CN207852509U - A kind of off circuit tap changer - Google Patents
A kind of off circuit tap changer Download PDFInfo
- Publication number
- CN207852509U CN207852509U CN201820012751.9U CN201820012751U CN207852509U CN 207852509 U CN207852509 U CN 207852509U CN 201820012751 U CN201820012751 U CN 201820012751U CN 207852509 U CN207852509 U CN 207852509U
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- CN
- China
- Prior art keywords
- handle
- main shaft
- gear
- catch
- tap switch
- 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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Abstract
The utility model is related to transformer switch technical fields, and in particular to a kind of off circuit tap changer.Off circuit tap changer includes main shaft, and the main shaft is equipped with the handle for driving main axis；It is identified equipped with gear around main shaft on tap switch, there is the instruction unit for being directed toward gear mark on handle；It is additionally provided on tap switch and identifies one-to-one position limiting structure with each gear, the locating part for being adapted to position limiting structure is movably set on handle, locating part has with position limiting structure in the locking position of the direction block cooperation around main-shaft axis, also has the solution lock-bit that block is released with position limiting structure.The instruction position being arranged on main shaft indicates the gear mark being arranged around main shaft, it is operated convenient for technical staff, connection in off circuit tap changer can also be very visually known, it is provided with position limiting structure corresponding with gear mark simultaneously, it can ensure that handle can be made to keep lock-out state after in place in handle, to improve safety in utilization.
Description
Technical field
The utility model is related to transformer switch technical fields, and in particular to a kind of off circuit tap changer.
Background technology
In order to adapt to grid voltage change and electrical equipment demand, transformer needed in load running with tap switch come
Stepped voltage regulation is carried out, the off circuit tap changer of power transformer is also known as unloaded tap changer, it can only stop transport in transformer,
Do not have it is excitatory in the case of could be used for changing the effective turn of transformer winding, reach and change transformer voltage ratio and output voltage
Purpose.If off circuit tap changer is transferred the files not in place, whole transformer can be caused to burn out, therefore off circuit tap changer exists
Transformer is particularly significant.
Application publication number is CN105931873A, and data of publication of application is that the Chinese invention application of 2016.09.07 discloses one
Kind drum-shaped excitation-free tap switch gear converts hand-operating device, includes main shaft, gear shaft, support in the operating device
Part, gear instruction gear, gear show gear, axle sleeve, conversion head；One end of main shaft is equipped with the driving end convenient for twisting, separately
One end is set with and tightens together with conversion head；The gear shaft is arranged in parallel with main shaft, and axle sleeve, support element are primary from inside to outside
It is sleeved on the one end of main shaft close to driving end；Gear indicates that gear, gear show gear intermeshing, is set in gear
For axis on main shaft, the gear instruction gear, gear show that gear is parallel with support element and is located at the top of support element；Institute
It states the opposite end on support element and is respectively equipped with large and small hole；The opposite end of the conversion head is respectively equipped with large and small notch,
Respectively at the large and small head corresponding matching on Switch main body shaft coupling.In this application, technical staff can pass through actuating main shaft
End is driven to make switch motion in place, gear instruction gear and gear show that the mark on gear can be corresponded to obtain
The gear stages of switch conversion.
But wherein the problem is that, when technical staff uses this operating device, need other use on main shaft
The mating monkey wrench in driving end come pull driving end rotation so that Switch main body is shifted gears, operation it is relatively complicated, wherein
There is no locking structure to make spindle lock.Meanwhile shown using gear to carry out gear, the less efficient and cost of manufacture compared with
Height, while being not easy to technical staff and assembling.
Utility model content
The purpose of this utility model is to provide a kind of off circuit tap changer, have simple in structure, easy to operation is excellent
Point.
To achieve the above object, the utility model adopts the following technical solution：
Technical solution 1：Off circuit tap changer, including main shaft, the main shaft are equipped with the hand for driving main axis
Handle；It is identified equipped with gear around main shaft on the tap switch, there is the instruction unit for being directed toward gear mark on handle；Tap switch
On be additionally provided with and identify one-to-one position limiting structure with each gear, be movably set on the handle for the position limiting structure
The locating part of adaptation, locating part have with position limiting structure in the locking position of the direction block cooperation around main-shaft axis, also have
The solution lock-bit of block is released with the position limiting structure.
Advantage is：Handle drives main axis, and the instruction position being arranged on main shaft is indicated around main shaft
The gear of setting identifies, and is operated convenient for technical staff, while technical staff can be to the connection in off circuit tap changer
It is visually known very much, while being additionally provided with position limiting structure corresponding with gear mark, Neng Goubao on tap switch
Card ensures lock-out state between after in place handle and gear can identify handle, and avoiding influences because of the rotation of handle
The connection relation in switch is arrived, to improve the safety used.
Technical solution 2：On the basis of technical solution 1, the handle is combined to form by two semicircle anchor ears.
Advantage is：Handle is formed using anchor ear, forms the interconnecting piece that can coordinate with main shaft after anchor ear obvolvent,
Stable connection is simple in structure simultaneously.
Technical solution 3：On the basis of technical solution 2, the middle part of the semicircle anchor ear side is equipped with for installing
State the space of locating part.
Advantage is：Locating part is set in a middle side part of semicircle anchor ear, is easily installed, after anchor ear pairing
Intensity is higher.
Technical solution 4：On the basis of technical solution 3, the locating part is the catch for being hinged on semicircle anchor ear side.
Advantage is：Catch is hinged on anchor ear, catch rotation can be made to coordinate with semicircle anchor ear, catch
Larger space need not be occupied, while baffle structure is simple, be realized convenient for technical staff.
Technical solution 5：On the basis of technical solution 4, the instruction unit is by being arranged on handle far from catch side
Scarf is formed.
Advantage is：The scarf of one end setting diagonally downward far from catch, is observed in side on handle,
Scarf forms a tip for being directed toward gear mark, is observed convenient for technical staff.
Technical solution 6：On the basis of technical solution 5, the instruction position is with catch in 180 ° of arrangements.
Advantage is：It indicates that position is in the both sides of straight line with catch, gear is referred to after so that handle is rotated
Show more intuitively, is observed convenient for technical staff.
Technical solution 7：On the basis of technical solution 1, the gear is identified as the instruction disk coaxially arranged with handle, institute
It states instruction disk and is equipped with gear scale.
Advantage is：Using the instruction disk being arranged on main shaft, instruction disk is equipped with gear scale, technology at
It is ripe, it is simple in structure.
Technical solution 8：On the basis of technical solution 7, the catch and the groove block being arranged on shown instruction disk
Cooperation with realize rotate down with the locking bit of groove block after the rotation of limitation handle, the catch have in-position and to
Upper rotation is to be detached from the solution lock-bit coordinated with groove.
Advantage is：The groove coordinated with catch block is provided on instruction disk, catch coordinates with groove, connects
Contacting surface is larger, and there are two states with groove tool for catch rotation, are operated convenient for technical staff, action is simple, easy to implement.
Technical solution 9：On the basis of any one of technical solution 1-3, rotation stop knot is equipped between the handle and main shaft
Structure.
Advantage is：It is provided with spline structure between handle and main shaft, handle can be limited with main shaft same
When rotating, relatively rotate between handle meeting and main shaft, spline structure can ensure occur between handle and main shaft
Idle running, to ensure that rotational handle realization accurately controls connection relation in switch.
Technical solution 10：On the basis of technical solution 9, the spline structure is to be plugged in handle and rising on main shaft
Pin.
Advantage is：Using rising, pin is plugged on handle and main shaft, and the pin that rises can occur under the effect of external force
Deformation is fastened in main shaft and handle, rise pin can the clamping at cooperation by the deformation of itself, main shaft can be made tight with handle
Close connection ensure that main shaft is moved synchronously with handle.
Description of the drawings
Fig. 1 is off circuit tap changer vertical view in the utility model；
Fig. 2 is off circuit tap changer front view in the utility model；
Fig. 3 is the structural schematic diagram for indicating disk in the utility model in off circuit tap changer.
In figure：1. anchor ear；2. main shaft；21. rise pin；3. axis pin；4. catch；41. protrusion；5 instruction disks；51 positioning grooves；
52. digital calibration.
Specific implementation mode
As shown in Figure 1 to Figure 3, it is a kind of embodiment of off circuit tap changer in the utility model：No excitation tap is opened
Pass includes main shaft 2, and main shaft 2 is connected with the movement structure in tap switch, and main shaft 2 rotates the company that can change inside tap switch
Relationship between contact.Tap switch further includes the handle that main shaft 2 can be driven to rotate, and has gear information in outer surface markers
Indicate disk 5, handle is by connecting the setting of main shaft 2 on instruction disk 5.
Wherein, handle includes being operated for technical staff and to the indicative catch of gear where tap switch, handle by
The anchor ear 1 of two semi-circular shape forms, and two pieces of anchor ears 1 make two semi-circular shape grooves define one when enclosing can be with main shaft
Fixation is realized in the side of 2 cylindrical spaces being rotatably assorted, handle by welding, and gear information can be carried out by foring one
The scarf of instruction reserves certain space between two anchor ear 1 of the other side, the catch 4 for being provided as locating part, catch 4
Be fastened between two pieces of anchor ears 1, and through-hole offered on catch 4, connect for realizing with handle, on handle be equipped with
The axis pin 3 of through-hole cooperation on catch 4, catch 4 can realize next pair of rotation it should be noted that at this time where tap switch around axis pin
Gear.Wherein scarf makes catch 4 be in the both ends of straight line with scarf with catch 4 in 180 ° of arrangements.It is set on catch 4
Have when reaching requirement position, to catch 4 into line-locked protrusion 41, protrusion 41 can after catch 4 rotates down with instruction
The positioning groove 51 that position limiting structure is provided as in disk 5 realizes locking cooperation.
The top of main shaft 2 is plugged in handle and is formed by cylindrical space, and coordinates with handle in main shaft 2 and main shaft 2
Interconnecting piece on setting rise pin 21, to realize being fixedly connected for main shaft 2 and handle, when main shaft 2 rotates, catch 4 will not be with master
Relative displacement occurs for axis 2.Instruction disk 5 is plate-like, and through-hole is offered at the centre of gyration, and the lower part of main shaft 2 is plugged in finger
Show in the through-hole on disk 5, can realize being freely rotated in instruction disk 5 of main shaft 2, the end of main shaft 2 is connected with operating mechanism,
It can change to the connection structure in switch.The number quarter for capableing of gear where display switch is provided on instruction disk 5
Degree 52, and be arranged in along the centre of gyration of instruction disk 5 positioning groove 51 in instruction disk 5 outside, positioning groove 51 can with set
It sets the protrusion 41 on catch 4 and realizes locking cooperation, the rotation of catch 4 can be limited.
When technical staff is using off circuit tap changer in the utility model, catch 4 is rotated, catch 4 and have anchor ear 1
The handle formed is fixedly connected, and handle realizes the company with main shaft 2 further through the cylindrical installation space that anchor ear 1 is surrounded
It connects, and is equipped with the position limiting structure of limitation handle and 2 relative motion of main shaft on main shaft 2, i.e., be plugged on main shaft 2 across handle
The pin 21 that rises.Based on above-mentioned structure, catch 4 can drive with fixed handle, handle in rotation and be secured to connection
Main shaft 2 rotates, and main shaft 2 can drive actuating structure to realize the variation of switch internal connection relation, reach and require after catch 4 rotates
Position after, catch 4 is directed toward the digital calibration 52 of some gear instruction, and falls into and set relative to the one end for being directed toward digital calibration 52
It is equipped in the region of positioning groove 51, catch 4 is pulled down, catch 4 is rotated around axis pin 3, and is arranged below catch 4
Protrusion 41 presses to instruction disk 5, and instruction disk 5 is equipped with positioning groove 51 corresponding with protrusion 41, and protrusion 41 enters positioning groove
In 51, protrusion 41 coordinates with 51 locking of positioning groove, realizes catch 4 and indicates the positioning of disk 5, catch 4 no longer rotates at this time.
In other embodiments, the handle formed by anchor ear can also replace other forms, set handle to integral type
Structure, being provided on handle can be for endoporus that main shaft plugs and the space installed for catch.Such as set handle to U-shaped
Structure is connected with main shaft in the inside groove of U-shaped structure, and the opening of U-shaped structure is provided with catch.
In other embodiments, locating part can also be not provided at the cooperation of main shaft and handle, but by main shaft and handle
Weld together, main shaft can be made synchronous with handle and acted on instruction disk.
In other embodiments, locating part can also be not provided at the cooperation of main shaft and handle, such as by handle and main shaft
Between be set as being keyed, or tetragonal is set on main shaft, is coordinated using the tetragonal on handle and main shaft, to realize
Rotation stop cooperation between handle and main shaft.
In other embodiments, the locating part at main shaft and handle cooperation, which is arranged, can also replace other forms, such as
Bayonet lock is plugged at the cooperation of main shaft and handle, bayonet lock can limit the relative rotation of main shaft and handle, while bonding strength
It is relatively stable.
In other embodiments, catch may be arranged as other forms, such as set catch and handle to catch energy
It is enough that direct acting, catch can be with instruction disk lockings up and down in the space that handle is reserved.
Claims (10)
1. off circuit tap changer, including main shaft, it is characterised in that：The main shaft is equipped with the hand for driving main axis
Handle；It is identified equipped with gear around main shaft on the tap switch, there is the instruction unit for being directed toward gear mark on handle；Tap switch
On be additionally provided with and identify one-to-one position limiting structure with each gear, be movably set on the handle for the position limiting structure
The locating part of adaptation, locating part have with position limiting structure in the locking position of the direction block cooperation around main-shaft axis, also have
The solution lock-bit of block is released with the position limiting structure.
2. tap switch according to claim 1, it is characterised in that：The handle is by two semicircle anchor ear pairing shapes
At.
3. tap switch according to claim 2, it is characterised in that：The middle part of the semicircle anchor ear side is equipped with and is used for
The space of the locating part is installed.
4. tap switch according to claim 3, it is characterised in that：The locating part is to be hinged on semicircle anchor ear side
Catch.
5. tap switch according to claim 4, it is characterised in that：The instruction unit is by being arranged on handle far from catch
The scarf of side is formed.
6. tap switch according to claim 5, it is characterised in that：The instruction unit is with catch in 180 ° of arrangements.
7. tap switch according to claim 4, it is characterised in that：The gear is identified as the finger coaxially arranged with handle
Show that disk, the instruction disk are equipped with gear scale.
8. tap switch according to claim 7, it is characterised in that：The catch be arranged it is described instruction disk on it is recessed
The cooperation of slot block is to realize the rotation of limitation handle, and the catch is with the locking rotated down behind in-position with groove block
Position and be rotated up be detached from groove coordinate solution lock-bit.
9. tap switch according to any one of claim 1-3, it is characterised in that：It is equipped between the handle and main shaft
Spline structure.
10. tap switch according to claim 9, it is characterised in that：The spline structure is to be plugged in handle and main shaft
On the pin that rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012751.9U CN207852509U (en) | 2018-01-04 | 2018-01-04 | A kind of off circuit tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012751.9U CN207852509U (en) | 2018-01-04 | 2018-01-04 | A kind of off circuit tap changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852509U true CN207852509U (en) | 2018-09-11 |
Family
ID=63417153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820012751.9U Expired - Fee Related CN207852509U (en) | 2018-01-04 | 2018-01-04 | A kind of off circuit tap changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207852509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616343A (en) * | 2018-12-21 | 2019-04-12 | 云南电网有限责任公司电力科学研究院 | A kind of the tap changer gear display device and method of distribution transformer |
-
2018
- 2018-01-04 CN CN201820012751.9U patent/CN207852509U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616343A (en) * | 2018-12-21 | 2019-04-12 | 云南电网有限责任公司电力科学研究院 | A kind of the tap changer gear display device and method of distribution transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 Termination date: 20220104 |