CN210120052U - On-load tap-changer capacity regulating device - Google Patents
On-load tap-changer capacity regulating device Download PDFInfo
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- CN210120052U CN210120052U CN201921546550.8U CN201921546550U CN210120052U CN 210120052 U CN210120052 U CN 210120052U CN 201921546550 U CN201921546550 U CN 201921546550U CN 210120052 U CN210120052 U CN 210120052U
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Abstract
The utility model provides a have on-load tap-changer to transfer appearance device, include: the capacity-adjusting driving mechanism is movably arranged on the first support and is in linkage connection with the gear selection mechanism, and the capacity-adjusting driving mechanism is provided with an initial position and a gear action position which is driven by external force and drives the gear selection mechanism to switch gears; the electromagnetic driving mechanism is connected with the capacity regulating driving mechanism and drives the capacity regulating driving mechanism to switch between an initial position and a gear action position; and the positioning and maintaining mechanism is connected with the capacity regulating driving mechanism or the electromagnetic driving mechanism in a positioning way when the capacity regulating driving mechanism moves to the gear action position, so that the capacity regulating driving mechanism is maintained at the gear action position. The electromagnetic driving mode is fast in speed, electric arcs are not easy to generate during gear switching, the service life of a product is prolonged, and in addition, the positioning and maintaining mechanism is connected with the capacity adjusting driving mechanism or the electromagnetic driving mechanism in a positioning mode when the capacity adjusting driving mechanism moves to a gear action position, so that the gear switching is accurate.
Description
Technical Field
The utility model relates to an on-load tap-changer technical field, concretely relates to on-load tap-changer holds device by transferring.
Background
In the electric power supply system, often meet some seasonal or periodic loads, when the power consumption peak, need have the transformer of large capacity just can satisfy the power consumption demand, and when the power consumption peak, there is no-load loss in the transformer of great capacity, has wasted a large amount of electric energy, consequently, the accent of on-load tap-changer holds the device and can change the coil connection of transformer to realize the switching of high appearance and low appearance, reduced the loss, practiced thrift the electric energy.
The on-load tap-changer is divided into a rotary drum type gear structure and a linear type gear structure according to different movement modes of a gear selection mechanism, and Chinese patent document CN109449018A discloses an on-load tap-changer which comprises a motor, a linear driving system and a gear selection mechanism, wherein the linear driving system comprises a transmission shaft, a gear set, a bevel gear and a screw rod, the transmission shaft is driven by the motor to rotate, the transmission shaft drives the bevel gear to rotate through the gear set, and the bevel gear is meshed with the screw rod so as to drive the gear selection mechanism to switch between different gears. In addition, the transmission part of the linear driving system is provided with a transmission shaft, a gear set, a bevel gear and a lead screw, the transmission part is more, the transmission loss of force is large, the structure of the linear driving system is complex, the assembly process is complex, and the production cost is greatly increased.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the on-load tap-changer among the prior art and producing electric arc easily, and life is short, and linear drive system's structure is complicated, defect that manufacturing cost is high to a long service life, simple structure, low in production cost have on-load tap-changer to transfer to hold the device is provided.
Therefore, the utility model provides an it transfers appearance device to have on-load tap-changer, include:
the capacity-adjusting driving mechanism is movably arranged on the first support and is in linkage connection with the gear selection mechanism, and the capacity-adjusting driving mechanism is provided with an initial position and a gear action position which is driven by external force and drives the gear selection mechanism to switch gears;
the electromagnetic driving mechanism is connected with the capacity regulating driving mechanism and drives the capacity regulating driving mechanism to switch between the initial position and the gear action position;
and the positioning and holding mechanism is connected with the capacity adjusting driving mechanism or the electromagnetic driving mechanism in a positioning way when the capacity adjusting driving mechanism moves to the gear position action position, so that the capacity adjusting driving mechanism is held at the gear position action position.
As a preferable mode, the electromagnetic driving mechanism includes:
the first coil framework and the second coil framework are arranged along the same axis, a first coil and a second coil are respectively wound on the outer wall of the first coil framework and the second coil framework, and the first coil framework and the second coil framework are provided with hollow inner cavities;
the movable iron core is movably arranged in the inner cavity and is provided with a middle through hole in a forming mode;
the push rod penetrates through the middle through hole and is in linkage arrangement with the movable iron core, and the end part of the push rod, which extends out of the inner cavity, is connected with the capacity regulating driving mechanism;
when the gears are switched, only one of the first coil and the second coil is in an electrified state, the first coil generates an electromagnetic driving force for driving the movable iron core to move towards one direction, and the second coil generates an electromagnetic driving force for driving the movable iron core to move towards the opposite direction.
As a preferable aspect, the positioning and holding mechanism includes:
the two capacity-adjusting iron cores are respectively arranged at two sides of the moving direction of the movable iron core, and two permanent magnets are arranged at the middle parts of the two capacity-adjusting iron cores towards one side of the movable iron core;
when the movable iron core is at the gear action position, the movable iron core, the corresponding capacity-regulating iron core and the permanent magnet form a magnetic flux loop so that the movable iron core is kept at the gear action position.
As a preferable scheme, the capacity-adjusting driving mechanism comprises:
the fixed plate is movably arranged on the back surface of the first bracket, and a movable contact seat is arranged on the fixed plate;
the capacity adjusting driving piece is arranged at least one end of the push rod, penetrates through a first strip-shaped hole formed in the first support from the front side of the first support and then is connected with the fixed plate in a matched mode;
the biasing part is sleeved on the push rod, one end of the biasing part is abutted to the push rod mounting frame, and the other end of the biasing part is opposite to the capacity regulating driving part.
As a preferable scheme, a travel switch electrically connected with an external display to display the gear position is further arranged on the first support, and a travel positioning sheet which is matched with the travel switch to act is arranged on the capacity-adjusting driving piece.
As a preferable scheme, the capacity-adjusting driving mechanism further comprises a limiting structure for limiting the moving position of the fixing plate, and the limiting structure comprises:
the second strip-shaped hole is arranged on the first bracket and is parallel to the first strip-shaped hole;
and one end of the positioning column is connected with the fixing plate, and the other end of the positioning column extends into the second strip-shaped hole.
As a preferable mode, the gear selection mechanism includes:
the movable contact seats are arranged on the fixed plate, and two groups of main contact assemblies are respectively arranged on two sides of each movable contact seat along the moving direction of the movable contact seat;
and the plurality of static contact assemblies are arranged on the second bracket and are provided with static contacts connected or disconnected with the main contact assembly.
As a preferred aspect, the main contact assembly includes:
the conductive plate is integrally formed on the movable contact seat and is provided with a first through hole;
the two moving contact clamping pieces are respectively arranged on the upper side and the lower side of the current conducting plate and are provided with second through holes which are arranged opposite to the first through holes, and the parts of the two moving contact clamping pieces, which extend out of the current conducting plate, are opposite to each other to form a clamping space suitable for clamping a static contact;
and the pin assembly fixedly connects the two moving contact clamping pieces with the conductive plate after penetrating through the first through hole and the second through hole.
As a preferred scheme, the movable contact seat is provided with two auxiliary contact assemblies and two main contact assemblies in a staggered mode along one side of the moving direction of the movable contact seat, one side, far away from the fixed contact assembly, of the movable contact seat is provided with a transition resistor, and the transition resistor is connected with the auxiliary contact assemblies and the main contact assemblies through wires respectively.
As a preferred scheme, the fixed contact assembly includes two first fixed contacts and a second fixed contact which are sequentially arranged along the length direction of the second bracket, the first fixed contact has two first fixed contact plates which are arranged in parallel, and the second fixed contact is a U-shaped fixed contact plate;
and support shafts in guide transition fit with the main contact assembly are further arranged between every two adjacent first fixed contacts and between the first fixed contacts and the second fixed contacts.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an on-load tap-changer transfers appearance device, including transferring appearance actuating mechanism, gear selection mechanism, electromagnetic drive mechanism and location hold mechanism, electromagnetic drive mechanism with transfer and hold actuating mechanism and be connected, the drive is transferred and is held actuating mechanism and switch between initial position and gear action position, compare with the mode that prior art adopted the motor, the drive mode that adopts the electromagnetism is fast, be difficult for producing electric arc when the gear switches, the life of product has been prolonged, in addition, location hold mechanism is transferring when holding actuating mechanism and removing to gear action position, with transfer and hold actuating mechanism or electromagnetic drive mechanism location and be connected, so that transfer and hold actuating mechanism and keep at gear action position, make the gear switch accurate like this.
2. The utility model provides an it transfers appearance device to have on-load tap-changer, electromagnetic drive mechanism includes: the first coil framework and the second coil framework are arranged along the same axis, a first coil and a second coil are respectively wound on the outer wall of the first coil framework and the second coil framework, and the first coil framework and the second coil framework are provided with hollow inner cavities; the movable iron core is movably arranged in the inner cavity and is formed with a middle through hole; the push rod penetrates through the middle through hole and is linked with the movable iron core, and the end part of the push rod, which extends out of the inner cavity, is connected with the capacity regulating driving mechanism; only one of the first coil and the second coil is in an electrified state during gear switching, and the first coil and the second coil can generate electromagnetic driving force for driving the movable iron core to move towards opposite directions. When the high capacity is required to be adjusted to the low capacity, the first coil is electrified to drive the movable iron core to move towards one direction, the capacity adjusting driving mechanism is driven to move through the push rod, the gear selecting mechanism is enabled to switch gears, and after gear switching is completed, the first coil is powered off; when the high capacitance is adjusted from the low capacitance, the second coil is electrified to drive the movable iron core to move towards the opposite direction, and then the capacitance adjusting driving mechanism is driven to move through the push rod, so that the gear selecting mechanism switches gears, and after gear switching is completed, the second coil is powered off.
3. The utility model provides a have on-load tap-changer to transfer appearance device, location hold mechanism includes: the two capacity-regulating iron cores are respectively arranged at two sides of the moving direction of the movable iron core, and two permanent magnets are arranged at the middle parts of the two capacity-regulating iron cores towards one side of the movable iron core; when the movable iron core is at the gear action position, the movable iron core, the corresponding capacity-regulating iron core and the permanent magnet form a magnetic flux loop so as to keep the movable iron core at the gear action position.
4. The utility model provides a have on-load tap-changer to transfer appearance device, gear selection mechanism includes: the movable contact seats are arranged on the fixed plate, and two groups of main contact assemblies are respectively arranged on two sides of each movable contact seat along the moving direction of the movable contact seat; and the plurality of static contact assemblies are arranged on the second bracket and are provided with static contacts connected or disconnected with the main contact assembly. Because the main contact assembly adopts the mode of upper and lower independent distribution, make the creepage distance between the two great that can set up like this, be difficult for producing electric arc.
5. The utility model provides a have on-load tap-changer to transfer appearance device, main contact subassembly includes: the conductive plate is integrally formed on the movable contact seat and is provided with a first through hole; the two moving contact clamping pieces are respectively arranged on the upper side and the lower side of the current conducting plate and are provided with second through holes which are arranged opposite to the first through holes, and the parts of the two moving contact clamping pieces, which extend out of the current conducting plate, are opposite to each other to form a clamping space suitable for clamping a static contact; and the pin assembly fixedly connects the two moving contact clamping pieces with the current conducting plate after penetrating through the first through hole and the second through hole. Through setting up the current conducting plate, increased the area of contact between two moving contact folder, reduced the contact resistance of each contact subassembly, be favorable to reducing calorific capacity.
6. The utility model provides an on-load tap-changer holds device, between two adjacent first static contacts, still be provided with between first static contact and the second static contact with auxiliary contact subassembly and main contact subassembly direction transition fit's back shaft, the back shaft can make main contact subassembly transition more steady, fast when switching, reduces the striking between movable contact subassembly and the static contact subassembly, long service life, and the noise is little when switching the process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of the capacity regulating device of the on-load tap-changer of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a perspective view of the electromagnetic drive mechanism and a portion of the capacity-modulated drive mechanism;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a perspective view of the gear selection mechanism in the high-volume gear position;
FIG. 7 is a perspective view of the shift selection mechanism in the low-volume shift position;
FIG. 8 is a perspective view of a movable contact block;
FIG. 9 is a cross-sectional view of FIG. 8;
FIG. 10 is a perspective view of the stationary contact assembly mounted to a second bracket;
FIG. 11 is a top view of FIG. 10;
FIG. 12 is a cross-sectional view taken along line A-A of FIG. 11;
fig. 13 is a cross-sectional view taken along the line B-B in fig. 11.
Description of reference numerals: 1. a first bracket; 11. a first bar-shaped hole; 12. a second bar-shaped hole; 13. a travel switch; 2. an electromagnetic drive mechanism; 21. a first coil bobbin; 22. a second coil bobbin; 23. a movable iron core; 24. a push rod; 3. adjusting the capacity of the iron core; 30. a first capacity-adjusted iron core; 31. a permanent magnet; 32. a second capacity-adjusted iron core; 4. a fixing plate; 41. a capacity-adjusting driving piece; 42. a biasing member; 43. a stroke positioning sheet; 44. a positioning column; 5. a movable contact seat; 51. a transition resistance; 6. a primary contact assembly; 61. a conductive plate; 62. a moving contact clamping piece; 63. a pin assembly; 7. a stationary contact assembly; 71. a first fixed contact; 72. a second fixed contact; 73. a support shaft; 8. a second bracket; 9. an auxiliary contact assembly.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Examples
The present embodiment provides a capacity regulating device for an on-load tap-changer, as shown in fig. 1 and 2, comprising a capacity regulating driving mechanism, an electromagnetic driving mechanism 2, a positioning and holding mechanism, and a gear selecting mechanism.
As shown in fig. 3 to 5, the electromagnetic drive mechanism 2 includes a first coil bobbin 21, a second coil bobbin 22, a movable iron core 23, and a push rod 24.
The first coil framework 21 and the second coil framework 22 are arranged along the same axis, a first coil and a second coil are respectively wound on the outer walls of the first coil framework 21 and the second coil framework 22, and the first coil framework 21 and the second coil framework 22 are provided with hollow inner cavities; the movable iron core 23 is movably arranged in the inner cavity, and a middle through hole is formed in the movable iron core 23; the push rod 24 penetrates through the middle through hole and is in linkage arrangement with the movable iron core 23, and the end part of the push rod 24, extending out of the inner cavity, is connected with the capacity regulating driving mechanism; only one of the first coil and the second coil is in an energized state during gear shifting, the first coil generates an electromagnetic driving force for driving the movable iron core 23 to move in one direction, and the second coil generates an electromagnetic driving force for driving the movable iron core 23 to move in the opposite direction.
The positioning and holding mechanism includes: the two capacity-adjusting iron cores 3 are respectively arranged at two sides of the moving direction of the movable iron core 23, and two permanent magnets 31 are arranged at the middle parts of the two capacity-adjusting iron cores 3 towards one side of the movable iron core 23; when the movable iron core 23 is in the shift position, the movable iron core 23, the corresponding capacity-regulating iron core 3 and the corresponding permanent magnet 31 form a magnetic flux loop, so that the movable iron core 23 is kept in the shift position, as shown in fig. 5, which is a high capacity shift position, the movable iron core 23, the first capacity-regulating iron core portions 30 and the permanent magnets 31 on both sides form a magnetic flux loop, and when the movable iron core 23 moves to the low capacity shift position in the right direction of fig. 5, the movable iron core 23, the second capacity-regulating iron core portions 32 and the permanent magnets 31 on both sides form a magnetic flux loop. When the gears are switched, the first coil or the second coil is powered on to drive the movable iron core 23 to move, and then the gear selection mechanism is driven to move to a set gear position, the first coil or the second coil is powered off, and at the moment, the positioning and holding mechanism can keep the movable iron core 23 at the set position.
As shown in fig. 2 and 3, the capacity-regulating drive mechanism includes: the fixed plate 4 is movably arranged on the back surface of the first bracket 1, and a movable contact seat 5 is arranged on the fixed plate 4; the capacity-adjusting driving parts 41 are arranged at two ends of the push rod 24, and the capacity-adjusting driving parts 41 penetrate through the first strip-shaped holes 11 formed in the first support 1 from the front surface of the first support 1 and then are connected with the fixing plate 4 in a matching manner; the biasing element 42 is sleeved on the push rod 24, one end of the biasing element abuts against the push rod mounting frame, and the other end of the biasing element is opposite to the capacity adjusting driving element 41; limit structure includes: the second strip-shaped hole 12 is arranged on the first support 1 and is parallel to the first strip-shaped hole 11; reference column 44, one end with fixed plate 4 is connected, and one end stretches into second bar hole 12 still be provided with on the first support 1 with the external display electricity be connected, with the travel switch 13 that shows the gear position, transfer hold be equipped with on the driving piece 41 with travel switch 13 cooperation action's stroke location piece 43, when travel switch 13 removed to setting for the gear position, trigger travel switch 13 and send actuating signal, the corresponding gear state can be shown to the external display to indicate operating personnel.
As shown in fig. 6 and 7, the gear selection mechanism includes a movable contact base 5 and a stationary contact assembly 7, and the movable contact base 5 is provided with a main contact assembly 6, an auxiliary contact assembly 9 and a transition resistor 51.
As shown in fig. 8 and 9, there are two sets of the main contact assemblies 6 disposed on both sides of the moving direction of the moving contact block 5, and the main contact assemblies 6 include: the current-conducting plate 61 is integrally formed on the moving contact base 5 and is provided with a first through hole; the two movable contact clamping pieces 62 are respectively arranged on the upper side and the lower side of the conductive plate 61 and are provided with second through holes which are arranged opposite to the first through holes, and the parts of the two movable contact clamping pieces 62 extending out of the conductive plate 61 are opposite to form a clamping space suitable for clamping a fixed contact; the pin assembly 63 comprises a pin and a spring sleeved on the pin, the pin penetrates through the first through hole and the second through hole to fixedly connect the two moving contact clamping pieces 62 with the current-conducting plate 61, and the spring abuts against the moving contact clamping pieces 62 to provide pressure for the moving contact clamping pieces 62 to move towards the current-conducting plate 61.
As shown in fig. 10 to 13, three static contact assemblies 7 are disposed on the second bracket 8, and have static contacts connected to or disconnected from the main contact assembly 6. The static contact assemblies comprise two first static contacts 71 and two second static contacts 72 which are sequentially arranged along the length direction of the second support 8, the first static contact 71 is provided with two first static contact plates which are arranged in parallel relatively, the second static contact 72 is a U-shaped static contact plate, when two main contact assemblies 6 which are arranged oppositely up and down are connected with the two first static contact plates, two transformer windings which are correspondingly connected with the two main contact assemblies 6 are in a parallel state, and when the two main contact assemblies 6 are connected with the second static contact 72, the second static contact 72 is a U-shaped static contact plate, so that the two transformer windings which are correspondingly connected with the two main contact assemblies are in a serial state, and the switching from high capacity to low capacity is realized; support shafts 73 in guide transition fit with the main contact assembly 6 are further arranged between two adjacent first fixed contacts 71 and between the first fixed contacts 71 and the second fixed contacts 72, and a distance between each support shaft 73 and each adjacent two fixed contacts is smaller than a width of the movable contact clamp 62. As shown in fig. 7, when the gear selection mechanism is in the high-capacity gear position, two groups of main contact assemblies 6 are respectively connected to the corresponding first fixed contacts 71, and when the gear selection mechanism moves from the right side in fig. 6 to the low-capacity gear position shown in fig. 7, one main contact assembly 6 is connected to the first fixed contact 71, and the other main contact assembly 6 is connected to the second fixed contact 72.
The utility model discloses an on-load tap-changer transfers and holds device, the drive mode that adopts electromagnetic drive mechanism is fast, is difficult for producing electric arc when the gear switches, has prolonged the life of product, in addition, location hold mechanism when transferring hold actuating mechanism and remove to gear action position, with transfer hold actuating mechanism or electromagnetic drive mechanism location connection to make to transfer hold actuating mechanism and keep at gear action position, make the gear switch accurate like this.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides an on-load tap-changer accent holds device which characterized in that: the method comprises the following steps:
the capacity-adjusting driving mechanism is movably arranged on the first support (1) and is in linkage connection with the gear selection mechanism, and the capacity-adjusting driving mechanism is provided with an initial position and a gear action position which is driven by external force and drives the gear selection mechanism to switch gears;
the electromagnetic driving mechanism (2) is connected with the capacity regulating driving mechanism and drives the capacity regulating driving mechanism to switch between the initial position and the gear action position;
and the positioning and holding mechanism is connected with the capacity adjusting driving mechanism or the electromagnetic driving mechanism in a positioning way when the capacity adjusting driving mechanism moves to the gear position action position, so that the capacity adjusting driving mechanism is held at the gear position action position.
2. The on-load tap changer capacitance regulating device of claim 1, wherein: the electromagnetic drive mechanism (2) comprises:
the first coil framework (21) and the second coil framework (22) are arranged along the same axis, a first coil and a second coil are respectively wound on the outer wall of the first coil framework and the second coil framework, and the first coil framework (21) and the second coil framework (22) are provided with hollow inner cavities;
the movable iron core (23) is movably arranged in the inner cavity, and a middle through hole is formed in the movable iron core (23);
the push rod (24) penetrates through the middle through hole and is in linkage arrangement with the movable iron core (23), and the end part of the push rod (24) extending out of the inner cavity is connected with the capacity regulating driving mechanism;
when the gears are switched, only one of the first coil and the second coil is in an electrified state, the first coil generates electromagnetic driving force for driving the movable iron core (23) to move towards one direction, and the second coil generates electromagnetic driving force for driving the movable iron core (23) to move towards the opposite direction.
3. The on-load tap changer capacitance regulating device of claim 2, wherein: the positioning and holding mechanism includes:
the two capacity-adjusting iron cores (3) are respectively arranged at two sides of the moving direction of the movable iron core (23), and two permanent magnets (31) are arranged at the middle parts of the two capacity-adjusting iron cores (3) towards one side of the movable iron core (23);
when the movable iron core (23) is at the gear action position, the movable iron core (23), the corresponding capacity-regulating iron core (3) and the permanent magnet (31) form a magnetic flux loop, so that the movable iron core (23) is kept at the gear action position.
4. The on-load tap changer capacitance regulating device of claim 2, wherein: the capacity-regulating driving mechanism comprises:
the fixed plate (4) is movably arranged on the back surface of the first bracket (1), and a movable contact seat (5) is arranged on the fixed plate (4);
the capacity-adjusting driving part (41) is arranged at least one end of the push rod (24), and the capacity-adjusting driving part (41) penetrates through a first strip-shaped hole (11) formed in the first support (1) from the front surface of the first support (1) and then is connected with the fixing plate (4) in a matching manner;
the biasing part (42) is sleeved on the push rod (24), one end of the biasing part is abutted against the push rod mounting frame, and the other end of the biasing part is arranged opposite to the capacity adjusting driving part (41).
5. The on-load tap changer capacitance regulating device of claim 4, wherein: the first support (1) is further provided with a travel switch (13) which is electrically connected with an external display to display a gear position, and the capacity adjusting driving piece (41) is provided with a travel positioning piece (43) which is matched with the travel switch (13) to act.
6. The on-load tap changer capacitance regulating device of claim 4, wherein: the capacity-regulating driving mechanism further comprises a limiting structure for limiting the moving position of the fixing plate (4), and the limiting structure comprises:
the second strip-shaped hole (12) is arranged on the first bracket (1) and is parallel to the first strip-shaped hole (11);
and one end of the positioning column (44) is connected with the fixing plate (4), and the other end of the positioning column extends into the second strip-shaped hole (12).
7. The on-load tap changer capacitance regulating device of claim 4, wherein: the gear selection mechanism includes:
the movable contact seats (5) are arranged on the fixed plate (4), and two groups of main contact assemblies (6) are respectively arranged on two sides of each movable contact seat (5) along the moving direction of the movable contact seat;
and the plurality of static contact assemblies (7) are arranged on the second bracket (8) and are provided with static contacts connected or disconnected with the main contact assembly (6).
8. The on-load tap changer capacitance regulating device of claim 7, wherein: the main contact assembly (6) comprises:
the conductive plate (61) is integrally formed on the moving contact seat (5), and a first through hole is formed in the conductive plate;
the two moving contact clamping pieces (62) are respectively arranged on the upper side and the lower side of the conductive plate (61) and are provided with second through holes which are arranged opposite to the first through holes, and the parts of the two moving contact clamping pieces (62) which extend out of the conductive plate (61) are opposite to form a clamping space which is suitable for clamping a fixed contact;
and the pin assembly (63) fixedly connects the two movable contact clamping pieces (62) and the conductive plate (61) after penetrating through the first through hole and the second through hole.
9. The on-load tap changer capacitance regulating device of claim 8, wherein: move contact seat (5) and crisscross two auxiliary contact subassembly (9) and two main contact subassembly (6) of being provided with along one side of its direction of movement, move contact seat (5) and keep away from one side of quiet contact subassembly (7) is equipped with transition resistance (51), transition resistance (51) pass through the wire respectively with auxiliary contact subassembly (9) with main contact subassembly (6) link to each other.
10. The on-load tap changer capacitance regulating device of claim 9, wherein: the static contact component comprises two first static contacts (71) and a second static contact (72) which are sequentially arranged along the length direction of the second support (8), the first static contacts (71) are provided with two first static contact plates which are arranged in parallel relatively, and the second static contacts (72) are U-shaped static contact plates;
and support shafts (73) in guide transition fit with the main contact assembly (6) are further arranged between every two adjacent first fixed contacts (71) and between the first fixed contacts (71) and the second fixed contacts (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921546550.8U CN210120052U (en) | 2019-09-17 | 2019-09-17 | On-load tap-changer capacity regulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921546550.8U CN210120052U (en) | 2019-09-17 | 2019-09-17 | On-load tap-changer capacity regulating device |
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| CN210120052U true CN210120052U (en) | 2020-02-28 |
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| CN201921546550.8U Expired - Fee Related CN210120052U (en) | 2019-09-17 | 2019-09-17 | On-load tap-changer capacity regulating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201531A (en) * | 2020-08-26 | 2021-01-08 | 广东中鹏电气有限公司 | On-load voltage regulating switch |
| CN112234841A (en) * | 2020-09-02 | 2021-01-15 | 中铁第一勘察设计院集团有限公司 | Two-section type power transformation and voltage regulation device for taking electricity from contact network |
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2019
- 2019-09-17 CN CN201921546550.8U patent/CN210120052U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201531A (en) * | 2020-08-26 | 2021-01-08 | 广东中鹏电气有限公司 | On-load voltage regulating switch |
| CN112201531B (en) * | 2020-08-26 | 2024-01-23 | 广东中鹏电气有限公司 | On-load voltage regulating switch |
| CN112234841A (en) * | 2020-09-02 | 2021-01-15 | 中铁第一勘察设计院集团有限公司 | Two-section type power transformation and voltage regulation device for taking electricity from contact network |
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