CN210739295U - Speed reducer for circuit breaker - Google Patents

Abstract

The utility model relates to a technical field of circuit breaker, concretely relates to speed reducer for circuit breaker, include: the motor comprises two support plates arranged in parallel relatively, a linkage mechanism fixed between the two support plates, and a motor fixed on the side wall of any one support plate; the motor is suitable for being linked with the linkage mechanism to rotate; the linkage mechanism is suitable for linkage of the extension of the energy storage spring; the outer side wall of the linkage mechanism is uniformly provided with a plurality of limiting grooves; a collision mechanism is hinged between the two supporting plates; after the energy storage of the energy storage spring is finished, the abutting mechanism can be reversely inserted into the limiting groove to block the linkage between the linkage mechanism and the energy storage spring, the energy storage spring is limited to continue storing energy, the energy storage of the energy storage spring is suspended through the suspension of the linkage mechanism, and the motor can be stopped without being automatically controlled and suspended.

Description

Speed reducer for circuit breaker

Technical Field

The utility model relates to a technical field of circuit breaker, concretely relates to speed reducer for circuit breaker.

Background

The energy storage of the energy storage spring can be driven by the existing circuit breaker through a manual or electric control mode, the energy storage spring can be suspended for energy storage through the stop work of the motor after the energy storage is completed by the energy storage spring, but the energy storage spring can be stretched for a certain distance after the motor stops due to the inertia effect of the motor, so that the energy storage of the energy storage spring is excessive, if the emergency stop of the motor is required, the requirement on the motor is higher, the cost is higher, and if the motor can be prevented from rotating outside, the requirement on the motor can be greatly reduced, and the cost is reduced.

Therefore, it is necessary to design a speed reducer which has low cost and can quickly suspend the energy storage of the energy storage spring.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a speed reducer for circuit breaker solves above-mentioned problem that the energy storage spring energy storage is excessive because of continuing the energy storage under inertial effect after the energy storage is accomplished.

The utility model provides a technical scheme that its technical problem adopted is: a speed reducer for a circuit breaker, comprising: the motor comprises two support plates arranged in parallel relatively, a linkage mechanism fixed between the two support plates, and a motor fixed on the side wall of any one support plate; the motor is suitable for being linked with the linkage mechanism to rotate; the linkage mechanism is suitable for linkage of the extension of the energy storage spring; the outer side wall of the linkage mechanism is uniformly provided with a plurality of limiting grooves; a collision mechanism is hinged between the two supporting plates; after the energy storage of the energy storage spring is finished, the abutting mechanism can be reversely inserted into the limiting groove (the reverse direction is the reverse direction of the rotation of the linkage mechanism) so as to block the linkage between the linkage mechanism and the energy storage spring, the linkage mechanism comprises a linkage rotating shaft, and a driving part, a speed reducing part and an assembling part are sequentially arranged along the linkage rotating shaft; the driving part is suitable for driving the linkage rotating shaft to rotate through linkage with the motor; the speed reduction part is suitable for rotating along with the linkage rotating shaft; the assembling part is rotationally connected with the linkage rotating shaft and is suitable for being linked with the energy storage spring; wherein the motor can drive the energy storage spring to store energy through the assembling part.

Further, two the backup pad is corresponding respectively has seted up and has rotated the hole, conflict mechanism includes: the two ends of the rotating hole are respectively inserted into the contact connecting rod, the contact push rod is fixed in the middle of the contact connecting rod, and the micro switch is arranged below the contact push rod and is suitable for supporting the contact push rod; after the energy storage of the energy storage spring is finished, the micro switch can jack up the abutting push rod to rotate along the rotating hole to reversely insert into the limiting groove.

Furthermore, the bottom of the abutting push rod is provided with an inclined block suitable for being pushed by the micro switch; and the height of the inclined block is gradually increased from right to left; wherein the microswitch is suitable for pushing the abutting push rod to reversely insert into the limit groove along the inclined block.

Furthermore, a stop block is arranged on the outer wall of the linkage mechanism; a limiting plate is arranged at the position, located on the stop block, of the abutting connecting rod; when the interference connecting rod rotates around the rotating hole, the limiting plate can be blocked by the stop block.

Further, the limiting plate is a folded plate; and the bending angle of the limiting plate is 70-120 degrees.

Further, a driving gear is arranged on a driving shaft of the motor; the driving part includes a driven gear engaged with the driving gear; the driven gear is sleeved on the linkage rotating shaft in a rotating mode, and the driven gear and the linkage rotating shaft are respectively provided with corresponding notches; a driving rod is inserted in the notch; the linkage rotating shaft is driven by the driving rod to synchronously rotate along with the driven gear.

Furthermore, a linkage gear ring is arranged on the outer wall of the linkage rotating shaft; the speed reduction part comprises a first gear ring, a fixed plate and a second gear ring which are sleeved on the linkage rotating shaft, one side of the fixed plate surrounds the linkage gear ring and is respectively and rotatably connected with first planetary gears meshed with the linkage gear ring, and the other side of the fixed plate surrounds the linkage gear ring and is respectively and rotatably connected with second planetary gears; the first planetary gears are respectively meshed with the first gear rings; the first gear ring is rotationally connected with the second gear ring; the second planet gears are respectively meshed with the second gear rings; the assembling part is fixed with the second gear ring; the limiting groove is formed in the outer wall of the first gear ring; the stop block is arranged on the outer wall of the first gear ring; wherein the assembly part can rotate with the linkage rotating shaft in a speed reduction manner.

Further, the fitting portion includes a sleeve fixed to a middle portion of the second ring gear; the middle part of the sleeve is provided with a connecting groove; wherein the inner wall of the connecting groove is provided with an anti-rotation groove.

Furthermore, the two support plates are fixedly connected through connecting columns respectively positioned at four corners; and the connecting column is sleeved with a supporting sleeve positioned between the two supporting plates.

The beneficial effects of the utility model are that, the utility model provides a speed reducer for circuit breaker has seted up a plurality of spacing grooves on link gear's lateral wall, and these spacing grooves are the chute for the hypotenuse of spacing groove plays the guide effect, and the inside wall of spacing groove plays limiting displacement, lies in simultaneously in two backup pads link gear's below same position department is articulated with the both ends of a conflict mechanism respectively, and conflict mechanism can rotate round the pin joint of conflict mechanism and backup pad, simultaneously, follows through conflict mechanism link gear pivoted opposite direction rotates and inserts the spacing inslot to conflict rotates with restriction link gear on the inside wall of spacing groove, thereby restriction energy storage spring continues the energy storage, realizes the pause of energy storage spring energy storage through link gear's pause, does not need motor automatic control pause just to realize stopping.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a preferred embodiment of a speed reducer for a circuit breaker according to the present invention;

fig. 2 is a schematic structural view of a preferred embodiment of the collision mechanism of the present invention;

fig. 3 is a schematic structural view of a preferred embodiment of the limiting plate of the present invention;

FIG. 4 is a schematic structural view of a preferred embodiment of the linkage mechanism of the present invention;

fig. 5 is a schematic structural view of a preferred embodiment of the driving part of the present invention;

fig. 6 is a schematic structural view of a preferred embodiment of the reduction gear unit of the present invention.

In the drawings

The support plate 1, the rotating hole 11 and the support sleeve 12;

the motor 2 and the driving gear 21;

the linkage mechanism 3, the limiting groove 31, the stopper 32, the linkage rotating shaft 33, the driving part 34, the driven gear 341, the notch 342, the driving rod 343, the speed reducing part 35, the first gear ring 351, the fixed plate 352, the second gear ring 353, the first planetary gear 354, the second planetary gear 355, the assembling part 36, the sleeve 361, the connecting groove 362, the rotation preventing groove 363 and the linkage gear ring 37;

the mechanism 4, the link 41, the push rod 42, the microswitch 43, the sloping block 44, the limit plate 45 of contradicting.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like 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 "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

As shown in the figure, the utility model provides a speed reducer for circuit breaker, include: two opposite and parallel supporting plates 1 for providing a good supporting effect for the speed reducer, the two supporting plates 1 are fixed by connecting pieces at four end corners, the fixing stability of the whole speed reducer is further improved by fixing four corners, a motor 2 is fixed at the outer side of one supporting plate 1, an output shaft of the motor 2 passes through the supporting plate 1 and extends to a position between the two supporting plates 1, the motor 2 provides driving force for the speed reducer, a linkage mechanism 3 linked with the motor 2 is erected between the two supporting plates 1, the output end of the linkage mechanism 3 can be linked with an energy storage spring to stretch for storing energy, after the energy storage of the energy storage spring is finished, the energy storage of the energy storage spring needs to be suspended by sudden stop of the motor 2, the requirement for the motor 2 is higher, the purchasing cost for the motor 2 is higher, and the motor 2 is actually damaged by needing the sudden stop of the motor 2, greatly reduced the life of motor 2, consequently, in order to provide one kind and just stop the speed reducer of energy storage after making the energy storage spring energy storage finish, motor 2's life when can improve automatically controlled again simultaneously needs to adopt following scheme:

the outer side wall of the linkage mechanism 3 is provided with a plurality of limiting grooves 31, the limiting grooves 31 are chute grooves, the inclined edges of the limiting grooves 31 play a guiding role, the inner side walls of the limiting grooves 31 play a limiting role, the two supporting plates 1 are located at the same position below the linkage mechanism 3 and hinged to two ends of a collision mechanism 4 respectively, the collision mechanism 4 can rotate around the hinged point of the collision mechanism 4 and the supporting plates 1, meanwhile, the collision mechanism 4 is located along the opposite rotating direction of the linkage mechanism 3 and inserted into the limiting grooves 31, and the collision mechanism 3 rotates on the inner side walls of the limiting grooves 31 in a limiting mode, so that the energy storage spring is limited to continue to store energy, the energy storage of the energy storage spring is suspended through the linkage mechanism 3, and the energy storage can be stopped without the automatic control of the motor 2.

Optionally, the two support plates 1 are respectively provided with a rotation hole 11 at a hinge joint with the collision mechanism 4, the rotation hole 11 is a hinge joint of the collision mechanism 4, the collision mechanism 4 includes a collision connecting rod 41, a collision push rod 42 integrally and vertically connected to the middle of the collision connecting rod 41, and a micro switch 43 fixed between the two support plates 1, two ends of the collision connecting rod 41 are respectively inserted into the corresponding rotation holes 11, and the rotation of the collision push rod 42 is realized by the cooperation of the collision connecting rod 41 and the rotation hole 11; specifically, the rotation of the driving abutting connecting rod 41 may adopt a form that the micro switch 43 is fixed below the abutting connecting rod 41 through a bracket, and the micro switch 43 faces the abutting connecting rod 41, when in use, after the energy storage of the energy storage spring is completed, the micro switch 43 triggers the extension bar to jack the abutting push rod 42 to go deep into the limiting groove 31, so as to block the linkage mechanism 3 from rotating, and further realize the pause of the external driving motor 2.

Preferably, it should be noted that, in the process that the micro switch 43 pushes the abutting link 41, since the angle between the protruding rod of the micro switch 43 and the abutting link 41 changes from time to time, that is, the pushing force of the micro switch 43 to the abutting link 41 changes from time to time, specifically, as the protruding rod of the micro switch 43 pushes the abutting link 41 along the abutting link 41, the pushing force of the protruding rod of the micro switch 43 to the abutting link 41 is smaller, and as the abutting link 42 goes deep into the limiting groove 31, the resistance of the limiting groove 31 to the abutting link 42 is larger, which requires that the pushing force of the micro switch 43 to the abutting link 41 is larger, in order to achieve the above situation, the following scheme is adopted, in which an inclined block 44 is integrally connected to the bottom of the abutting link 42, and the height of the inclined block 44 relative to the abutting link 42 is gradually increased from right to left, so that when the abutting link 42 is reversely inserted into the limiting groove 31, (i.e., in the opposite direction of the rotation of the reverse link mechanism 3 In the process that the extension rod of the micro switch 43 slides along the inclined block 44, the distance between the end of the extension rod of the micro switch 43 and the abutting push rod 42 is gradually reduced, and the extension rod of the micro switch 43 has sufficient thrust to the abutting push rod 42 through the design, so that the abutting push rod 42 can be inserted into the limiting groove 31.

Preferably, in order to prevent the microswitch 43 from pushing the abutting push rod 42 to rotate over, the outer wall of the linkage mechanism 3 is provided with a stop 32; a limit plate 45 is arranged at the position of the stop block 32 of the interference connecting rod 41; when the interference connecting rod 41 rotates around the rotating hole 11, the limiting plate 45 can be blocked by the stopper 32, specifically, in the process that the interference push rod 42 is pushed by the micro switch 43 to rotate, the maximum swinging range of the interference push rod 42 is the position where the limiting plate 45 contacts with the stopper 32, and the design of the stopper 32 can avoid that the interference push rod 42 rotates excessively and needs to be reset manually, so that the labor intensity of an operator is high, the operator needs to stare at the interference push rod 42 constantly without the condition of excessive rotation, and once the condition of excessive rotation is found, the interference push rod 42 needs to be reset in time.

Preferably, the limiting plate 45 is a folded plate; and the bending angle of the limiting plate 45 is preferably 100 degrees, the limiting plate 45 is set to be in a folded plate shape, so that when the limiting plate 45 is in contact with the stopper 32, the stopper 32 cannot slide out of the inner side of the limiting plate 45, the limiting effect of the stopper 32 on the limiting plate 45 is further ensured, meanwhile, when the bending angle of the limiting plate 45 is 100 degrees, the limiting effect of the stopper 32 on the limiting plate 45 is best, and when the bending angle of the limiting plate 45 is greater than 100 degrees or less than 100 degrees, the stopper 32 can easily slide out along the limiting plate 45.

Optionally, the linkage mechanism 3 includes a linkage rotating shaft 33, and a driving portion 34, a decelerating portion 35 and an assembling portion 36 are sequentially disposed along the linkage rotating shaft 33; the driving part 34 is adapted to drive the linkage rotating shaft 33 to rotate through linkage with the motor 2; the decelerating portion 35 is adapted to rotate following the linkage rotating shaft 33; the assembling part 36 is rotatably connected with the linkage rotating shaft 33, and the assembling part 36 is suitable for linkage with an energy storage spring; wherein motor 2 can pass through 36 drive energy storage spring of assembly portion tensile energy storage, through the design simple structure of drive division 34, connect firmly, improved the output torque of assembly portion 36 through the design of speed reduction portion 35, guaranteed energy storage spring tensile stability, also avoid too big and damage the condition of motor 2 to the load of motor 2 simultaneously, further protected motor 2's life.

Optionally, a driving gear 21 is fixedly sleeved on the driving shaft of the motor 2; the driving portion 34 includes a driven gear 341 engaged with the driving gear 21, the driven gear 341 is sleeved on the linkage rotating shaft 33, a slot 342 is formed in the driven gear 341 and the linkage rotating shaft 33 correspondingly, a driving rod 343 is installed in the slot 342 in an adaptive manner, the linkage rotating shaft 33 can rotate synchronously with the driven gear 341 through the setting of the driving rod 343, and the assembly portion 36 is driven by the deceleration portion 35 to stretch the energy storage spring.

In this embodiment, the synchronous rotation of the driven gear 341 and the linking rotation shaft 33 depends on the limit of the driving rod 343, and for the convenience of installing the driving rod 343, the notch 342 needs to be an open slot whose opening is located on the side of the driven gear 341.

Optionally, the outer wall of the linkage rotating shaft 33 is integrally connected with a linkage gear ring 37; the speed reducing portion 35 includes a first ring gear 351, a fixed plate 352 and a second ring gear 353, wherein the first ring gear 351 is rotatably connected to the second ring gear 353, the second ring gear 353 is inserted into the first ring gear 351, one side of the fixed plate 352 is rotatably connected to three first planetary gears 354, each first planetary gear 354 is engaged with the linkage ring gear 37, the other side of the fixed plate 352 is also rotatably connected to three second planetary gears 355, each second planetary gear 355 is engaged with the linkage ring gear 37, the assembly portion 36 is fixed at the outer center of the second ring gear 353, the linkage ring gear 37 is driven to rotate after the linkage shaft 33 rotates, the linkage ring gear 37 rotates to drive each first planetary gear 354 to rotate, each first planetary gear 354 rotates to drive each second planetary gear 355 to rotate, and the second planetary gear 355 rotates to drive the second ring gear 353 to rotate.

In this embodiment, the limiting grooves 31 are uniformly formed in the outer wall of the first ring gear 351, and the stopper 32 is fixed to the outer wall of the first ring gear 351.

Specifically, the fitting portion 36 includes a sleeve 361 fixed to a middle portion of the second ring gear 353; the middle part of the sleeve 361 is provided with a connecting groove 362; an anti-rotation groove 363 is formed in the inner wall of the connecting groove 362, so that the synchronous linkage of the energy storage spring is achieved.

Optionally, the two support plates 1 are fixedly connected by connecting columns respectively located at four corners, specifically, the connecting piece is the connecting column; and the connecting column is sleeved with two supporting sleeves 12 positioned between the two supporting plates 1, and the vibration amplitude of the two supporting plates 1 is reduced by arranging the supporting sleeves 12, so that the vibration of the motor 2 is reduced, and the service life of the motor 2 is further prolonged.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (9)

1. A speed reducer for a circuit breaker, comprising: the motor comprises two support plates arranged in parallel relatively, a linkage mechanism fixed between the two support plates, and a motor fixed on the side wall of any one support plate; and

the motor is suitable for being linked with the linkage mechanism to rotate;

the linkage mechanism is suitable for linkage of the extension of the energy storage spring; it is characterized in that the preparation method is characterized in that,

the outer side wall of the linkage mechanism is uniformly provided with a plurality of limiting grooves;

a collision mechanism is hinged between the two supporting plates; wherein

After the energy storage of the energy storage spring is finished, the abutting mechanism can be reversely inserted into the limiting groove so as to block the linkage between the linkage mechanism and the energy storage spring;

the linkage mechanism comprises a linkage rotating shaft, and a driving part, a decelerating part and an assembling part are sequentially arranged along the linkage rotating shaft;

the driving part is suitable for driving the linkage rotating shaft to rotate through linkage with the motor;

the speed reduction part is suitable for rotating along with the linkage rotating shaft;

the assembling part is rotationally connected with the linkage rotating shaft and is suitable for being linked with the energy storage spring; wherein

The motor can drive the energy storage spring to store energy through the assembling part.

2. The speed reducer for circuit breakers of claim 1, wherein,

the two supporting plates are respectively provided with a rotating hole correspondingly,

conflict mechanism includes: the two ends of the rotating hole are respectively inserted into the contact connecting rod, the contact push rod is fixed in the middle of the contact connecting rod, and the micro switch is arranged below the contact push rod and is suitable for supporting the contact push rod; wherein

After the energy storage of the energy storage spring is finished, the micro switch can jack up the abutting push rod to rotate along the rotating hole to reversely insert into the limiting groove.

3. A speed reducer for a circuit breaker according to claim 2,

the bottom of the abutting push rod is provided with an inclined block suitable for being pushed by the microswitch; and

the height of the inclined block is gradually increased from right to left; wherein

The micro switch is suitable for pushing the abutting push rod to be reversely inserted into the limiting groove along the inclined block.

4. A speed reducer for a circuit breaker according to claim 3,

a stop block is arranged on the outer wall of the linkage mechanism; and

a limiting plate is arranged at the position of the stop block of the abutting connecting rod; wherein

When the abutting connecting rod rotates around the rotating hole, the limiting plate can be blocked by the stop block.

5. The speed reducer for circuit breakers of claim 4, wherein,

the limiting plate is a folded plate; and

the bending angle of the limiting plate is 70-120 degrees.

6. A reducer for a circuit breaker according to claim 5,

a driving gear is arranged on a driving shaft of the motor;

the driving part includes a driven gear engaged with the driving gear; and

the driven gear is sleeved on the linkage rotating shaft in a rotating manner, and the driven gear and the linkage rotating shaft are respectively provided with corresponding notches;

a driving rod is inserted in the notch; wherein

The linkage rotating shaft follows the driven gear through the driving rod to synchronously rotate.

7. A reducer for a circuit breaker according to claim 6,

the outer wall of the linkage rotating shaft is provided with a linkage gear ring;

the speed reduction part comprises a first gear ring, a fixed plate and a second gear ring which are sleeved on the linkage rotating shaft, one side of the fixed plate surrounds the linkage gear ring and is respectively and rotatably connected with first planetary gears meshed with the linkage gear ring, and the other side of the fixed plate surrounds the linkage gear ring and is respectively and rotatably connected with second planetary gears;

the first planetary gears are respectively meshed with the first gear rings;

the first gear ring is rotationally connected with the second gear ring;

the second planet gears are respectively meshed with the second gear rings;

the assembling part is fixed with the second gear ring;

the limiting groove is formed in the outer wall of the first gear ring;

the stop block is arranged on the outer wall of the first gear ring; wherein

The assembly part can follow the linkage rotating shaft to rotate at a reduced speed.

8. A speed reducer for a circuit breaker according to claim 7,

the assembling part comprises a sleeve fixed in the middle of the second gear ring; and

the middle part of the sleeve is provided with a connecting groove; wherein

The inner wall of the connecting groove is provided with an anti-rotation groove.

9. A reducer for a circuit breaker according to claim 8,

the two supporting plates are fixedly connected through connecting columns respectively positioned at four corners; and

the connecting column is sleeved with a supporting sleeve positioned between the two supporting plates.

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