CN115995358A - Electric and manual two-station spring operating mechanism - Google Patents
Electric and manual two-station spring operating mechanism Download PDFInfo
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- CN115995358A CN115995358A CN202310036008.2A CN202310036008A CN115995358A CN 115995358 A CN115995358 A CN 115995358A CN 202310036008 A CN202310036008 A CN 202310036008A CN 115995358 A CN115995358 A CN 115995358A
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Abstract
The invention discloses an electric and manual two-station spring operating mechanism, which comprises a front clamping plate, wherein a rear clamping plate is arranged on one side of the front clamping plate, and the front clamping plate is connected with the rear clamping plate through a clamping plate supporting shaft; a motor is arranged on one side of the front clamping plate, a driving mechanism is arranged at the output end of the motor, a driving crank arm shaft is inserted into one side of the driving mechanism away from the motor, the driving crank arm shaft penetrates through the front clamping plate and is connected with the rear clamping plate, two groups of driving crank arms are arranged on the outer side of the circumference of the driving crank arm shaft, and a spring assembly is arranged between the two groups of driving crank arms; one side of the rear clamping plate is provided with a transmission mechanism, and the transmission mechanism is sleeved on the outer side of the circumference of the driving crank arm shaft. The electric and manual two-station spring operating mechanism provided by the invention can realize the switching of the two stations in a manual or electric mode, and can ensure the switching characteristic requirement of the switch.
Description
Technical Field
The invention relates to the field of switch operating mechanisms, in particular to an electric and manual two-station spring operating mechanism.
Background
In the field of 12kV power products, the switch types comprise products such as a column product, a ring main unit product, an air switch cabinet, a solid cabinet and the like, the column product also comprises a breaker switch, a load switch, a disconnecting switch and the like, wherein the disconnecting switch is provided with two-station and three-station switches, the two-station switches are respectively provided with two positions, the three-station switches are respectively provided with a main switch closing position, a switch opening position and a grounding position, the position state of the switch is realized by means of a mechanism, and the switch opening and closing state of the switch is realized by means of the opening and closing actions of the mechanism. Although the functional requirements of the switches are the same, the switch structure with the same function designed by different manufacturers has large size difference, and the final pursuit of the product design aims at making the product structure simple, reliable and economical.
The two-station mechanism in the current market is more in variety, large in difference of appearance forms, different in transmission structure, and most of mechanisms are used for carrying out structural improvement by referring to the original mechanism model, and some products are complex in design, low in reliability, high in cost, really according to the product principle requirement, few in products designed by applying theoretical knowledge, and few in innovation points.
The main switch part is operated by two stations or three stations, when the grounding position is needed, the mechanism is changed into three stations, but the added grounding position is separated from the main switch operation shaft and is independent, and only manual operation is needed, so that the electric and manual operation are both carried out on the main switch operation by the three stations or the two stations, when the mechanism is required to have both manual function and electric function, the current domestic mechanism is designed to imitate foreign products such as Siemens, ABB and Schneider products, and the clutch structure is added to the products to realize the requirements, and the clutch means the separation of the manual and electric structures.
The clutch structure is explained as follows: the output shaft of the motor rotates to only output in one direction and output in two directions, and the motor with two directions is selected to be used, if the clutch structure is not provided, when the manual driving mechanism operates the shaft, the motor is required to drive the motor shaft to rotate together, the motor is a motor with two directions, the motor is internally provided with no clutch structure, the motor shaft cannot be driven to rotate together by external force, and the motor shaft is driven to be used as the same mechanism operation shaft (the operation shaft is a crank arm shaft of a driving spring in the mechanism) in electric or manual operation, so that the manual operation mechanism cannot be operated, and the clutch structure is required to be provided for using the two directions of the motor.
The clutch device is generally complex in design and high in cost, for example, a manual and electric combined three-station mechanism popularized by ABB corporation is more than 80% in market share currently, the mechanism adopts a complex clutch structure, the structure is driven by a turbine worm structure, the processing cost of the turbine worm and the worm is high, the worm is made of tin bronze, the material cost is high, meanwhile, the internal structure of the clutch is complex, the manufacturing process is difficult, and the manufacturing cost is high.
Because the turbine worm structure is low in efficiency, the driven motor is 65W or 80W generally, the motor power is high, the starting current is large, the current impact of the electric loop of the whole cabinet body is large, in order to solve the problem, only better electric elements can be adopted to avoid loop tripping, or fuses are connected in series in the loop to solve the problem, but the fuse is always blown, after-sales personnel are required to replace the fuse on site, and the cost is higher.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an electric and manual two-station spring operating mechanism which has the advantages of simple structural design and low cost, thereby solving the problems of complex structural design and high cost.
(II) technical scheme
In order to realize the advantages of simple structural design and low cost, the invention adopts the following specific technical scheme:
an electric and manual two-station spring operating mechanism comprises a front clamping plate, wherein a rear clamping plate is arranged on one side of the front clamping plate, and the front clamping plate is connected with the rear clamping plate through a clamping plate supporting shaft; a motor is arranged on one side of the front clamping plate, a driving mechanism is arranged at the output end of the motor, a driving crank arm shaft is inserted into one side of the driving mechanism away from the motor, the driving crank arm shaft penetrates through the front clamping plate and is connected with the rear clamping plate, two groups of driving crank arms are arranged on the outer side of the circumference of the driving crank arm shaft, and a spring assembly is arranged between the two groups of driving crank arms; one side of the rear clamping plate is provided with a transmission mechanism, and the transmission mechanism is sleeved on the outer side of the circumference of the driving crank arm shaft.
Further, in order to realize that the switch-on and switch-off are limited when the driving crank arm is in contact with the limiting rod under the matching action of the limiting groove and the limiting rod, the limiting groove is formed in two ends of one side of the driving crank arm, and limiting rods matched with the limiting groove are symmetrically arranged between the front clamping plate and the rear clamping plate and close to one side of the driving crank arm.
Further, in order to drive the movement of the crank arm shaft under the action of the driving mechanism, the device is convenient to rapidly realize opening and separating the brake, the driving mechanism comprises a first connecting crank arm arranged at the output end of the motor, a connecting rod is arranged on one side of the first connecting crank arm, a second connecting crank arm is arranged on one side of the connecting rod away from the first connecting crank arm, the second connecting crank arm is arranged on the outer side of the circumference of the driving crank arm shaft, a mounting hole is formed in one side of the connecting crank arm, and a pin shaft matched with the mounting hole is arranged on one side of the connecting rod close to the first connecting crank arm.
Further, in order to be able to compress the spring to the shortest when the spring, the second fixed shaft and the connecting line midpoint of the driving crank shaft are, namely, when the spring is in the middle, the spring compression force is maximum, the first middle point spring is unfolded, the driving crank arm drives the gear to start to rotate rapidly under the driving of the spring, the first fixed shaft is arranged between the two groups of driving crank arms, the second fixed shaft is arranged between the front clamping plate and the rear clamping plate and at one side far away from the limiting rod, the spring assembly comprises a spring guide sleeve which is arranged on the outer side of the circumference of the second fixed shaft in an inserting mode, a spring guide rod is arranged on one side of the spring guide sleeve far away from the second fixed shaft, the spring guide rod is arranged on the outer side of the circumference of the first fixed shaft in an inserting mode, and the spring guide sleeve and the outer side of the circumference of the spring guide rod are provided with springs.
Further, in order to enable the first gear to be meshed with the second gear for transmission under the action of the transmission mechanism, the second gear drives the output shaft to rotate and then drives the switch crank arm to conduct switching-on and switching-off, the transmission mechanism comprises the first gear arranged on one side of the rear clamping plate, the second gear meshed with the first gear is arranged on the outer side of the circumference of the first gear, one side of the driving crank shaft is arranged at the center of the first gear, and a connecting plate is arranged on one side, away from the rear clamping plate, of the second gear.
Further, in order to realize switching-on or switching-off limiting by driving the crank arm to be in contact with the first limiting shaft or the second limiting shaft under the action of the second limiting shaft and the second limiting shaft, the movement of the second gear caused by inertia is avoided, the switch is ensured to be accurately stopped at the switching-on or switching-off position, and the first limiting shaft and the second limiting shaft which are matched with the second gear are arranged on two sides of the second gear.
Further, in order to adjust the driving crank arm under the cooperation of the connecting shaft and the arc-shaped groove, the arc-shaped groove is formed in one side of the gear, and the connecting shaft matched with the arc-shaped groove is arranged between the front clamping plate and the rear clamping plate and penetrates through the driving crank shaft.
Further, in order to enable the first gear and the second gear to be meshed and driven under the action of the transmission mechanism, the second gear drives the output shaft to rotate and then drives the switch crank arm to conduct switching-on and switching-off, the output shaft is arranged at the center of the second gear, and the output shaft is located at one side, far away from the connecting plate, of the rear clamping plate.
(III) beneficial effects
Compared with the prior art, the invention provides an electric and manual two-station spring operating mechanism, which has the following beneficial effects:
(1) The electric and manual two-station spring operating mechanism provided by the invention can integrate the driving mechanism, the transmission mechanism and the matched spring assembly into the same closed air box so as to achieve the purposes of integration, miniaturization and intelligent design, and the device has the advantages of less number of required parts and simple structural design, so that the cost of the device is lower, the cost is reduced by about 50% compared with the cost of conventional products in the market, and the economic benefit is considerable.
(2) The electric and manual two-station spring operating mechanism provided by the invention can realize the switching of the two stations in a manual or electric mode, and can ensure the switching characteristic requirement of the switch.
(3) The transmission design of the invention adopts gear transmission, and the gear transmission is suitable for short-distance transmission, has high transmission efficiency, high transmission precision and short transmission distance, thereby being capable of carrying out angle conversion under the cooperation of the first gear and the second gear so as to meet the angle requirements of opening and closing the switch crank arm.
(4) The electric and manual two-station spring operating mechanism provided by the invention is convenient to maintain and control, the cost is greatly reduced, and compared with the prior art, the forward and reverse movement can be realized only by unidirectional rotation of the motor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 2 is a schematic view of an angle configuration of an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 4 is a schematic view of another angle configuration of an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 5 is a partial schematic view of an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the transmission mechanism of the electric and manual two-position spring operated mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a brake-off state of an electric and manual two-position spring operated mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic view of a connecting lever I in an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a brake release process for an electric and manual two-position spring operated mechanism according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a closing state of an electric and manual two-position spring operator according to an embodiment of the present invention;
FIG. 11 is a schematic illustration of a closing process of an electric and manual two-position spring operated mechanism according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a closing process at another position of the electric and manual two-position spring operating mechanism according to an embodiment of the present invention.
In the figure:
1. a front clamping plate; 2. a rear clamping plate; 3. a clamping plate supporting shaft; 4. a motor; 5. a driving mechanism; 501. connecting the first crank arm; 502. a connecting rod; 503. connecting a crank arm II; 504. a mounting hole; 505. a pin shaft; 6. driving a crank arm shaft; 7. driving the crank arm; 8. a spring assembly; 801. a spring guide sleeve; 802. a spring guide rod; 803. a spring; 9. a transmission mechanism; 901. a first gear; 902. a second gear; 903. a connecting plate; 10. a limit groove; 11. a limit rod; 12. a first fixed shaft; 13. a second fixed shaft; 14. a first limiting shaft; 15. a limiting shaft II; 16. an arc-shaped groove; 17. a connecting shaft; 18. an output shaft.
Detailed Description
For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the invention, an electric and manual two-station spring operating mechanism is provided.
The invention will now be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1 to 6, an electric and manual two-station spring operating mechanism according to an embodiment of the invention includes a front clamping plate 1, a rear clamping plate 2 is arranged at one side of the front clamping plate 1, and the front clamping plate 1 is connected with the rear clamping plate 2 through a clamping plate supporting shaft 3; a motor 4 is arranged on one side of the front clamping plate 1, a driving mechanism 5 is arranged at the output end of the motor 4, a driving crank shaft 6 is inserted into one side of the driving mechanism 5 away from the motor 4, the driving crank shaft 6 penetrates through the front clamping plate 1 and is connected with the rear clamping plate 2, two groups of driving crank arms 7 are arranged on the outer side of the circumference of the driving crank shaft 6, and a spring assembly 8 is arranged between the two groups of driving crank arms 7; one side of the rear clamping plate 2 is provided with a transmission mechanism 9, and the transmission mechanism 9 is sleeved on the outer side of the circumference of the driving crank shaft 6.
By means of the scheme, the electric and manual two-station spring operating mechanism provided by the invention can integrate the driving mechanism 5, the transmission mechanism 9 and the matched spring assembly 8 into the same closed air box, so that the purposes of integration, miniaturization and intelligent design are achieved, the number of required parts of the device is small, the structural design is simple, the cost of the device is low, the cost is reduced by about 50% compared with the cost of a conventional product in the market, and the economic benefit is considerable.
In one embodiment, for the driving crank arm 7, two ends of one side of the driving crank arm 7 are provided with limiting grooves 10, and limiting rods 11 matched with the limiting grooves 10 are symmetrically arranged between the front clamping plate 1 and the rear clamping plate 2 and close to one side of the driving crank arm 7, so that under the matching action of the limiting grooves 10 and the limiting rods 11, when the driving crank arm 7 is in contact with the limiting rods 11, closing and opening limiting can be realized.
In one embodiment, for the driving mechanism 5, the driving mechanism 5 includes a first connecting lever 501 disposed at an output end of the motor 4, a connecting rod 502 is disposed on one side of the first connecting lever 501, a second connecting lever 503 is disposed on a side of the connecting rod 502 away from the first connecting lever 501, the second connecting lever 503 is disposed on an outer side of a circumference of the driving lever shaft 6, a mounting hole 504 is formed on one side of the first connecting lever 501, and a pin 505 matched with the mounting hole 504 is disposed on a side of the connecting rod 502 close to the first connecting lever 501, so that the movement of the lever shaft 6 can be driven under the action of the driving mechanism 5, so that the device can rapidly realize opening and opening.
The specific working principle of the driving mechanism 5 is as follows: the motor 4 is started through an external control panel (including a PLC controller), the output shaft of the motor 4 drives the connecting crank arm I501 to move, the connecting crank arm I501 drives the connecting rod 502 to move under the cooperation of the mounting hole 504 and the pin shaft 505, the connecting rod 502 drives the connecting crank arm II 503 to move, and the connecting crank arm II 503 drives the driving crank arm shaft 6 to move.
In one embodiment, for the driving crank arm 7, a first fixed shaft 12 is disposed between the two driving crank arms 7, a second fixed shaft 13 is disposed between the front clamping plate 1 and the rear clamping plate 2 and on a side far away from the limiting rod 11, the spring assembly 8 includes a spring guide sleeve 801 inserted and disposed on a circumferential outer side of the second fixed shaft 13, a spring guide rod 802 is disposed on a side of the spring guide sleeve 801 far away from the second fixed shaft 13, and the spring guide rod 802 is inserted and disposed on a circumferential outer side of the first fixed shaft 12, and a spring 803 is disposed on a circumferential outer side of the spring guide sleeve 801 and the spring guide rod 802, so that when the spring 803, the second fixed shaft 13 and the driving crank arm shaft 6 are connected at a midpoint, the spring 803 is compressed to be the shortest, that is, when the spring 803 is in the middle, the spring 803 is expanded, and the first through midpoint spring 803 is expanded, the driving crank arm 7 drives the gear 901 to start to rotate rapidly.
In one embodiment, for the above-mentioned transmission mechanism 9, the transmission mechanism 9 includes a first gear 901 disposed on one side of the rear clamping plate 2, a second gear 902 meshed with the first gear 901 is disposed on the outer side of the circumference of the first gear 901, one side of the driving crank shaft 6 is disposed at the center of the first gear 901, and a connecting plate 903 is disposed on the side of the second gear 902 away from the rear clamping plate 2, so that the first gear 901 and the second gear 902 can be meshed for transmission under the action of the transmission mechanism 9, and the second gear 902 drives the output shaft 18 to rotate and then drives the switch crank to switch on and off.
In one embodiment, for the second gear 902, two sides of the second gear 902 are respectively provided with a first limiting shaft 14 and a second limiting shaft 15 which are matched with the second gear 902, so that under the action of the first limiting shaft 14 and the second limiting shaft 15, the crank arm 7 is driven to be in contact with the first limiting shaft 14 or the second limiting shaft 15 to realize switching-on or switching-off limiting, the movement of the second gear 902 caused by inertia is avoided, and the accurate stopping of a switch at a switching-on or switching-off position is ensured.
In one embodiment, for the first gear 901, an arc groove 16 is formed on one side of the first gear 901, and a connecting shaft 17 matched with the arc groove 16 is disposed between the front clamping plate 1 and the rear clamping plate 2 and penetrates through the driving crank arm shaft 6, so that the driving crank arm 7 can be adjusted under the matching action of the connecting shaft 17 and the arc groove 16.
In one embodiment, for the second gear 902, the output shaft 18 is disposed at the center of the second gear 902, and the output shaft 18 is located at one side of the rear clamping plate 2 away from the connecting plate 903, so that the first gear 901 and the second gear 902 can be meshed for transmission under the action of the transmission mechanism 9, and the second gear 902 drives the output shaft 18 to rotate and then drives the switch lever to perform switching on and off.
In order to facilitate understanding of the above technical solutions of the present invention, the following describes in detail the working principle or operation manner of the present invention in the actual process.
In practical application, the driving mechanism 5 (the working principle of the driving mechanism 5 is shown as above) rotates clockwise to drive the crank shaft 6, the spring 803 is compressed, when the spring 803 passes through the midpoint of the connecting line between the second fixed shaft 13 and the driving crank shaft 6, the spring 803 is compressed to be shortest, namely, when the spring 803 passes through the middle, the compression force of the spring 803 is maximum, the first spring 803 at the middle point is unfolded, the driving crank arm 7 drives the gear one 901 to start to rotate rapidly under the driving of the spring 803, the gear one 901 is meshed with the gear two 902 for transmission, the gear two 902 drives the output shaft 18 to rotate, and then the switch crank arm is driven to switch on;
after the switching-on is in place, the limiting grooves 10 at the two ends of the driving crank arm 7 are in contact with the limiting rod 11 to realize switching-on limiting, the spring 803 stops outputting work, but the moving gear II 902 and the output part have inertia and still move continuously, and at the moment, the limiting shaft I14 limits the gear II 902, so that the movement caused by the inertia is avoided, and the accurate stopping of the switch at the switching-on position is ensured;
the opening process is the reverse process of the closing process, when the spring operating mechanism is in the closing position, the driving mechanism 5 rotates clockwise to drive the crank shaft 6, when the spring 803 is in the middle, the spring 803 expands to drive the driving crank shaft 7 and the gear one 901 to rotate, the gear one 901 drives the gear two 902 to rotate, the gear two 902 drives the output shaft 18 to rotate, and then the switch crank shaft is driven to open;
after the opening is in place, the limit grooves at the two ends of the driving crank arm 7 are in contact with the limit rod 11 to realize opening limit, the spring 803 stops outputting work, but the gear II 902 and the output part which move have inertia and still move continuously, and at the moment, the limiting shaft II 15 limits the movement of the gear II 902, so that the movement caused by inertia is avoided, and the accurate stopping of the switch at the opening position is ensured.
The realization of the opening (closing) brake speed is calculated according to the output work generated by calculating the deformation of the spring 803 and the mass of a moving part, and meanwhile, the transmission efficiency is considered, so the lengths of the spring 803 and the driving crank arm 7 are designed and realized after calculation; because the arrangement space of the mechanism is smaller, the rotation angle range of the driving crank arm 7 of the mechanism is limited, the first gear 901 and the second gear 902 are adopted for carrying out angle conversion so as to meet the angle requirements of opening and closing of the crank arm of the switch, and of course, the angle conversion can also be realized by four-bar transmission, but the gear transmission efficiency is high, the transmission distance is short, and the design requirements of the invention are more met.
In addition, as shown in fig. 7-8, the electric and manual structure adopts a crank-rocker structure, and is composed of a first connecting crank arm 501, a second connecting crank arm 503 and a connecting rod 502, wherein the first connecting crank arm 501 is a crank and can rotate circumferentially, the second connecting crank arm 503 is a swinging rod, and the joint of the first connecting crank arm 501 and the connecting rod 502 is a special-shaped groove structure;
as shown in fig. 7, 9 and 10, the position state of the mechanism in fig. 7 is a brake release state, when the driving crank arm shaft 6 is operated clockwise during the brake release of the mechanism, the connecting crank arm two 503 drives the four-bar linkage to move, when the connecting crank arm two 503 rotates to the position in fig. 9, the spring 803 is in contact with the driving crank arm shaft 6 when the connecting rod 502 passes through, and the connecting rod 502 can swing around the connecting shaft of the connecting crank arm two 503 and rotate around the connecting rod 502 to drive the connecting crank arm one 501 to rotate anticlockwise and reach the position shown in fig. 10 to stop, so as to complete the brake release operation of the mechanism.
As shown in fig. 10-12, the mechanism in fig. 10 is in a closing state, when the mechanism is opened, the driving crank arm shaft 6 is operated anticlockwise, the connecting crank arm two 503 drives the four-bar linkage to move, the pin shaft 505 firstly moves a section of idle stroke in the mounting hole 504 in the connecting crank arm one 501, then drives the connecting crank arm one 501 to rotate anticlockwise, when the connecting rod 502 moves to the position in fig. 12, the connecting rod 502 contacts with the driving crank arm shaft 6, and because the spring 803 is in the middle, the moving speed of the connecting crank arm two 503 is very fast, the connecting rod 502 rotates and swings around the connecting shaft of the connecting crank arm 502 and the connecting crank arm two 503, drives the connecting crank arm one 501 to rotate anticlockwise, and reaches the position shown in fig. 7 to stop, so as to complete the opening operation of the mechanism.
In the invention, the motor 4 selects a unidirectional rotation output motor, and the output shaft of the motor 4 rotates anticlockwise (a motor shaft cannot rotate clockwise) when seen from the direction of fig. 7, so that the first connecting crank arm 501 is driven to rotate anticlockwise all the time to realize the switching-on and switching-off processes of the mechanism, and the switching-on and switching-off processes of the mechanism can be manually operated (namely, the switching-on and switching-off can be performed immediately after the electric switching-on, the switching-off can be performed immediately after the electric switching-on, and the like) without mutual influence.
In addition, in practical application, the electric and manual two-station spring operating mechanism provided by the invention can rotationally drive the crank shaft 6 in a manual or electric mode, so that the switch crank shaft can be driven to be opened or closed, and meanwhile, the two-station spring operating mechanism needs to meet the following functions:
the mechanism provides a power source for the separating and closing two-station isolating switch and meets the separating and closing requirements of the switch, the isolating switch is provided with a separating brake position and a closing brake position, when the mechanism is separated, a contact is driven to drive inside the switch, and the crank arm swing angle theoretical value of the contact is driven to be 58 degrees; when the switch is positioned at the opening position and the closing position, the inside of the switch has an infinite structure, and the moving part of the switch has a certain weight and a certain speed during opening, so the moving part has a large moving inertia during movement, if the moving part cannot be kept at a preset position, impact is caused, the contact of the switch is damaged, and the mechanism is required to have an opening and closing limit in the inside to meet the movement requirement of the switch;
meanwhile, when the switch is switched on, the resistance of contact holding force and electrodynamic force counter force exists, so that the energy generated by the resistance of the contact holding force and the electrodynamic force counter force needs to be overcome when the mechanism is switched on, but the force value of a part of switching-on spring in the mechanism cannot be too large, otherwise, larger impact can be caused, the service lives of the mechanism and the switch are influenced, and the deflection radius can only be increased for ensuring the service life of the mechanism.
In summary, by means of the technical scheme of the invention, the electric and manual two-station spring operating mechanism provided by the invention can integrate the driving mechanism 5, the transmission mechanism 9 and the matched spring assembly 8 into the same closed air box, so that the purposes of integration, miniaturization and intelligent design are achieved, the number of required parts of the device is less, the structural design is simple, the cost of the device is lower, the cost is reduced by about 50% compared with the cost of conventional products in the market, and the economic benefit is considerable; the electric and manual two-station spring operating mechanism provided by the invention can realize the switching of the two stations by a manual or electric mode, and can ensure the switching characteristic requirement of the switch; the transmission design of the invention adopts gear transmission, and the gear transmission is suitable for short-distance transmission, has high transmission efficiency, high transmission precision and short transmission distance, thereby being capable of carrying out angle conversion under the cooperation of the first gear 901 and the second gear 902 to meet the angle requirements of opening and closing the switch crank arm; the electric and manual two-station spring operating mechanism provided by the invention is convenient to maintain and control, the cost is greatly reduced, and compared with the prior art, the forward and reverse movement can be realized only by unidirectional rotation of the motor.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. An electric and manual two-station spring operating mechanism comprises a front clamping plate (1), and is characterized in that a rear clamping plate (2) is arranged on one side of the front clamping plate (1), and the front clamping plate (1) is connected with the rear clamping plate (2) through a clamping plate supporting shaft (3);
a motor (4) is arranged on one side of the front clamping plate (1), a driving mechanism (5) is arranged at the output end of the motor (4), a driving crank shaft (6) is arranged on one side, far away from the motor (4), of the driving mechanism (5), the driving crank shaft (6) penetrates through the front clamping plate (1) and is connected with the rear clamping plate (2), two groups of driving crank arms (7) are arranged on the outer side of the circumference of the driving crank shaft (6), and a spring assembly (8) is arranged between the two groups of driving crank arms (7);
one side of the rear clamping plate (2) is provided with a transmission mechanism (9), and the transmission mechanism (9) is sleeved on the outer side of the circumference of the driving crank arm shaft (6).
2. The electric and manual two-station spring operating mechanism according to claim 1, wherein limiting grooves (10) are formed in two ends of one side of the driving crank arm (7), and limiting rods (11) matched with the limiting grooves (10) are symmetrically arranged between the front clamping plate (1) and the rear clamping plate (2) and close to one side of the driving crank arm (7).
3. The electric and manual two-position spring operating mechanism according to claim 1, wherein the driving mechanism (5) comprises a first connecting crank arm (501) arranged at the output end of the motor (4), a connecting rod (502) is arranged on one side of the first connecting crank arm (501), a second connecting crank arm (503) is arranged on one side, away from the first connecting crank arm (501), of the connecting rod (502), and the second connecting crank arm (503) is arranged on the outer circumferential side of the driving crank arm shaft (6).
4. The electric and manual two-station spring operating mechanism according to claim 3, wherein a mounting hole (504) is formed in one side of the first connecting crank arm (501), and a pin shaft (505) matched with the mounting hole (504) is arranged on one side, close to the first connecting crank arm (501), of the connecting rod (502).
5. The electric and manual two-station spring operating mechanism according to claim 2, wherein a first fixed shaft (12) is arranged between the two groups of driving crank arms (7), and a second fixed shaft (13) is arranged between the front clamping plate (1) and the rear clamping plate (2) and at one side far away from the limiting rod (11).
6. The electric and manual two-station spring operating mechanism according to claim 5, wherein the spring assembly (8) comprises a spring guide sleeve (801) which is inserted and arranged on the outer side of the circumference of the second fixed shaft (13), a spring guide rod (802) is arranged on one side, away from the second fixed shaft (13), of the spring guide sleeve (801), the spring guide rod (802) is inserted and arranged on the outer side of the circumference of the first fixed shaft (12), and springs (803) are arranged on the outer sides of the circumferences of the spring guide sleeve (801) and the spring guide rod (802).
7. The electric and manual two-position spring operating mechanism according to claim 1, wherein the transmission mechanism (9) comprises a first gear (901) arranged on one side of the rear clamping plate (2), a second gear (902) meshed with the first gear (901) is arranged on the outer side of the circumference of the first gear, one side of the driving crank arm shaft (6) is arranged at the center position of the first gear (901), and a connecting plate (903) is arranged on the side, away from the rear clamping plate (2), of the second gear (902).
8. The electric and manual two-position spring operating mechanism according to claim 7, wherein the two sides of the gear II (902) are respectively provided with a first limiting shaft (14) and a second limiting shaft (15) which are matched with the gear II.
9. The electric and manual two-station spring operating mechanism according to claim 8, wherein an arc-shaped groove (16) is formed in one side of the gear one (901), and a connecting shaft (17) matched with the arc-shaped groove (16) is arranged between the front clamping plate (1) and the rear clamping plate (2) and penetrates through the driving crank arm shaft (6).
10. The electric and manual two-position spring operating mechanism according to claim 9, wherein an output shaft (18) is arranged at the center of the second gear (902), and the output shaft (18) is located at one side of the rear clamping plate (2) away from the connecting plate (903).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310036008.2A CN115995358B (en) | 2023-01-10 | 2023-01-10 | Electric and manual two-station spring operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310036008.2A CN115995358B (en) | 2023-01-10 | 2023-01-10 | Electric and manual two-station spring operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115995358A true CN115995358A (en) | 2023-04-21 |
| CN115995358B CN115995358B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310036008.2A Active CN115995358B (en) | 2023-01-10 | 2023-01-10 | Electric and manual two-station spring operating mechanism |
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| Country | Link |
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| CN (1) | CN115995358B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281232A (en) * | 2000-08-22 | 2001-01-24 | 浙江华仪电力设备制造有限公司 | Operating mechanism using electric motor |
| EP3223290A1 (en) * | 2016-03-25 | 2017-09-27 | ABB Schweiz AG | A motor drive electrical apparatuses |
| CN108417416A (en) * | 2016-11-03 | 2018-08-17 | 许继电气股份有限公司 | A kind of spring operating mechanism link mechanism and spring operating mechanism |
| CN110993383A (en) * | 2019-11-28 | 2020-04-10 | 库柏爱迪生(平顶山)电子科技有限公司 | Three-station operating device for load switch |
| CN217061885U (en) * | 2022-03-15 | 2022-07-26 | 大其电力设备(温州)有限公司 | Three-station spring driving mechanism |
-
2023
- 2023-01-10 CN CN202310036008.2A patent/CN115995358B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281232A (en) * | 2000-08-22 | 2001-01-24 | 浙江华仪电力设备制造有限公司 | Operating mechanism using electric motor |
| EP3223290A1 (en) * | 2016-03-25 | 2017-09-27 | ABB Schweiz AG | A motor drive electrical apparatuses |
| CN108417416A (en) * | 2016-11-03 | 2018-08-17 | 许继电气股份有限公司 | A kind of spring operating mechanism link mechanism and spring operating mechanism |
| CN110993383A (en) * | 2019-11-28 | 2020-04-10 | 库柏爱迪生(平顶山)电子科技有限公司 | Three-station operating device for load switch |
| CN217061885U (en) * | 2022-03-15 | 2022-07-26 | 大其电力设备(温州)有限公司 | Three-station spring driving mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115995358B (en) | 2023-07-25 |
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