21 | 国家电网公司 | A kind of load ratio bridging switch hoisting machine |
-
2018
- 2018-01-26 CN CN201810078880.2A patent/CN108217455B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB668930A (en) * | 1949-02-02 | 1952-03-26 | Celanese Corp | Improvements in hoists for trucks |
| WO2008131638A1 (en) * | 2007-04-25 | 2008-11-06 | Rongsheng Li | Combined multifunctional crane and hoisting device |
| CN102910540A (en) * | 2012-11-01 | 2013-02-06 | 宁波电业局 | Hoisting device for on-load tap-changer of transformer |
| CN103693568A (en) * | 2014-01-03 | 2014-04-02 | 吴静 | Small grain hoisting machine |
| CN203806998U (en) * | 2014-05-08 | 2014-09-03 | 国家电网公司 | Transformer on-load tap-changer core lifter |
| CN106904539A (en) * | 2017-04-22 | 2017-06-30 | 秦硕 | The hand of outdoor anti-bolt corrosion is from dual-purpose hoisting apparatus |
| CN207748751U (en) * | 2018-01-26 | 2018-08-21 | 国家电网公司 | A kind of load ratio bridging switch hoisting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108217455A (en) | 2018-06-29 |
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