CN212411878U - Operation structure of dual-power transfer switch - Google Patents
Operation structure of dual-power transfer switch Download PDFInfo
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- CN212411878U CN212411878U CN202021804463.0U CN202021804463U CN212411878U CN 212411878 U CN212411878 U CN 212411878U CN 202021804463 U CN202021804463 U CN 202021804463U CN 212411878 U CN212411878 U CN 212411878U
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Abstract
The utility model discloses an operation structure of a dual-power transfer switch, which comprises a main shaft provided with a moving contact and three groups of static contacts, and further comprises a first transmission shaft, a first wheel disc, a second wheel disc and two energy storage mechanisms, wherein one end of the first transmission shaft is linked with the first wheel disc, and the other end is matched with an external driving piece; the second wheel disc is linked with one end of the main shaft, the first wheel disc and the second wheel disc are separately arranged, the two energy storage mechanisms are respectively arranged on two sides of the first wheel disc and the second wheel disc, and the first wheel disc is linked with the second wheel disc through the two energy storage mechanisms; the utility model discloses modularization installation, simple structure, stability, prevent maloperation.
Description
Technical Field
The utility model relates to a dual supply change over switch's operation structure.
Background
The dual-power transfer switch is usually provided with a common power supply and a standby power supply, and the power supply effect is realized by switching the common power supply and the standby power supply.
However, the operation structure of the existing dual-power transfer switch is generally complex in structure and comprises a main shaft provided with a moving contact and three groups of static contacts, and in actual operation, the moving contact is enabled to connect the two groups of static contacts through rotating the main shaft, so that the effect of two paths of power supplies is formed. However, in the existing operation structure, the external handle is directly linked with the main shaft to drive the main shaft to rotate, when misoperation occurs, electric arcs are easy to generate, and serious potential safety hazards exist in case of serious misoperation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a dual supply change over switch's operation structure.
The utility model discloses the technical scheme who solves its technical problem and adopt is: an operation structure of a dual-power transfer switch comprises a main shaft provided with a moving contact, three groups of fixed contacts, a first transmission shaft, a first wheel disc, a second wheel disc and two energy storage mechanisms, wherein one end of the first transmission shaft is linked with the first wheel disc, and the other end of the first transmission shaft is matched with an external driving piece; the second wheel disc is linked with one end of the main shaft, the first wheel disc and the second wheel disc are arranged in a separated mode, the two energy storage mechanisms are respectively arranged on two sides of the first wheel disc and the second wheel disc, and the first wheel disc is linked with the second wheel disc through the two energy storage mechanisms.
Adopt two rim plates separation backs, drive through two energy storage mechanism and form the linkage effect, when taking place the maloperation, first transmission shaft drives first rim plate earlier and rotates, after the certain angle of idle running, drives energy storage mechanism and carries out the energy storage, and at this moment, the second rim plate is not moved, if the maloperation appears in this moment discovery, can not take place any accident. When operating personnel confirm to be normal operation, then need further to rotate first transmission shaft to drive the rotation of second rim plate, realize the circuit switching or be located the double-brake position.
The energy storage mechanism is provided with a first wheel disc, a second wheel disc and an energy storage mechanism, wherein the first wheel disc is provided with two first waist-shaped holes, the second wheel disc is provided with two second waist-shaped holes, the energy storage mechanism is provided with a transmission rod, the top end of the transmission rod is provided with a transmission pin, and the transmission pin penetrates through the first waist-shaped holes and the second waist-shaped holes to realize linkage of the first wheel disc and the second wheel disc.
Adopt the setting in two waist type holes, under the normal condition, because first rim plate idle running drives the drive pin and moves to the opposite side realization counterbalance in first waist type hole from one side in first waist type hole, at this moment, energy storage mechanism reaches the dead point, continues to rotate, then can drive the motion of second rim plate to realize the action of moving contact, and energy storage mechanism releases the ability, then further improves holistic switching speed, prevents to take place to draw the arc.
Wherein, the length of the second waist-shaped hole is longer than that of the first waist-shaped hole.
The length of the second kidney-shaped hole is larger than that of the first kidney-shaped hole, so that the initial power is provided, when the energy storage mechanism is positioned at a dead point, if the first wheel disc does not provide subsequent force, the two conditions of maintaining the first wheel disc immovably or releasing energy of the energy storage mechanism to move in the opposite direction exist according to the action of force, and even the first wheel disc returns to the initial position, so that the subsequent force needs to be provided, and at the moment, the distance between the side walls of the two kidney-shaped holes is the distance needed for providing the force; in this case, the driving force is larger, and more force is required than the previous idling of the first wheel disc, so that the operator is forced to rotate, and the operator can seriously feel that the operator is in a misoperation state, and a rescue effect can be achieved.
The top end of the transmission rod is of a U-shaped structure, and the first wheel disc and the second wheel disc extend into the top end of the transmission rod.
The transfer line top adopts U style of calligraphy parcel to set up for holistic transmission effect is better, and moreover, inside two rim plates were located the U style of calligraphy, played a protection effect, for prior art, a rim plate corresponded two energy storage mechanism, and two rim plates corresponded four energy storage mechanism, had the atress uneven, and the installation is loaded down with trivial details, the transmission is unstable, and adopts this kind of structure, only needs two energy storage mechanism, simple structure, and the energy storage is stable, simple to operate.
The device comprises a transmission rod, a limiting pin and a reset piece, and is characterized by further comprising two fixing plates arranged in parallel, wherein the limiting pin is arranged between the two fixing plates, a sliding groove is formed in the transmission rod, the limiting pin slides on the sliding groove, the reset piece is sleeved on the transmission rod, and the other end of the reset piece is located on the motion track of the limiting pin.
The two fixing plates are arranged, so that the transmission rod forms an energy storage effect in the movement process, and the stability of the whole operation is ensured.
The first wheel disc is provided with a first fixing column, and the first fixing column is provided with a first fixing hole; and a second fixing column is arranged on the second wheel disc, a second fixing hole is arranged on the second fixing column, and the shape of the first fixing hole is different from that of the second fixing hole.
Adopt the setting of two fixed posts, improved the linkage effect between first rim plate and the first transmission shaft, because the high restriction of first rim plate itself, the event increases first fixed post for area of contact between the two is bigger, is difficult for taking place to drop at the driven in-process. The setting of second fixed column has also played the effect that increases area of contact equally, and here second fixed column has a effect in addition, passes the fixed plate, improves holistic fixed effect, guarantees main shaft pivoted concentricity. And the length of second fixed column is greater than the length of first fixed column, because the length of main shaft is injectd with the length of first transmission shaft, has further guaranteed whole driven stability.
The electric motor is linked with one end of the reduction gear box, and the first transmission shaft is linked with the other end of the reduction gear box.
Adopt electronic and manual integrative setting for whole switch operation variety can be electronic also can manually operation.
The reduction gear box is internally provided with at least two duplicate gears and a clutch mechanism, each duplicate gear comprises an upper tooth part and a lower tooth part, and the clutch mechanism separates the upper tooth part and the lower tooth part of one of the duplicate gears.
By adopting the arrangement of the clutch reduction gear box, when the motor breaks down or the inside of the gear box is blocked, the first transmission shaft can be separated from the motor through the clutch mechanism, and the manual operation is ensured to be not laborious.
Wherein, the main shaft is sleeved with a limit cam, and two sides of the limit cam are respectively provided with a corresponding microswitch.
By adopting the arrangement of the micro switch, when the main shaft rotates to a certain position, the micro switch controls the motor not to run, so that misoperation is prevented.
The limiting cam comprises a limiting cam and an elastic limiting bulge, wherein the elastic limiting bulge is positioned on the motion track of the limiting cam.
The setting of the elastic limit bulge ensures three-point positioning, namely a double-brake state, a common power state and a standby power state, so that the whole limit effect is ensured, and excessive rotation is prevented. Compared with the limiting arrangement in the prior art, the limiting structure is more stable.
Wherein, first transmission shaft, first rim plate, second rim plate and two energy storage mechanism are integrative setting of modularization.
Adopt the modularization setting for processing operation is more simple, and among the prior art, need assemble in whole casing one by one accessory, the structure of this application only need stretch into the main shaft to the second rim plate in, then is connected with the fixed plate through the bolt, can realize the fixed mounting effect. Moreover, the modularized arrangement is adopted, the assembly line operation processing speed is higher, and the production difficulty is reduced.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of another angle in embodiment 1 of the present invention;
fig. 3 is a partial exploded view of embodiment 1 of the present invention;
fig. 4 is a partial structural schematic view of embodiment 1 of the present invention;
FIG. 5 is an exploded view of FIG. 4;
fig. 6 is a schematic structural view of a double-split brake in embodiment 1 of the present invention;
fig. 7 is a schematic structural view of the energy storage mechanism located at a dead point in embodiment 1 of the present invention;
fig. 8 is a schematic structural view of the first driving pin abutting against the second kidney-shaped hole of the second wheel disc in embodiment 1 of the present invention;
fig. 9 is a schematic structural diagram of the embodiment 1 of the present invention during closing;
fig. 10 is a schematic structural view of the first transmission rod in embodiment 1 of the present invention;
fig. 11 is a schematic structural view of a limit cam in embodiment 1 of the present invention;
fig. 12 is a schematic structural view of a reduction gear box according to embodiment 1 of the present invention;
fig. 13 is a schematic view of a double-coupling tooth holding state in embodiment 1 of the present invention;
fig. 14 is a schematic view of a double-coupled teeth released state in embodiment 1 of the present invention.
Detailed Description
Example 1:
referring to fig. 1-14, an operating structure of a dual power transfer switch includes a housing 1, the housing 1 including a contact chamber 11 and an operating chamber 12.
The main shaft 2 of the movable contact 111 and three groups of fixed contacts 112 are arranged in the contact cavity 11, the three groups of fixed contacts 112 are respectively a common power supply fixed contact, a standby power supply fixed contact and an output fixed contact, the movable contact 111 rotates to enable the common power supply fixed contact to be communicated with the output fixed contact, and therefore conduction of a common power supply can be achieved, and the standby power supply fixed contact is not connected with the output fixed contact; when the moving contact 111 rotates to enable the static contact of the standby power supply to be communicated with the output static contact, the standby power supply can be conducted, and the static contact of the common power supply is not connected with the output static contact; when the common power source static contact and the standby power source static contact are not communicated with the output static contact, the double-switch state is obtained. The structures of the moving contact 111 and the fixed contact 112 are well known in the art, and therefore, the detailed description thereof is omitted. It should be noted that the main shaft 2 partially penetrates into the operation cavity 12, and the main shaft 2 is a square shaft, specifically a square.
Two fixed plates 3 are arranged in parallel, and in the vertical and operation cavity 12, a cavity is formed between the two fixed plates 3, and the first wheel disc 4, the second wheel disc 5 and the two energy storage mechanisms 6 are all located in the cavity. Further, here, a lateral fixing portion 31 is provided on the bottom of the fixing plate 3 facing the first transmission shaft 7, the lateral fixing portion 31 is attached to the bottom surface of the operation chamber 12, and the lateral fixing portion 31 is fixed to the operation chamber 12 by a bolt. It should be noted here that the fixing plate 3 near the contact cavity 11 is provided with an opening adapted to the second fixing post 52 on the second wheel disc 5, and the fixing plate 3 near the first transmission shaft 7 is provided with an opening adapted to the first transmission shaft 7.
Two fixed plates 3 are fixed through a plurality of bolts, two limit pins 32 are further arranged between the two fixed plates 3, and the two limit pins 32 are symmetrically arranged and correspond to the two transmission rods.
Be equipped with first rim plate portion 41 and first fixed column 42 on the first rim plate 4, be equipped with the first fixed orifices 421 with first transmission shaft 7 adaptation on the first fixed column 42, first fixed orifices 421 here run through to whole first rim plate 4 from first fixed column 42, first fixed orifices 421 are central point, it needs to notice that, the shape of first fixed orifices 421 is different with the shape of second fixed orifices, first fixed orifices 421 are not square setting here, but adopt the runway type setting, and main shaft 2 also can't stretch into to first fixed orifices 421 in, thereby the isolating construction between two rim plates has been guaranteed. The height of the first fixing column 42 is at least twice of the height of the first wheel disc part 41, so that the linkage effect between the first wheel disc 4 and the first transmission shaft 7 is ensured, the first fixing column 42 is increased, the contact area between the first wheel disc 4 and the first transmission shaft is larger, and the first fixing column is not easy to fall off in the driving process. The first wheel disk portion 41 is provided with two first kidney-shaped holes 411, and the two first kidney-shaped holes 411 are symmetrically arranged.
Be equipped with second rim plate portion 51 and second fixed column 52 on the second rim plate 5, be equipped with the second fixed orifices 521 with main shaft 2 adaptation on the second fixed column 52, second fixed orifices 521 runs through to whole second rim plate 5 from second fixed column 52 here, second fixed orifices 521 is central point, it needs to be noted that, the shape of first fixed orifices 421 is not the same with the shape of second fixed orifices 521, second fixed orifices 521 is square setting here, and first transmission shaft 7 also can't stretch into in the second fixed orifices 521, thereby the isolating construction between two rim plates has been guaranteed. The height of the second fixing column 52 is at least twice of the height of the second wheel disc part 51, so that the linkage effect between the second wheel disc 5 and the main shaft 2 is ensured, the second fixing column 52 is increased, the contact area between the second wheel disc 5 and the main shaft 2 is larger, and the second fixing column is not easy to fall off in the driving process. The second fixing posts 52 also have a function of penetrating through the fixing plate 3, so that the overall fixing effect is improved, and the rotating concentricity of the main shaft 2 is ensured. The second wheel disk part 51 is provided with two second kidney-shaped holes 511, and the two second kidney-shaped holes 511 are symmetrically arranged.
It should be noted here that the main shaft 2 and the first transmission shaft 7 are arranged concentrically, and the two are ensured to be on the same plane, so that the transmission is more stable. The main shaft 2 and the first transmission shaft 7 are arranged in a two-section mode, so that the production difficulty is reduced, the processing is difficult compared with the length of the main shaft 2 in the prior art, and the concentricity of the main shaft 2 is difficult to guarantee.
When the first wheel disc 4 is attached to the second wheel disc 5, only the first wheel disc is attached to the second wheel disc, linkage cannot be generated, and linkage can be realized only through the energy storage mechanism 6. After the first wheel disc 4 and the second wheel disc 5 are attached, the first wheel disc part 41 and the second wheel disc part 51 are arranged in the same size, that is, the size and the height are the same. The first kidney-shaped hole 411 and the second kidney-shaped hole 511 are correspondingly arranged, and the only difference is that the length of the second kidney-shaped hole 511 is greater than that of the first kidney-shaped hole 411, so that the energy storage mechanism 6 needs to move for a certain distance after being positioned at a dead point, and the distance is the length difference between the two kidney-shaped holes. Because two waist type holes are the arc hole, so specific length here replaces with the central angle on the second rim plate 5, and the corresponding length of the rim plate of different sizes is different, and the central angle of the length difference here is 3-8, and here preferred is 5. The length of the second kidney-shaped hole 511 is greater than that of the first kidney-shaped hole 411, firstly, in order to provide initial power, when the energy storage mechanism 6 is located at a dead point, if the first wheel disc 4 is not provided with subsequent force, the first wheel disc is maintained to be motionless or the energy storage mechanism 6 can release energy to move in the opposite direction according to the action of force, and even returns to the initial position, so that the subsequent force needs to be provided, and at the moment, the distance between the side walls of the two kidney-shaped holes, namely the force, the subsequent force and the restoring force of the energy storage mechanism 6 are provided, so that the second wheel disc 5 rotates rapidly, and the opening and closing rapid brake effect of the movable contact 111 is realized; in this case, the driving force is larger, and more force is required than in the case of the idle rotation of the first wheel 4, so that the operator can find out his/her own malfunction, and a saving effect can be obtained. Also here both the first 4 and the second 5 wheel disc rotate radially and do not move in the axial direction.
The energy storage mechanism 6 includes a first energy storage mechanism 61 and a second energy storage mechanism 62.
The first energy storing mechanism 61 includes a first transmission rod 611, the top end of the first transmission rod 611 is a U-shaped structure, that is, the top end of the first transmission rod 611 includes a first transverse portion 612, a first linkage portion 613 and a second linkage portion 614, and two ends of the first transverse portion 612 are respectively connected to the first linkage portion 613 and the second linkage portion 614. The other end of the first transmission rod 611 is an elongated first rod portion 615, and the first rod portion 615 is connected and fixed to the center of the first transverse portion 612. The U-shape is provided with a first transmission pin 616, the first transmission pin 616 passes through the first kidney-shaped hole 411 and the second kidney-shaped hole 511, and both ends of the first transmission pin 616 are respectively connected and fixed with the first linkage portion 613 and the second linkage portion 614, so that the first wheel disc 4 and the second wheel disc 5 are partially positioned inside the U-shape. The first linkage portion 613 and the second linkage portion 614 are arranged in an arc shape, so that the overall transmission is more stable. It should be noted here that a first guiding surface 6121 is disposed on a side of the first transverse portion 612 facing the U-shaped opening to prevent the two wheel discs from being jammed between the driving rod and the rotating wheel discs, and the first guiding surface 6121 is specifically a trapezoidal guiding surface. The first rod portion 615 is provided with a first sliding groove 617, the first sliding groove 617 is arranged in a closed manner, the first sliding groove 617 is sleeved on the corresponding limit pin 32, the first rod portion 615 is sleeved with a first resetting piece 618, the first resetting piece 618 is located between the limit pin 32 and the first transverse portion 612, and the first sliding groove 617 is driven to move through the movement of the first transmission rod 611, so that the first resetting piece 618 is extruded to form an energy storage effect. It should be noted that the first returning element 618 is a rigid spring, and during the assembling process, one end of the first returning element 618 does not abut against the first transverse portion 612, and the other end abuts against the limit pin 32, but is sleeved on the first rod portion 615, and in the normal state, the first returning element 618 is in the normal state, one end of the first returning element is connected to the first transverse portion 612, and the other end of the first returning element is not abutted against the limit pin 32. Adopt this kind of setting, prevent excessive extrusion, lead to first piece 618 that resets to be located the extrusion state for a long time, produce elastic fatigue, influence actual use, in addition in the assembling process, need not to extrude the spring operation, reduce the installation degree of difficulty.
The transfer line top adopts U style of calligraphy parcel to set up for holistic transmission effect is better, and moreover, inside two rim plates were located the U style of calligraphy, played protection and guide effect, for prior art, a rim plate corresponded two energy storage mechanism 6, and two rim plates corresponded four energy storage mechanism 6, had the atress inequality, and the transmission is unstable, and adopts this kind of structure, only needs two energy storage mechanism 6, simple structure, and the energy storage is stable, simple to operate.
The two energy stores 6 are identical in construction, but for better illustration of the construction between them, the two energy stores 6 are described separately below. The second energy storage mechanism 62 is provided with a second transmission rod 621, a second transmission pin 622 and a second reset piece 623, the second transmission rod 621 and the first transmission rod 611 have the same structure, the second transmission pin 622 and the first transmission pin 616 have the same fixed structure, and the second reset piece 623 and the first reset piece 618 have the same structure, so the description is omitted.
The motor 8 is connected fixedly with the fixing plate 3 towards one side of the first transmission shaft 7 through the reduction gear box 81, the output shaft of the motor 8 forms a linkage effect with the first transmission shaft 7 through the reduction gear box 81, the first transmission shaft 7 is driven to rotate through the motor 8, a manual and automatic integrated control effect is achieved, and the output shaft of the motor 8 and the first transmission shaft 7 are arranged in parallel.
Further, at least two duplicate gears 82 and a clutch mechanism are arranged in the reduction gear box 81, wherein one duplicate gear 82 comprises an upper tooth portion 821 and a lower tooth portion 822, the upper tooth portion 821 and the lower tooth portion 822 are coaxially arranged and radially meshed, so that the upper tooth portion 821 and the lower tooth portion 822 are in linkage. The clutch mechanism comprises a pull rod 83 and a third reset piece 84, the third reset piece 84 is sleeved on the pull rod 83, the lower tooth portion 822 is located on the motion track of the pull rod 83, one end of the pull rod 83 extends out of the reduction gear box 81, the lower tooth portion 822 is separated from the upper tooth portion 821 by pulling the pull rod 83, and at the moment, the motor 8 is not linked with the first transmission shaft 7. When the pulling force is removed, the third reset member 84 is reset, the pull rod 83 is restored to the initial position, the lower tooth portion 822 also has a self-reset effect, and when the pulling force is removed, the lower tooth portion 822 is reset to be re-meshed with the upper tooth portion 821 to form a linkage effect. Further, in order to improve the clutch effect, a locking hole 831 is provided in the pull rod 83, and the locking member passes through the locking hole 831 to achieve the locking effect after the disengagement. By adopting the arrangement of the clutch reduction gearbox 81, when the motor 8 breaks down or the inside of the gearbox is blocked, the first transmission shaft 7 can be separated from the motor 8 through the clutch mechanism, and the manual operation is ensured to be not laborious.
Two micro switches 33 are arranged on the fixing plate 3 facing the main shaft 2, and the micro switches 33 are used for controlling the rotation of the motor 8. Be equipped with the spacing arch of elasticity 121 on the below of operation chamber 12, the spacing arch of elasticity 121 is specifically for being equipped with fixed chamber 122 in the operation chamber 12, is equipped with the fourth piece 123 that resets in the fixed chamber 122 for the spacing arch of elasticity 121 possesses the elasticity effect, and the spacing arch of elasticity 121 is the triangle-shaped setting here.
The part of the main shaft 2 extending out of the operation cavity 12 is provided with a limit cam 9, the top end of the limit cam 9 is in a triangular arrangement, and the two micro switches 33 are positioned on the motion track of the top end of the limit cam 9, so that the micro switches 33 act to stop the work of the motor 8. The lower end of the limiting cam 9 is provided with a first clamping groove 91, a second clamping groove 92 and a third clamping groove 93, the first clamping groove 91 is positioned between the second clamping groove 92 and the third clamping groove 93, and when the elastic limiting protrusion 121 extends into the position matched with the first clamping groove 91, the change-over switch is in a double-brake state; when the elastic limiting protrusion 121 extends into the second slot 92 to be matched with the second slot, the change-over switch is in a common power supply state; when the elastic limiting protrusion 121 extends into the third slot 93 to be matched with the third slot, the change-over switch is in a standby power state. The setting of the elastic limiting bulge 121 guarantees three-point positioning, namely a double-brake state and a standby power supply state, so that the whole limiting effect is guaranteed, and excessive rotation is prevented.
The specific working principle is, as shown in fig. 6, a schematic structural diagram in a double-brake state, where the drawing is a perspective view for better showing the moving structure. At this time, the first transmission rod 611 and the second transmission rod 621 are located at the lowest end, and at this time, the first reset piece 618 and the second reset piece 623 are both in a normal state and only sleeved on the transmission rods.
When external drive spare (being the handle) and first transmission shaft 7 cooperation rotated, when rotating towards the right side promptly, drive first rim plate 4 and rotate, the first waist type hole 411 in the left side on first rim plate 4 drives first transmission pin 616 and moves this moment, when first rim plate 4 rotates the dead point of first piece 618 that resets, as shown in fig. 7, at this moment, first transmission pin 616 does not move to second waist type hole 511's side wall, this state (first rim plate 4 idle running, second rim plate 5 does not do any action), if operating personnel finds oneself and takes place the maloperation, can cancel the operation, and can not drive main shaft 2 and move. Continue to rotate the handle, make first transmission pin 616 continue to move, when making and second kidney type hole 511 on the second rim plate 5 offset, as shown in fig. 8, this moment because the restoring force of lasting power and first piece 618 that resets, make first transmission pin 616 rapid motion, drive second rim plate 5 and rotate, thereby realize the effect that main shaft 2 drove moving contact 111 motion, rotate and end, because elasticity spacing arch 121 stretches into to cooperate with second draw-in groove 92, restrict main shaft 2 and excessively rotate, limit cam 9 top offsets with corresponding micro-gap switch 33, close motor 8 and move, first transmission shaft 7 also can't continue to rotate this moment, realize the effect of double locking. The stopped first driving pin 616 is located at the center of the first kidney-shaped hole 411 and does not abut against the two sides of the first kidney-shaped hole 411, so that the clutch effect is also achieved during the opening operation, and the misoperation is prevented, namely as shown in fig. 9. It should be noted that, when the first driving pin 616 continues to move to abut against the second kidney-shaped hole 511 on the second wheel disc 5, the second driving pin 622 on the other side moves in the same direction to rotate, and the moving track is consistent with the length difference between the two kidney-shaped holes, so that the second reset member 623 is not affected to deform.
When the external driving member (i.e. the handle) moves in the opposite direction, because the first wheel disc 4 rotates, the first wheel disc 4 idles, so that when the side wall of the first kidney-shaped hole 411 offsets with the first transmission pin 616, the first transmission pin 616 is driven to rotate, at this time, the first reset piece 618 is driven to continue storing energy, when the dead point of the first reset piece 618 is reached, the opposite direction rotation is continued, so that the first transmission pin 616 offsets with the second kidney-shaped hole 511 to drive the second wheel disc to rotate, at this time, because of the continuous force and the restoring force of the first reset piece 618, the first transmission pin 616 moves rapidly, and the second wheel disc 5 is driven to rotate, so that the double-brake state is realized.
And continuing to move in the opposite direction, at this time, the first wheel disc 4 rotates, the first kidney-shaped hole 411 on the right side moves, and the second transmission pin 622 is driven to rotate, so that the second reset piece 623 stores energy, and when the stored energy of the second reset piece 623 reaches a dead point, the second transmission pin 622 continues to rotate, so that the second kidney-shaped hole 511 is driven by the second transmission pin 622 to move, and therefore the movable contact 111 is connected with the fixed contact 112. Otherwise, the movement is consistent with the movement toward the dual-brake state, so the description is omitted.
Adopt this kind of structure, at power state commonly used, stand-by power supply state and two switching states, under the three state, all be equipped with the stroke of idle running, first rim plate 4 idle running promptly can not drive the rotation of second rim plate 5, has predetermine the stroke of preventing maloperation for operating personnel to whole operation's stability has been guaranteed. And the whole operation structure, the part is few, adopt the modularization setting, it is more convenient to assemble.
Claims (10)
1. The utility model provides a dual supply change over switch's operation structure, is including the main shaft and the three static contacts of group that are equipped with the moving contact, its characterized in that: the energy storage device further comprises a first transmission shaft, a first wheel disc, a second wheel disc and two energy storage mechanisms, wherein one end of the first transmission shaft is linked with the first wheel disc, and the other end of the first transmission shaft is matched with an external driving piece; the second wheel disc is linked with one end of the main shaft, the first wheel disc and the second wheel disc are arranged in a separated mode, the two energy storage mechanisms are respectively arranged on two sides of the first wheel disc and the second wheel disc, and the first wheel disc is linked with the second wheel disc through the two energy storage mechanisms.
2. The operating structure of a dual power transfer switch of claim 1, wherein: two first waist-shaped holes are formed in the first wheel disc, two second waist-shaped holes are formed in the second wheel disc, a transmission rod is arranged on the energy storage mechanism, a transmission pin is arranged at the top end of the transmission rod, and the transmission pin penetrates through the first waist-shaped holes and the second waist-shaped holes to achieve linkage of the first wheel disc and the second wheel disc.
3. The operating structure of a dual power transfer switch according to claim 2, wherein: the length of the second kidney-shaped hole is larger than that of the first kidney-shaped hole.
4. The operating structure of a dual power transfer switch according to claim 2, wherein: the top end of the transmission rod is of a U-shaped structure, and the first wheel disc and the second wheel disc extend into the top end of the transmission rod.
5. The operating structure of a dual power transfer switch of claim 4, wherein: the device is characterized by further comprising two fixing plates arranged in parallel, a limiting pin is arranged between the two fixing plates, a sliding groove is formed in the transmission rod, the limiting pin slides on the sliding groove, a reset piece is sleeved on the transmission rod, and the other end of the reset piece is located on the motion track of the limiting pin.
6. The operating structure of a dual power transfer switch of claim 1, wherein: a first fixing column is arranged on the first wheel disc, and a first fixing hole is formed in the first fixing column; and a second fixing column is arranged on the second wheel disc, a second fixing hole is arranged on the second fixing column, and the shape of the first fixing hole is different from that of the second fixing hole.
7. The operating structure of a dual power transfer switch of claim 1, wherein: the motor is linked with one end of the reduction gear box, and the first transmission shaft is linked with the other end of the reduction gear box.
8. The operating structure of a dual power transfer switch of claim 7, wherein: at least two duplicate gears and a clutch mechanism are arranged in the reduction gear box, each duplicate gear comprises an upper tooth part and a lower tooth part, and the clutch mechanism separates the upper tooth part and the lower tooth part of one of the duplicate gears.
9. The operating structure of a dual power transfer switch of claim 1, wherein: the main shaft is sleeved with a limiting cam, and two sides of the limiting cam are respectively provided with a corresponding microswitch.
10. The operating structure of a dual power transfer switch of claim 1, wherein: first transmission shaft, first rim plate, second rim plate and two energy storage mechanism are integrative setting of modularization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021804463.0U CN212411878U (en) | 2020-08-25 | 2020-08-25 | Operation structure of dual-power transfer switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021804463.0U CN212411878U (en) | 2020-08-25 | 2020-08-25 | Operation structure of dual-power transfer switch |
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| CN212411878U true CN212411878U (en) | 2021-01-26 |
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| CN202021804463.0U Active CN212411878U (en) | 2020-08-25 | 2020-08-25 | Operation structure of dual-power transfer switch |
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