CN111086951A - Hoisting device for on-load tap-changer of transformer - Google Patents
Hoisting device for on-load tap-changer of transformer Download PDFInfo
- Publication number
- CN111086951A CN111086951A CN201911390818.8A CN201911390818A CN111086951A CN 111086951 A CN111086951 A CN 111086951A CN 201911390818 A CN201911390818 A CN 201911390818A CN 111086951 A CN111086951 A CN 111086951A
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- CN
- China
- Prior art keywords
- changer
- rod
- transformer
- load tap
- motor
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C25/00—Cranes not provided for in groups B66C17/00 - B66C23/00
Abstract
The invention provides a hoisting device for an on-load tap-changer of a transformer, which comprises: the lifting hook position adjusting mechanism comprises a first motor, a telescopic rod, a sliding rod, a fixed rod, a front pulley, a rear pulley and a second motor, wherein the first motor is arranged at the tail end of the lifting arm; the second motor is arranged on the supporting rod and is connected with the lifting hook through a rope, and the rope is respectively supported on the front pulley and the rear pulley. The invention can greatly facilitate the hoisting inspection work in the overhaul of the on-load tap-changer of the indoor transformer, reduce the hoisting inspection time, solve the problem of inconvenient hoisting due to the narrow top space of the indoor transformer and further improve the working efficiency.
Description
Technical Field
The invention relates to a hoisting device for an on-load tap-changer of a transformer, in particular to a hoisting device for an on-load tap-changer of a power transformer, which can be suitable for being installed and used above a large transformer.
Background
The on-load tap changer is used as an important voltage regulating device of the transformer and plays an important role in the running process of the transformer. According to the requirement of the latest five-way transformer, when the action times or the operation years of the on-load tap-changer reach the required value of a manufacturer, the overhaul work of the on-load tap-changer is required. And the overhaul needs to hang out the change-over switch of the on-load tap-changer for inspection. The method commonly used in the current equipment maintenance operation is to use a crane for hoisting. When the main transformer is located indoors, the crane is difficult to enter indoors to complete the auxiliary hoisting inspection work of the on-load tap-changer due to the fact that the overhead working truck of the crane is large in size and the mechanical hoisting arm of the truck body is long, and under the condition that the working space is narrow during field operation. Therefore, a hoisting device which can be installed and used above the transformer is urgently needed at present to solve the problem that the indoor transformer cannot use hoisting equipment.
Disclosure of Invention
The invention aims to provide a hoisting device for an on-load tap-changer of a transformer, which is used for reducing the hoisting time of the on-load tap-changer of an indoor transformer in overhaul, solving the problem of inconvenient hoisting due to narrow top space of the indoor transformer and further improving the working efficiency.
The technical scheme adopted by the invention is as follows:
the embodiment of the invention provides a hoisting device for an on-load tap-changer of a transformer, which comprises: the lifting hook position adjusting mechanism comprises a first motor, a telescopic rod, a sliding rod, a fixed rod, a front pulley, a rear pulley and a second motor, wherein the first motor is arranged at the tail end of the lifting arm, one end of the telescopic rod is connected with the first motor, the other end of the telescopic rod is connected with the sliding rod, the upper end of the sliding rod is arranged at the front end of the lifting arm in a sliding mode and is connected with the telescopic rod, the lower end of the sliding rod is provided with the front pulley, the upper end of the fixed rod is arranged at the rear end of the lifting arm, and the lower end of the fixed rod is provided with the rear pulley; the second motor is arranged on the supporting rod and connected with the lifting hook through a rope, and the rope is respectively supported on the front pulley and the rear pulley.
Optionally, the support rod and the boom are rotatably connected.
Optionally, the base is semi-circular.
Optionally, a bolt fixing hole is formed in the base, and the bolt fixing hole is used for being connected with a fastening bolt of the on-load tap-changer.
Optionally, a hanging part for hanging the hook is arranged on the sliding rod.
Optionally, a connecting rod is arranged between the suspension arm and the support rod.
Optionally, a reinforcing rod is arranged on the supporting rod.
According to the hoisting device for the on-load tap-changer of the transformer, provided by the embodiment of the invention, the base is fixed on the flange plate of the on-load tap-changer, then the first motor of the hook position adjusting mechanism is started to adjust the hook to the position suitable for hoisting the tap-changer, then the second motor is started to drive the rope to move upwards along the pulley, so that the hook moves upwards to hoist the tap-changer, the hoisting inspection work in the overhaul of the on-load tap-changer of the indoor transformer can be greatly facilitated, the hoisting inspection time is reduced, the problem that the hoisting is inconvenient due to the narrow top space of the indoor transformer is solved, and the working efficiency is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a hoisting device of an on-load tap-changer of a transformer according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a base of the hoisting device for the on-load tap-changer of the transformer according to the embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a hoisting apparatus for an on-load tap-changer of a transformer, including: the device comprises a base 1, a support rod 2, a suspension arm 6, a lifting hook 13 and a lifting hook position adjusting mechanism, wherein the base 1 is used for being connected with a flange plate (not shown) of an on-load tap-changer, one end of the supporting rod 2 is connected with the base 1, the other end is connected with the suspension arm 6, the lifting hook position adjusting mechanism comprises a first motor 8, an expansion rod 9, a sliding rod 10, a fixed rod 7, a front pulley 12, a rear pulley 5 and a second motor 15, the first motor 8 is arranged at the tail end of the suspension arm 6, one end of the telescopic rod 9 is connected with the first motor 8, the other end is connected with the sliding rod 10, the upper end of the sliding rod 10 is arranged at the front end of the suspension arm 6 in a sliding manner and is connected with the telescopic rod 9, the lower end is provided with the front pulley 12, the upper end of the fixed rod 7 is arranged at the rear end of the suspension arm 6, and the lower end of the fixed rod is provided with the rear pulley 5; the second motor 15 is arranged on the support rod 2 and connected with the lifting hook 13 through a rope 14, and the rope 14 is respectively supported on the front pulley 5 and the rear pulley 12.
In the embodiment of the present invention, the first motor 8 may be a dc motor, and by driving the first motor 8, the telescopic rod 9 can move forward and backward, and further the sliding rod 10 and the hook 13 are driven to move forward and backward, so as to adapt to different central positions, i.e. to different tap changer sizes, and thus accurately lift the disconnector. In addition, the first motor 8 is fixed at the tail end of the suspension arm 6, so that the suspension arm can not be drawn into a rope when rotating, and can play a role of counterweight. The second motor 15 may be a control motor, which may be controlled by a remote control. By driving the second motor 15, the rope 14 is driven to move upwards along the pulley, and the hook 13 is driven to move upwards to hoist the on-load tap-changer.
In the embodiment of the present invention, the support rod 2 and the suspension arm 6 are rotatably connected, for example, by using a bearing to connect, so as to ensure that the suspension arm 6 can rotate on the support rod 2, for example, 180 degrees, and thus can realize the functions of support and suspension arm rotation, and after the suspension arm 6 lifts the tap changer, the tap changer can be rotated to a position with an empty space therebelow, that is, the tap changer can be stably dropped to the ground, and the opposite is true during the lifting.
Further, as shown in fig. 2, in the embodiment of the present invention, the base 1 may be a semicircular ring shape, so as to be closely attached to a circular flange of a tap changer. Furthermore, a bolt fixing hole 16 is provided on the base 1, and the bolt fixing hole 16 is used for connecting with a fastening bolt of the on-load tap-changer. Therefore, the base of the hoisting device can be fixed on the flange plate of the tap switch by directly utilizing the fastening bolt of the on-load tap switch, and the whole hoisting device can be ensured to be firmly fixed above the transformer.
Further, in the embodiment of the present invention, the sliding rod 10 is provided with a hanging part 11 for hanging the hook, so that when the tap changer is not lifted, the hook 13 is hung on the hanging part 11, and the hook 13 is prevented from moving downward due to gravity. In addition, a connecting rod 4 is arranged between the suspension arm 6 and the support rod 2 to strengthen the connection between the two. And, still be provided with the stiffener 3 on the bracing piece 2 to strengthen the holding power of bracing piece 2.
To sum up, according to the hoisting device for the on-load tap-changer of the transformer provided by the embodiment of the invention, the base is fixed on the flange of the on-load tap-changer, then the first motor of the hook position adjusting mechanism is started to adjust the hook to the position suitable for hoisting the tap-changer, then the second motor is started to drive the rope to move upwards along the pulley, so that the hook moves upwards to hoist the tap-changer, the hoisting inspection work in the overhaul of the on-load tap-changer of the indoor transformer can be greatly facilitated, the hoisting inspection time is reduced, the problem that the hoisting is inconvenient due to the narrow top space of the indoor transformer is solved, and the working efficiency is further improved.
The above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A transformer on-load tap-changer hoisting device is characterized by comprising: the lifting hook position adjusting mechanism comprises a first motor, a telescopic rod, a sliding rod, a fixed rod, a front pulley, a rear pulley and a second motor, wherein the first motor is arranged at the tail end of the lifting arm, one end of the telescopic rod is connected with the first motor, the other end of the telescopic rod is connected with the sliding rod, the upper end of the sliding rod is arranged at the front end of the lifting arm in a sliding mode and is connected with the telescopic rod, the lower end of the sliding rod is provided with the front pulley, the upper end of the fixed rod is arranged at the rear end of the lifting arm, and the lower end of the fixed rod is provided with the rear pulley; the second motor is arranged on the supporting rod and connected with the lifting hook through a rope, and the rope is respectively supported on the front pulley and the rear pulley.
2. The transformer on-load tap-changer hoisting device of claim 1, wherein the support rod is rotatably connected with the boom.
3. The transformer on-load tap-changer hoisting device according to claim 1, wherein the base is semi-circular.
4. The transformer on-load tap-changer hoisting device according to claim 1, wherein the base is provided with bolt fixing holes for connecting with fastening bolts of the on-load tap-changer.
5. The transformer on-load tap-changer hoisting device according to claim 1, wherein a hanging part for hanging the hook is arranged on the sliding rod.
6. The transformer on-load tap-changer hoisting device according to claim 1, wherein a connecting rod is arranged between the suspension arm and the support rod.
7. The transformer on-load tap-changer hoisting device according to claim 1, wherein a reinforcing rod is arranged on the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390818.8A CN111086951A (en) | 2019-12-30 | 2019-12-30 | Hoisting device for on-load tap-changer of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390818.8A CN111086951A (en) | 2019-12-30 | 2019-12-30 | Hoisting device for on-load tap-changer of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111086951A true CN111086951A (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390818.8A Pending CN111086951A (en) | 2019-12-30 | 2019-12-30 | Hoisting device for on-load tap-changer of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111086951A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689417A (en) * | 2020-06-15 | 2020-09-22 | 张达芬 | Anti-falling elevator for building |
| CN112061898A (en) * | 2020-07-08 | 2020-12-11 | 国网浙江嵊州市供电有限公司 | Rotatable davit lifting device of column switch |
| CN113860184A (en) * | 2021-12-03 | 2021-12-31 | 畅达峰电力科技有限公司 | Special hoisting accessory of portable transformer on-load switch |
| CN114148921A (en) * | 2021-11-15 | 2022-03-08 | 广西电网有限责任公司南宁供电局 | Transformer suspended core maintenance system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203255900U (en) * | 2013-05-28 | 2013-10-30 | 国家电网公司 | Hoisting apparatus for hoisting on-load tap-changing mechanism of transformer |
| CN205687433U (en) * | 2016-06-17 | 2016-11-16 | 国网山东省电力公司威海供电公司 | A kind of on-load tap changers of transformers boom hoisting |
| CN109678062A (en) * | 2018-12-24 | 2019-04-26 | 江苏联峰工业装备科技有限公司 | Lifting device is used in a kind of processing of collars |
-
2019
- 2019-12-30 CN CN201911390818.8A patent/CN111086951A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203255900U (en) * | 2013-05-28 | 2013-10-30 | 国家电网公司 | Hoisting apparatus for hoisting on-load tap-changing mechanism of transformer |
| CN205687433U (en) * | 2016-06-17 | 2016-11-16 | 国网山东省电力公司威海供电公司 | A kind of on-load tap changers of transformers boom hoisting |
| CN109678062A (en) * | 2018-12-24 | 2019-04-26 | 江苏联峰工业装备科技有限公司 | Lifting device is used in a kind of processing of collars |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689417A (en) * | 2020-06-15 | 2020-09-22 | 张达芬 | Anti-falling elevator for building |
| CN112061898A (en) * | 2020-07-08 | 2020-12-11 | 国网浙江嵊州市供电有限公司 | Rotatable davit lifting device of column switch |
| CN112061898B (en) * | 2020-07-08 | 2024-03-12 | 国网浙江嵊州市供电有限公司 | Rotatable boom lifting equipment for pole-mounted switch |
| CN114148921A (en) * | 2021-11-15 | 2022-03-08 | 广西电网有限责任公司南宁供电局 | Transformer suspended core maintenance system |
| CN113860184A (en) * | 2021-12-03 | 2021-12-31 | 畅达峰电力科技有限公司 | Special hoisting accessory of portable transformer on-load switch |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20200501 |