CN202977216U - Installation structure of automatic transfer switch main shaft - Google Patents
Installation structure of automatic transfer switch main shaft Download PDFInfo
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- CN202977216U CN202977216U CN 201220737502 CN201220737502U CN202977216U CN 202977216 U CN202977216 U CN 202977216U CN 201220737502 CN201220737502 CN 201220737502 CN 201220737502 U CN201220737502 U CN 201220737502U CN 202977216 U CN202977216 U CN 202977216U
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Abstract
The utility model relate to an installation structure of an automatic transfer switch main shaft and belongs o the technical field of low-voltage electrical appliances. The installation structure includes a frame, a power source rotation shaft and spacing shaft sleeves, wherein the frame includes a pair of side plates arranged in parallel; each side plate is provided with a strip-shaped groove with a one-way opening; the opening end of the strip-shaped groove faces the periphery of the side plate; the strip-shaped grooves on the pair of side plates are symmetrical with respect to each other; a sealing end of any one strip-shaped groove is provided with a roundly-cut hole of which the diameter is larger than the width of the strip-shaped groove; the roundly-cut hole is provided with a flatly-cut surface; both ends of the power source rotation shaft can penetrate the strip-shaped grooves; the spacing shaft sleeves are sleeved on two ends of the power source rotation shaft; each spacing shaft sleeve consists of a column body and a column cap; the column cap is provided with a cut surface; the column cap is fitly attached to the roundly-cut hole; and the cut surface of the column cap is fitly attached to the flatly-cut surface of the roundly-cut hole. With the installation structure of the automatic transfer switch main shaft adopted, installation requirements of the main shaft can be satisfied, and production process can be facilitated, and positioning accuracy and large bearing force can be ensured.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, is specifically related to a kind of mounting structure of automatic change-over main shaft
Background technology
Automatic transfer switching electric appliance (ATSE) is mainly used in the switching of two-way power supply, to guarantee the continuous power supply of important load.Along with the progressively raising that the progress of society and people require power quality, automatic transfer switching electric appliance (ATSE) is widely applied in all fields, some important electricity consumption places particularly, as: airport, hospital, harbour etc.
Automatic transfer switching electric appliance (ATSE) comprises that mainly one is used for providing the operating mechanism of dynamic and static contactor minute actuating force, and two covers that driven by operating mechanism hold the Switch main body of dynamic and static contact.Simultaneously, the speed of dividing in order to accelerate dynamic and static contactor, satisfy electric requirement, usually be provided with the spring energy parts on operating mechanism, it is used for when dynamic and static contact does not move, drive storage power by outside manpower or motor-operating mechanism, and discharged in dynamic and static contactor minute process, close component velocity with raising.
On the general framework that is arranged on switch that rotates of the main shaft that is connected with moving contact on automatic change-over, main shaft of the prior art is installed by the mode and the spindle mounting hole on framework that axially wear, but because the parts that connect on main shaft are more, therefore there are many restrictions in this mounting structure for assembling process, is unfavorable for manufacturing.Again because main shaft is stressed larger, and positioning accuracy is had high requirement, therefore above-mentioned traditional axially wearing installed and had improved needs
Summary of the invention
The purpose of this utility model is the mounting structure that a kind of automatic change-over main shaft will be provided, and it can satisfy the needs that main shaft is installed, and is conducive to the production process manufacturing, and can guarantee positioning accuracy and the larger power of carrying.
The purpose of this utility model reaches like this, and a kind of mounting structure of automatic change-over main shaft is characterized in that: comprise framework, power supply rotating shaft and limit shaft sleeve, described framework comprises the side plate that pair of parallel arranges; Each side plate is provided with the bar-shaped trough of unidirectional opening, and the openend of bar-shaped trough is peripheral towards side plate, and the bar-shaped trough on pair of side plates claims, the blind end of arbitrary bar-shaped trough is provided with a diameter greater than the circle of contact hole of bar-shaped trough width, and circle of contact hole is provided with a tangent plane; Described bar-shaped trough can be passed through in power supply rotating shaft two ends, and limit shaft sleeve is enclosed within power supply rotating shaft two ends, and limit shaft sleeve is comprised of cylinder and cap, is provided with tangent plane on described cap, fits in this cap and circle of contact hole, the section applying in tangent plane and circle of contact hole.
In a specific embodiment of the present utility model, described bar-shaped trough is vertical the setting, and the corresponding circle of contact hole on the pair of side plates of framework is symmetrical.
In another specific embodiment of the present utility model, described framework also comprises cover plate, and cover plate both sides are provided with the first crimp, is positioned at bar-shaped trough both sides on side plate and is provided with the second crimp, and the first crimp and the second crimp are fastening.
The technical scheme that the utility model provides, by cap and circle of contact hole applying, fit in the section in tangent plane and circle of contact hole, make the limit shaft sleeve that limits the power supply main shaft power supply main shaft can be rotated reliably and be arranged between pair of side plates, and then switching mechanism rotation reliably is arranged on pair of side plates.Owing to having added limit shaft sleeve, can significantly enlarge the contact-making surface between power supply main shaft and limit shaft sleeve in said structure, be conducive to the stabilized power supply main shaft.
Description of drawings
Fig. 1 operating mechanism stereogram.
Fig. 2 operating mechanism partial exploded view one.
Fig. 3 operating mechanism partial exploded view two.
The switching mechanism of Fig. 4 operating mechanism drives the moving contact schematic diagram.
Fig. 5 limit shaft sleeve schematic diagram.
Fig. 6 limit assembly work schematic diagram one.
Fig. 7 limit assembly work schematic diagram two.
Fig. 8 limit assembly work schematic diagram three.
The another kind of limit assembly schematic diagram of Fig. 9.
Figure 10 operating mechanism working state figure one.
Figure 11 operating mechanism working state figure two.
Figure 12 operating mechanism working state figure three.
Embodiment
The following examples are specifically related to the operating mechanism of automatic change-over in switching device (ATSE); if but other switching device has all operations were mechanism identical with following A TSE or part operation mechanism; the structure of expressing with the invention embodiment is identical or approximate; has corresponding technique effect; do not exceed the invention to the contribution of prior art, belong to equally the protection range of the invention.
Automatic change-over in this programme (ATSE) comprises an integrated operating mechanism, and it is installed on Switch main body, is specially on the body of automatic change-over.Body interior is provided with dynamic and static contact, and dynamic and static contact is realized closing minute circuit.The described dynamic and static contact of operating mechanism driving is completed and is closed a minute action.
As Fig. 1,2, operating mechanism comprises framework 1, switching mechanism 2, gear driven mechanism 3.Switching mechanism 2 and gear driven mechanism 3 are arranged on framework 1.Outside motor-operating mechanism or manpower rotate by the described gear driven mechanism 3 of handle drives, and described gear driven mechanism 3 is rotated rear drive switching mechanisms 2 actions, and the switching mechanism 2 dynamic and static contacts of drive are completed and closed, minute action.
Referring to Fig. 1,2, framework 1 comprises the two symmetrical side plates 11 that be arranged in parallel, be positioned at the cover plate 12 of side plate 11 upper and lowers, cover plate takes the shape of the letter U and to lopsidedness, satisfied the need of work of inner energy storage device, side plate 11 and cover plate 12 cooperation places are provided with crimp, and screw fits tightly both by the crimp on side plate 11 and cover plate 12, form a chamber, rectangle side.Be fixed with the side cover 13 of two symmetries in the outside of pair of side plates 11, form a cavity volume therebetween after side cover 13 is fixing with side plate 11.
Referring to Fig. 2, side plate 11 is provided with bar-shaped trough 111, and bar-shaped trough 111 is unidirectional open slot, and its openend is towards cover plate 12, and blind end is positioned at the middle part of side plate 11 above-below directions.Bar-shaped trough 111 is altogether four, and every block of side plate 11 is provided with back-to-back two, and the bar-shaped trough 111 on biside plate 11 is symmetrical.The blind end of each bar-shaped trough 111 is provided with a diameter greater than the circle of contact hole 112 of bar-shaped trough 111 width.Circle of contact hole 112 is intersected by a circle with without the straight line of this round heart and is formed, thereby forms a section 1121 on circle of contact hole 112.Preferably, described bar-shaped trough 111 is vertical the setting, corresponding circle of contact hole 112 symmetries on the pair of side plates 11 of framework 1.At this moment, be convenient to the installation of switching mechanism 2.Preferred, cover plate 12 both sides are provided with the first crimp 122, and being positioned at bar-shaped trough 111 both sides on side plate 11, to be provided with the second crimp 113, the first crimps 122 fastening with the second crimp 113 on pair of side plates 11, can prevent the distortion of bar-shaped trough 111.
Comprise main shaft 21, lever assembly 22, spring assembly 23, actuator 24, gear assembly 25 and limit assembly 26 referring to Fig. 2,3,4 switching mechanisms 2.Main shaft 21 rotates and is arranged on the biside plate 11 of framework 1.Lever assembly 22 and gear assembly 25 are set on main shaft 21 and can relatively rotate.Spring assembly 23 1 ends connect lever assembly 22, and the other end is conflicted at the cover plate 12 of framework 1.Gear assembly 25 drives and rotates lever assembly 22 actions that are arranged on main shaft 21, and lever assembly 22 drives actuator 24 actions that are fixedly installed on main shaft 21.Switching mechanism 2 is two covers, and the two back-to-back settings of cover switching mechanism 2 are with the corresponding two dynamic and static contact systems of cover.
Be fixedly installed the swing arm corresponding with dynamic and static contact system 211 on main shaft 21, swing arm 211 articulated linkage 200, the moving contact 300 in connecting rod 200 hinge contact head systems.In four phase automatic change-overs, drive four pieces of swing arms 211 by same main shaft 21, then drive four pieces of connecting rods 200, drive at last four phase moving contacts 300 and synchronously realize the on/off switch action.If the three-phase automatic change-over, same main shaft 21 drives three pieces of swing arms 211, then drives three pieces of connecting rods 200, drives at last three-phase moving contact 300 and synchronously realizes the on/off switch action.Main shaft 21 is to be driven by the actuator 24 that sets firmly thereon.Preferred described actuator 24 replaces one piece of swing arm 211 to be connected with corresponding one piece of connecting rod 200 by change of shape, and namely actuator 24 is adjusted into integrated parts with corresponding one piece of swing arm 211.Equally, actuator 24 drives main shaft 21 and drives other three pieces of swing arms 211, and then drives other three-phase moving contacts 300 by three pieces of connecting rods 200 of correspondence.If the three-phase automatic change-over, actuator 24 drives main shaft 21 and drives other two pieces of swing arms 211, and then drives other two-phase moving contacts 300 by two pieces of connecting rods 200 of correspondence.
Lever assembly 22 comprises mounting rod 221, the first drive rod 222, brace 223 and the second drive rod 224.The first drive rod 222 is connected to an end of brace 223, and brace 223 is arranged on main shaft 21, and brace 223 can relatively rotate with main shaft 21, and brace 223 other ends connect the second drive rods 224.Mounting rod 221 1 ends are hinged on brace 223, and mounting rod 221 other ends insert spring assembly 23, and mounting rod 221 is provided with the resistance surface of conflict spring assembly 23.Mounting rod 221 1 ends can be hinged on brace 223 by bearing pin, preferably can be hinged on brace 223 by the first drive rod 222, to save a bearing pin.What of the quantity of brace 223 do not affect the feasibility of scheme itself, and the quantity multipotency is shared spring assembly 23 and acted on active force on brace 223.Due to the function of brace 223, make the first drive rod 222 to do equidistant the rotation around main shaft 21.The first drive rod 222, the second drive rod 224 are connected with brace 223, are preferably to be fixedly connected with.
Actuator 24 is a sheet part, and actuator 24 is fixed on main shaft 21, and this kind fixed relationship makes actuator 24 synchronize rotation with main shaft 21.Actuator 24 1 ends connect an end of connecting rod 200, and connecting rod 200 other ends connect moving contact 300.But also 24 drive main shafts 21 of actuator certainly, main shaft 21 drives swing arms 211, drives moving contact 300 by connecting rod 200.Actuator 24 other ends offer the first arc groove 241, the first arc groove 241 is used for by the second drive rod 224 and coordinates with the rotary motion trace of the second drive rod 224, that is, the second drive rod 224 probes in the first arc groove 241, and coordinates with the first arc groove 241 axial troughs.The contravention that balances or cancel each other that is specially the first arc groove 241 ends coordinates with the second drive rod 224.When this kind structural relation makes brace 223 drive the second drive rod 224 rotation, after conflicting end, second drive rod 224 contact the first arc grooves 241 1 can drive actuator 24 around main shaft 21 center rotatings, and then drivening rod 200 motions, finally drive moving contact 300 and realize closing a minute action.
The mounting structure of switching mechanism 2 is: the two ends of main shaft 21 in switching mechanism 2 are insinuated into 112 inside, circle of contact hole along a pair of bar-shaped trough 111 on pair of side plates 11, gear assembly 25 is installed to the two ends of main shaft 21 from the side plate periphery again, the limit shaft sleeve 253 on gear assembly 25 closely engages with circle of contact hole 112.Thereby make main shaft 21 up and down, not seesaw.Certainly, the existence of limit shaft sleeve 253 not necessarily, does not add limit shaft sleeve 253 for the installation of driven gear 251 and gear base plate 252, and driven gear 251 directly rotates and is arranged on main shaft 21.
As Fig. 2,6,7,8,9, limit assembly 26 is interpreted as a cover additional structure, and it makes switching mechanism 2 switching mechanism 2 when realizing that changing rotation does itself be in stable state.Concrete, moving contact 300 is driven from gate-dividing state in switching mechanism 2 and cross the Cheng Qian to "on" position, limit assembly 26 acts on actuator 24 outer rims, thereby the second drive rod 224 is in the first interior moving process of arc groove 241, limit assembly 26 stabilized driving parts 24 are in initial condition, thereby guarantee that main shaft 21 is stable at initial position, finally keep moving contact 300 to be in gate-dividing state.Be to lock moving contact 300 by the motion that limits actuator 24 in above-mentioned process, yet actuator 24 is fixed relationships with main shaft 21, the rotation that actuator 24 is synchronizeed with main shaft 21.If by the rotation of locking main shaft 21, also can lock the action of moving contact 300.For example, set firmly the stopper (not marking on figure) that coordinates with limit assembly 26 on main shaft 21, limit assembly 26 locking stoppers, concrete, limit assembly 26 is conflicted with the fastener of described stopper, also can play identical function.Limit assembly 26 coordinates with the restriction of actuator 24 and can realize by following arbitrary scheme.
The first scheme, described limit assembly 26 is made of a locating part 261 and a torsion spring 262, and the centre of gyration of described torsion spring 262 is located between side plate 11 by an axle, for example, is provided with an axle between pair of side plates 11, and the centre of gyration of torsion spring 262 is enclosed within on this axle.Locating part 261 is a sheet material, and locating part 261 hub settings are between pair of side plates 11.Preferably, locating part 261 and the same centre of gyration of torsion spring 262, namely locating part 261 and torsion spring 262 hub settings are on same hub setting axle 100.Be installed with one on locating part 261 and hang pin 2611, be used for conflicting with an abutment end of torsion spring 262, certainly the above-mentioned abutment end of torsion spring 262 also can directly be conflicted on spacing 261 by the mode of bending in another kind of distressed structure, and another abutment end of torsion spring 262 is conflicted on the fixed part on side plate 11.For automatic change-over, owing to there being a pair of limit assembly 26 corresponding with the switching mechanism 2 of a pair of back-to-back setting, and the centre of gyration of locating part 261 and torsion spring 262, also can be described as hub setting is centered close between two cover switching mechanisms 2, at this moment, another abutment end of torsion spring 262 can be conflicted on extension pin 2611 on the locating part 261 of another set of switching mechanism 2.Hanging pin 2611 conflicts with the ladder cambered surface 243 on described actuator 24.The pushing face 2612 of locating part 261 coordinates with the second drive rod 224 pushings.The pushing cooperation refers to, when the second drive rod 224 turns to assigned address, namely the second drive rod 224 turns in described the first arc groove 241 in the process of a conflict end, at first it contact with pushing face 2612, then, to push again face 2612 and release, thereby the extension pin 2611 of locating part 261 will be pushed away actuator 24.In the whole course of work, the pushing face 2612 when the second drive rod 224 pushing locating parts 261 of a cover switching mechanism 2 breaks away from actuators 24 thereby hang pin 2611 due to a pair of switching mechanism 2 of back-to-back setting, and actuator 24 is rotatable; In this process, the actuator 24 of another set of switching mechanism 2 is in stable state, and namely its extension pin 2611 is in stable state equally.As from the foregoing, hang the rotation that pin 2611 can stop actuator 24, release actuator 24 until the second drive rod 224 will be hung pin 2611 by locating part 261.Thereby guarantee that actuator 24 is in initial position in the spacing process of limit assembly 26, namely do not rotate, thereby keep moving contact 300 to be in the state that separates with fixed contact 400.Prevent in brace 223 swing process, actuator 24 self rotates and then the situation of moving contact 300 close fixed contacts 400 occurs.
In alternative plan, specifically see Fig. 9, in this scheme, have equally the parts of top embodiment, difference is: the centre of gyration of locating part 261 and torsion spring 262 is positioned at the top of actuator 24.Accordingly, the shape of locating part 261 adjusts, to coordinate the movement locus of actuator 24 and the second drive rod 224.
In addition in above-mentioned scheme, be installed in stopper on main shaft 21 in conjunction with what the front was talked about, concrete, not-go end position part 261 interacts with actuator 24 and locks main shaft 21, and coordinate by the fastener on stopper in the scheme of stopping means 26, the extension pin 2611 of locating part 261 coordinates with fastener, and described fastener has the structure identical with above-mentioned ladder cambered surface 243.Concrete engagement process is identical with alternative plan with above-mentioned the first scheme, no longer describes.
The below is with regard to the closing keeping device of switching device, and the closing keeping device that is specially automatic change-over is described in detail.
Continuation is referring to Fig. 6,7,8, and swing arm 211 is fixedly installed with main shaft 21, and namely swing arm 211 is synchronizeed rotation with main shaft 21.One end of swing arm 211 1 end articulated linkage 200, and the connecting rod 200 hinged moving contacts 300 of the other end are specially the moving contact rack 302 of moving contact 300.Also comprise the acting arm 301 that swings of moving contact rack 302 relatively on moving contact 300,302 of acting arm 301 and moving contact racks are provided with the touch spring (not shown).Moving contact 300 rotates around it axle and rotates.The annexation of above-mentioned parts, make the fixed range between the center of rotation of the center of rotation of swing arm 211, connecting rod 200, moving contact 300 and moving contact 300 and main shaft 21, form a four-bar linkage structure, in swing arm 211 rotates counterclockwise process, it promotes connecting rod 200 motions, and promotes moving contact 300 to fixed contact 400 swings.swing arm 211 is with to be arranged in swing arm 211 outside and be fixed on the process that the gear shaft 242 on side plate 11 collides and stops operating, the first pin joint O2 between swing arm 211 and connecting rod 200 is biased in a side of above-mentioned line through center of rotation O1 and the connecting rod 200 of main shaft 21 after the line of the second pin joint O3 on moving contact rack 302, and form one with the center of rotation O1 of main shaft 21 and the obtuse angle of the formation of the line between the line between the first pin joint O2 and the first pin joint O2 and the second pin joint O3, the fixed point at this obtuse angle is the first pin joint O2, after forming the obtuse angle, the touch spring compression.In forming above-mentioned obtuse angle process, need to be through a balance point, namely the first pin joint O2 between swing arm 211 and connecting rod 200 is positioned at the center of rotation O1 of main shaft 21 and connecting rod 200 on the line of the second pin joint O3 on moving contact rack 302.On this balance point, distance between the center of rotation O1 of the second pin joint O3 and main shaft 21 farthest, at this moment, because the fixed contact 400 that coordinates with described moving contact 300 is installed on the automatic switch body, the touch spring of moving contact 300 inside is subjected to fixed contact 400 by the extruding of acting arm 301, and the touch spring compression is maximum.Through this balance point, just form above-mentioned obtuse angle between swing arm 211 and connecting rod 200.After forming the obtuse angle, the touch spring compression of moving contact 300 inside is alleviated.In practice, be advisable at 172 ° to 175 ° in described obtuse angle.Due to the existence at this obtuse angle, if without applied external force, above-mentioned obtuse angle state is maintained in said process, and namely the "on" position of dynamic and static contact is kept.
As aforementioned, drive one piece of connecting rod 200 at actuator 24, one piece of connecting rod 200 drives a phase moving contact 300, actuator 24 driving main shaft 21, main shaft 21 drives 200, three pieces of connecting rods of 211, three pieces of swing arms of other three pieces of swing arms, 211 three pieces of connecting rods of driving 200 and drives in the situation of moving contacts 300, the situation that actuator 24 drivening rods 200 are arranged, and then drive moving contact 300 remains on above-mentioned "on" position.Thereby, fixed range between the center of rotation of above-mentioned swing arm 211, connecting rod 200, moving contact 300 and moving contact 300 and the center of rotation of main shaft 21, the four-bar linkage structure that forms, be changed to the fixed range between the center of rotation of the center of rotation of actuator 24, connecting rod 200, moving contact 300 and moving contact 300 and main shaft 21, formed four-bar linkage structure.Certainly because actuator 24 is different with the shape of swing arm 211, the position of the gear shaft 242 of corresponding actuator 24 is different.As aforementioned, actuator 24 can replace one piece of swing arm 221, i.e. parts of actuator 24 and one piece of swing arm 211 being integrally formed, and " " font namely has two connecting levers to ㄑ to be specially one.Corresponding gear shaft 242 can be set as and coordinate arbitrary connecting lever, can realize its barrier effect.As Fig. 8, be two positions up and down of having illustrated gear shaft 242 to coordinate actuator 24.
As Fig. 1,2, described gear driven mechanism 3 comprises a rotating shaft 31, and rotating shaft 31 connects described pair of side plates 11 and can realize relatively rotating, in rotating shaft 31 and be positioned at biside plate 11 outsides and be provided with a pair of driving gear 32.Driven gear 251 in gear assemblies 25 in described driving gear 32 and above-mentioned two cover switching mechanisms 2 meshes simultaneously, this kind engagement is omnidistance engagement, namely in the course of action of operating mechanism, arbitrary driving gear 32 meshes with two driven gears 251 that are mated all the time.Described driving gear 32 and driven gear 251 be not requirement be full-depth tooth; as long as in its work slewing area separately; both can mesh; namely reached the specification requirement of this programme; belong to identical technological means and realize identical technique effect; solve identical technical problem, thereby belong to the protection range of equivalence.
Above-mentioned whole process engagement makes driving gear 32 be in engagement with driven gear 251 all the time, thereby the external impetus of operating mechanism has increased the reliability of transmission all the time by driving gear 32 and driven gear 251 interlocks.
In order to make operating mechanism itself to match with the power mode that applies of outside, described rotating shaft 31 has different structures in the outside of stretching out described pair of side plates 11.A concrete side of stretching out described pair of side plates 11 in rotating shaft 31 is provided with the operating portion 311 that coordinates with manual-operating mechanism.And be provided with at the opposite side that main shaft stretches out described pair of side plates 11 abutting end that matches with motor-operating mechanism.
As it is as follows to scheme whole operating mechanism process:
As Figure 10,11,12, be two cover switching mechanisms 2, the switching mechanism 2 on top is switching mechanism commonly used, the switching mechanism 2 of bottom is standby switching mechanism.In following narration, the unit number of switching mechanism commonly used is not with " ` "; The unit number band of standby switching mechanism " ` ".
In Figure 10, automatic change-over is in open position, and namely normal (standby) do not carry moving contact 300 and fixed contact 400 closures with switching mechanism.External force (manpower or electric operating) drives driving gear 32 and clockwise rotates, driving gear 32 drives driven gear 251 again and rotates counterclockwise, driven gear 251 carries gear base plate 252 and rotates counterclockwise together, the abutting end of the second arc groove 2521 on gear base plate 252 drives the first drive rod 222 and rotates, while compression spring assembly 23, when the first drive rod 222 arrives mechanical dead point, namely on the line of the centre of gyration of the centre of gyration that is centered close to main shaft 21 commonly used of the first drive rod 222 and the first matching seat 232.When this machinery dead point, spring assembly 23 energy storage reach maximization, simultaneously, are positioned at described the first arc groove 241 1 brace 223 that the second drive rod 224 of end drives by the first drive rod 222 of conflicting and drive to first arc groove 241 another ends of conflicting.In case the first drive rod 222 is crossed this machinery dead point, the motion energy of switching mechanism 2 is provided by spring assembly 23.Spring assembly 23 delivered energy are specially promotion the first drive rod 222 and continue to rotate counterclockwise, and the first drive rod 222 is in described the second interior rotation of arc groove 2521.Synchronous, the second drive rod 224 promotes actuator 24 and rotates counterclockwise.Related, actuator 24 rotates main shaft 21, and carries out closing motion by connecting rod 200 drive moving contacts 300, until rotate in place.Described rotateing in place refers to, gear shaft 242 collisions of actuator 24 and peripheral hardware, and actuator 24 reaches poised state with connecting rod 200 simultaneously, i.e. above-mentioned combined floodgate hold mode.
When feed motion was completed in above-mentioned switching mechanism commonly used, certain conversion is also synchronously occuring in standby switching mechanism, is specially: driving gear 32 clockwise rotated, and drove driven gear 251` and rotated counterclockwise.The second arc groove 2521` of gear base plate 252` follows rotation.When initial, the first drive rod 222` is positioned at the upper end of the second arc groove 2521`, and rotating counterclockwise of relative the first drive rod 222` occurs the second arc groove 2521`, and relative, the first drive rod 222` is motionless, until near the lower end of the second arc groove 2521`.
After often (standby) completes above-mentioned switching motion with switching mechanism, enter the state of Figure 11, i.e. switching mechanism commonly used is in "on" position, and relative, standby switching mechanism is in gate-dividing state.
As Figure 11, lower step action is as follows, external force (manpower or motor-operating mechanism) drives driving gear 32 and rotates counterclockwise, driving gear 32 drives driven gear 251 again and clockwise rotates, driven gear 251 carries gear base plate 252 and clockwise rotates together, the abutting end of the second arc groove 2521 on gear base plate 252 drives the first drive rod 222 and rotates compression spring assembly 23 simultaneously, when the first drive rod 222 arrives mechanical dead point, namely on the line of the centre of gyration of the centre of gyration that is centered close to main shaft 21 commonly used of the first drive rod 222 and the first matching seat 232.When this machinery dead point, spring assembly 23 energy storage reach maximization, simultaneously, are positioned at described the first arc groove 241 1 brace 223 that the second drive rod 224 of end drives by the first drive rod 222 of conflicting and drive to first arc groove 241 another ends of conflicting.In case the first drive rod 222 is crossed this machinery dead point, the motion energy of switching mechanism 2 is provided by spring assembly 23.Spring assembly 23 delivered energy are specially promotion the first drive rod 222 and continue to clockwise rotate, and the first drive rod 222 is in described the second interior rotation of arc groove 2521.Synchronous, the second drive rod 224 promotes actuator 24 and clockwise rotates.Related, actuator 24 rotates main shaft 21, and cut-offs motion by connecting rod 200 drive moving contacts 300, until rotate in place.Described rotateing in place refers to, gear shaft 242 collisions of actuator 24 and peripheral hardware.At this moment, the position-limiting action when (as Fig. 9) gear shaft 242 plays separating brake and puts in place namely stops clockwise rotating of actuator 24.Certainly can play simultaneously the spacing effect spacing with combined floodgate of separating brake by shape one gear shaft 242 of adjusting actuator 24.Referring to Fig. 6, if above-mentioned switching mechanism commonly used is provided with supporting limit assembly 26, after separating brake puts in place, triggers limit assembly 26 and realize its spacing effect, the whereabouts that prevents actuator 24.
When the separating brake action that above-mentioned switching mechanism commonly used is completed, certain conversion is also synchronously occuring in standby switching mechanism, is specially: driving gear 32 rotates counterclockwise, and drives driven gear 251` and clockwise rotates.The second arc groove 2521` of gear base plate 252` follows rotation.When initial, the first drive rod 222` is positioned at the lower end of the second arc groove 2521`, and clockwise rotating of relative the first drive rod 222` occurs the second arc groove 2521`, and relative, the first drive rod 222` is motionless, until near the upper end of the second arc groove 2521`.The miscellaneous part attonity.
After normal (standby) completes said process with switching mechanism, entered again the state of Figure 10 by the state of Figure 11, i.e. switching mechanism commonly used drives moving contact 300 and enters gate-dividing state from "on" position, and standby switching mechanism does not drive moving contact 300 actions.
External force (manpower or motor-operating mechanism) drives driving gear 32 and rotates counterclockwise, driving gear 32 drives driven gear 251 and driven gear 251` clockwise rotates, drive standby switching mechanism and carry out feed motion, and the main shaft of switching mechanism commonly used does not rotate.Due to switching mechanism commonly used and the back-to-back setting of standby switching mechanism, its structure is identical, and course of action is identical, therefore no longer repeats.After completing above-mentioned action, operating mechanism is entered the state of Figure 12 by Figure 10 state, i.e. standby switching mechanism drives coupled moving contact 300 and closes a floodgate, and switching mechanism commonly used keeps moving contact 300 in gate-dividing state.
Under the state of Figure 12, external force (manpower or motor-operating mechanism) drives driving gear 32 and clockwise rotates, and operating mechanism is returned the state of Figure 10 by the state of Figure 12.
Above-mentioned Four processes has consisted of operating mechanism Four processes at work, is also the Four processes of automatic change-over work simultaneously.Realized normal (standby) with the conversion between power supply, and had between conversion and first divide the characteristics of closing afterwards, satisfied the job requirement of automatic change-over.
The more important thing is, two group of first arc groove by being positioned at switching mechanism inside (241,241`) and the second arc groove (2521,2521`) have been realized first dividing afterwards closing in-house.
Because lever assembly 22, actuator 24, the gear assembly 25 of the switching mechanism 2 of the operating mechanism inside of automatic change-over all is located on main shaft 21, make in switching mechanism 2 except spring assembly 23, all move around main shaft 21, effectively dwindled taking up room of switching mechanism 2, make the operating mechanism of automatic change-over, simple in structure, compact.Again and, because gear driven mechanism 3 meshes two cover switching mechanisms 2 simultaneously, with respect to link component, it has output steadily, actuating force changes little advantage
Claims (3)
1.
A kind of mounting structure of automatic change-over main shaft is characterized in that: comprise framework (1), power supply rotating shaft (21) and limit shaft sleeve (53), described framework (1) comprises the side plate (11) that pair of parallel arranges; Each side plate (11) is provided with the bar-shaped trough (111) of unidirectional opening, the openend of bar-shaped trough (111) is towards side plate (11) periphery, bar-shaped trough (111) symmetry on pair of side plates (11), the blind end of arbitrary bar-shaped trough (111) is provided with a diameter greater than the circle of contact hole (112) of bar-shaped trough (111) width, and circle of contact hole (112) is provided with a tangent plane (1121); Described bar-shaped trough (111) can be passed through in power supply rotating shaft (21) two ends, limit shaft sleeve (253) is enclosed within power supply rotating shaft (21) two ends, limit shaft sleeve (253) is comprised of cylinder (2531) and cap (2532), be provided with tangent plane (25321) on described cap (2532), this cap (2532) is fitted with circle of contact hole (112), and tangent plane (25321) is fitted with the section (1121) in circle of contact hole (112).
2.
The mounting structure of a kind of automatic change-over main shaft according to claim 1 is characterized in that: described bar-shaped trough (111) arranges for vertical, corresponding circle of contact hole (112) symmetry on the pair of side plates (11) of framework (1).
3.
The mounting structure of one one kinds of automatic change-over main shafts according to claim 2, it is characterized in that: described framework (1) also comprises cover plate (12), cover plate (12) both sides are provided with the first crimp (122), be positioned at bar-shaped trough (111) both sides on side plate (11) and be provided with the second crimp (113), the first crimp (122) is fastening with the second crimp (113)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737502 CN202977216U (en) | 2012-12-28 | 2012-12-28 | Installation structure of automatic transfer switch main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737502 CN202977216U (en) | 2012-12-28 | 2012-12-28 | Installation structure of automatic transfer switch main shaft |
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| CN202977216U true CN202977216U (en) | 2013-06-05 |
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| CN 201220737502 Expired - Lifetime CN202977216U (en) | 2012-12-28 | 2012-12-28 | Installation structure of automatic transfer switch main shaft |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282462A (en) * | 2014-10-24 | 2015-01-14 | 贵州长征开关制造有限公司 | Moving contact switching structure for two-section automatic transfer switching device |
| CN107790944A (en) * | 2017-11-13 | 2018-03-13 | 河南森源电气股份有限公司 | The welding tooling of breaker main shaft connecting lever |
| CN107968004A (en) * | 2017-12-23 | 2018-04-27 | 无锡凯绎科技有限公司 | Workalike interlock |
-
2012
- 2012-12-28 CN CN 201220737502 patent/CN202977216U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282462A (en) * | 2014-10-24 | 2015-01-14 | 贵州长征开关制造有限公司 | Moving contact switching structure for two-section automatic transfer switching device |
| CN104282462B (en) * | 2014-10-24 | 2016-07-06 | 贵州泰永长征技术股份有限公司 | A kind of moving contact transformational structure of two section automatic transfer switching electric appliances |
| CN107790944A (en) * | 2017-11-13 | 2018-03-13 | 河南森源电气股份有限公司 | The welding tooling of breaker main shaft connecting lever |
| CN107790944B (en) * | 2017-11-13 | 2024-03-26 | 河南森源电气股份有限公司 | Welding fixture for main shaft crank arm of circuit breaker |
| CN107968004A (en) * | 2017-12-23 | 2018-04-27 | 无锡凯绎科技有限公司 | Workalike interlock |
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