An electrically powered spring operating mechanism and method of operation

Abstract

The application provides an electric spring operating mechanism and an operating method. The mechanism comprises an output crank, a compression spring crank and a buffer. The output crank is in a special eight-shaped structure and is fixed to a non-cylindrical section of an output shaft. The compression spring crank is in a special fork-shaped structure and is sleeved on the output shaft. The output crank is located between two special plates of the compression spring crank. Two cantilever arms of the output crank are respectively provided with arc-shaped protrusions. Each arc-shaped protrusion contacts a corresponding buffer. The buffer applies a reaction force to the arc-shaped protrusions, and a side force component is generated. The component is transmitted to the plate wall of the compression spring crank through the output crank and is absorbed by the plate wall. Through the above design, the transmission structure is simplified, the size is reduced, the manufacturing cost is reduced, the adverse effect of the side force of the buffer on the transmission stability is effectively eliminated, and the reliability and service life of the mechanism are improved.

Description

Technical Field

[0001] This application belongs to the field of electric springs, and in particular relates to an electric spring operating mechanism and operating method. Background Technology

[0002] Fast-connecting switches are an important component of power systems. Their main function is to quickly disconnect the power supply to protect the power system in the event of a single-phase ground fault. The power source for the opening and closing operation of fast-connecting switches is generally an electric spring mechanism. Its core is that the motor stores energy and the spring releases energy to achieve the rapid opening or closing operation of the fault-connecting switch.

[0003] Currently, different types of electric spring operating mechanisms exist in the market as power sources for the opening and closing operations of fault grounding switches. Taking the closing process as an example, after the motor actuates, the spring energy storage module stores energy, compressing the spring. When the spring is compressed and moves around the spring mounting bracket to its shortest position, this position is called the "critical point." After passing this position, the spring can be released instantly and rapidly, driving the grounding switch to complete the closing operation. However, because the installation methods and applicable locations of fault grounding switches vary greatly, the electric spring operating mechanisms matched with them differ in appearance, transmission structure, and operating principle.

[0004] Existing electric spring mechanisms suffer from drawbacks such as large size, complex transmission structure, and high cost due to differences in appearance, transmission structure, and operating principle. In particular, the coordination between the output crank and the buffer in existing mechanisms is not optimized. The lateral force generated by the buffer can easily lead to transmission instability and accelerated wear of parts, thereby affecting the reliability and service life of the mechanism. Summary of the Invention

[0005] The purpose of this application is to overcome the defects in the prior art and provide an electric spring operating mechanism and operating method.

[0006] This application provides an electric spring operating mechanism, including an output crank arm, a compression spring crank arm, and a buffer; The output crank arm is a figure-eight shaped irregular structure, which is fixed to the non-cylindrical section of the output shaft; The compression spring crank arm is a fork-shaped irregular structure, which is fitted onto the output shaft, and the output crank arm is located between the two irregular plates of the compression spring crank arm; The outer sides of the two cantilever arms of the output crank arm are respectively provided with arc-shaped protrusions, and the arc-shaped protrusions respectively contact the buffer; The buffer applies a reaction force to the arc-shaped protrusion, and the reaction force generates a lateral component force. The lateral component force is transmitted to the plate wall of the compression spring crank arm through the output crank arm, and the plate wall of the compression spring crank arm absorbs the lateral component force.

[0007] Optionally, the output crank arm is a figure-eight shaped irregular structure, fixed to the non-cylindrical section of the output shaft, including: The end face of the output crank arm is provided with special marking points, which correspond to specific positions of the non-cylindrical section of the output shaft. The special marking points are used to ensure that the output crank arm is fitted onto the non-cylindrical section of the output shaft at a uniquely determined circumferential angle.

[0008] Optionally, the compression spring crank arm is a fork-shaped irregular structure, fitted onto the output shaft, including: A bearing is provided between the compression spring crank arm and the output shaft, and the compression spring crank arm can rotate freely relative to the output shaft through the bearing.

[0009] Optionally, the outer sides of the two cantilever arms of the output crank arm are respectively provided with arc-shaped protrusions, and the arc-shaped protrusions respectively contact the buffer, including: The arc-shaped protrusion is circular arc-shaped, and the circular arc shape matches the shape of the piston rod end of the buffer. The circular arc shape allows the arc-shaped protrusion to form line contact or surface contact with the piston rod end of the buffer.

[0010] Optionally, the compression spring crank arm is a fork-type irregular structure, including: The compression spring crank arm is welded together from two irregularly shaped plates and a cylindrical pin. The two irregularly shaped plates are fixed together by the cylindrical pin to form an integral clamping fork structure.

[0011] Optionally, the compression spring crank arm is a fork-shaped irregular structure, fitted onto the output shaft, and the output crank arm is located between the two irregular plates of the compression spring crank arm, including: A cylindrical pin is provided on the spring crank arm, and an arc-shaped groove is provided on the lower end face of the worm gear. The cylindrical pin is located in the arc-shaped groove, and the worm gear pushes the cylindrical pin through the arc-shaped groove to make the spring crank arm rotate around the output shaft.

[0012] Optionally, the output crank arm is a figure-eight shaped irregular structure, fixed to the non-cylindrical section of the output shaft, including: The non-cylindrical section of the output shaft has a polygonal cross-section, and the inner hole of the output crank arm is a polygonal hole that matches the polygonal cross-section. The polygonal cross-section and the polygonal hole cooperate to achieve circumferential fixation.

[0013] This application also provides a method for operating an electric spring operating mechanism, including: The output crank arm is fixed to the non-cylindrical section of the output shaft, and the output crank arm is a figure-eight shaped irregular structure. The spring crank arm is mounted on the output shaft. The spring crank arm has a fork-type irregular structure. The output crank arm is located between the two irregular plates of the spring crank arm. The arc-shaped protrusions on the outer sides of the two cantilever arms of the output crank arm respectively contact the buffer; The output shaft is driven to rotate, causing the output crank arm to drive the arc-shaped protrusion to contact the buffer. The buffer applies a reaction force to the arc-shaped protrusion, and the reaction force generates a lateral component force. The lateral force is transmitted to the plate wall of the compression spring crank arm through the output crank arm, and the plate wall of the compression spring crank arm absorbs the lateral force.

[0014] Optionally, the step of fixing the output crank arm to the non-cylindrical section of the output shaft includes: Align the special marking point on the end face of the output crank arm with a specific position on the non-cylindrical section of the output shaft, so that the output crank arm is fitted onto the non-cylindrical section of the output shaft at a uniquely determined circumferential angle.

[0015] Optionally, mounting the compression spring crank arm onto the output shaft includes: A bearing is provided between the compression spring crank arm and the output shaft, so that the compression spring crank arm can rotate freely relative to the output shaft through the bearing.

[0016] The beneficial effects of this application are: This application provides an electric spring operating mechanism, including an output crank arm, a compression spring crank arm, and a buffer; the output crank arm has an octagonal irregular structure and is fixed to the non-cylindrical section of the output shaft; the compression spring crank arm has a fork-type irregular structure and is fitted onto the output shaft, with the output crank arm located between two irregular plates of the compression spring crank arm; the outer sides of the two cantilever arms of the output crank arm are respectively provided with arc-shaped protrusions, which respectively contact the buffer; the buffer applies a reaction force to the arc-shaped protrusions, and the reaction force generates a lateral component force, which is transmitted to the plate wall of the compression spring crank arm through the output crank arm, and the plate wall of the compression spring crank arm absorbs the lateral component force. This application simplifies the transmission structure, reduces the overall size, and lowers the manufacturing cost by setting the output crank arm as an irregular V-shaped structure and setting arc-shaped protrusions on the outer sides of its two cantilever arms to contact the buffer respectively. This allows the lateral component of the buffer's reaction force on the arc-shaped protrusions to be transmitted to the plate wall of the compression spring crank arm through the output crank arm and absorbed by it. At the same time, it effectively eliminates the adverse effects of the buffer's lateral force on the transmission stability and improves the reliability and service life of the mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the electric spring operating mechanism of this application; Figure 2 This is a schematic diagram of the first internal structure of the electric spring operating mechanism of this company. Figure 3 This is a schematic diagram of the second internal structure of the Ben Shen electric spring operating mechanism; Figure 4 This is a schematic diagram of the third internal structure of the electric spring operating mechanism of this company. Figure 5 This is a schematic diagram of the gears in the electric spring operating mechanism of Benshen. Figure 6 This is a schematic diagram of the operation process of Benshen's electric spring operating mechanism. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, the embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] This application provides an electric spring operating mechanism for use in the power system field, which solves the problems of large size, complex transmission structure and high cost of existing electric spring mechanisms.

[0020] The electric spring operating mechanism provided in this application is based on the principle of motor energy storage and spring energy release to achieve rapid opening or closing of the fault grounding switch. This mechanism features a simple structure and reliable operation, enabling rapid opening or closing of the fault grounding switch. GIS (Gas Insulated Switchgear) is a gas-insulated, fully enclosed combined electrical appliance consisting of a circuit breaker, disconnector, grounding switch, voltage transformer, current transformer, surge arrester, busbar, and outgoing terminals. The rapid grounding mechanism is the power source for the grounding switch, and its position and reliability directly determine the position and reliability of the grounding switch. Furthermore, manual slow opening and closing operations can be performed using tooling through the fixed pin process hole, the inner hole of the spring base, and the built-in threaded hole of the spring rod, solving the problem of the electric spring mechanism being inoperable under no-load conditions and facilitating the installation, commissioning, and maintenance of the electric spring operating mechanism. The threaded hole on the end face of the spring base allows adjustment of the initial spring compression by screwing in a screw, changing the spring operating power to meet the varying operating power requirements of different fault grounding switches, thus improving the adaptability of the electric spring operating mechanism.

[0021] Please refer to Figures 1-5 As shown, the mechanism includes: output crank arm 22, compression spring crank arm 24, and buffer.

[0022] Figures 1-5In the middle, there are: 1. Vent valve, 2. Opening / closing indicator observation window, 3. Manual operation hole, 4. Round hole position, 5. Mounting base plate, 6. Output shaft, 7. Relay, 8. Heater, 9. Motor, 10. Spur gear pair, 11. Transition nut, 12. Counter, 13. Auxiliary switch, 14. Mounting plate, 15. L-shaped mounting plate, 16. Bevel gear, 17. Opening / closing indicator shaft, 18. Micro switch, 19. Cam, 20. Counter pull rod, 21. Bearing, 22. Output crank arm, 23. Cylindrical pin, 24. Compression spring crank arm.

[0023] The mechanism consists of a mechanism box, a mounting base plate 5, a transmission module, a secondary module, and other parts. The transmission module and the secondary module are mounted on the mounting base plate 5. The mechanism box is fastened to the mounting base plate 5. A sealing gasket is installed on the mounting surface to ensure its protective function. The mechanism box is equipped with a manual operation hole 3, a separation and opening indicator observation window 2, and a vent valve 1.

[0024] The mounting base plate 5 is an irregularly shaped casting structure. Its central hole position can be divided into left and right parts. Vertical plates are set in the left and right vertical directions of the central hole. The vertical plates are equipped with reinforcing structures. The top plate is installed on the top of the vertical plates on both sides. The mounting base plate 5 has groove structures in the left and right directions of the central hole. The secondary wiring module is installed in the groove structure of the mounting base plate 5.

[0025] The transmission module includes a power module, an output shaft 6 module, and an energy storage module. The power module includes a motor 9 and a gear pair. The motor 9 mounting plate 14 is mounted and fixed on the outside of the right side upright plate of the mounting base plate 5. The motor 9 is placed on the upper side of the top plate. The motor 9 and the motor 9 mounting plate 14 are fastened with fasteners. The motor 9 shaft is placed parallel to the worm shaft. A pair of spur gear pairs 10 are respectively connected and fixed to the motor 9 shaft and the right end of the worm.

[0026] The worm gear is installed at the through hole of the mounting base plate 5, and a bearing 21 structure is provided at the mounting base plate. A limit plate is provided on the outer side of the left mounting plate.

[0027] The output shaft 6 module includes an output shaft 6, a worm gear, an output crank arm 22, and a compression spring crank arm 24. The output shaft 6 is mounted on the mounting base plate 5 and is set perpendicular to the worm gear. The output shaft 6 extends out of the mounting base plate 5, and its structure and extension length are set according to the requirements of the fault grounding switch. The middle section of the output shaft 6 is a non-cylindrical structure used to fix the output crank arm 22.

[0028] The worm gear, output crank arm 22, and compression spring crank arm 24 are all mounted on the output shaft 6. Bearings 21 are provided inside the worm gear and the output shaft 6. An arc groove is provided on the lower end face of the worm gear, and the worm gear and worm satisfy their kinematic relationship.

[0029] The energy storage module includes a spring rod, a spring, a spring base, a limiting plate, a mounting plate 14, and a fixing pin. One end of the spring rod has a mounting hole and is positioned in the middle of the compression spring crank arm 24. A cylindrical pin 23 passes through the compression spring crank arm 24 and the spring rod. The other end of the cylindrical pin 23 has a limiting structure, and the end face of the spring rod shaft has an internal thread. The spring base is a sleeve-type structure with a mounting and fixing structure at one end, which is fitted onto the fixing pin. The fixing pin is inserted into the circular hole 4 of the mounting base plate 5, with a bushing structure between them. The other end of the fixing pin has a thread, and a process hole is opened in the middle section of the fixing pin.

[0030] The spring base has a threaded hole on its end face, and the initial compression of the spring can be adjusted by screwing in a screw to change the spring's operating work.

[0031] The round shaft portion of the spring rod is inserted into the spring base and reciprocates along the spring base. The spring is fitted onto the spring base and the spring rod, with limiting plates at both ends.

[0032] The fixed pin process hole, the inner hole of the spring base, and the built-in threaded hole of the spring rod can be manually opened and closed slowly by means of tooling.

[0033] The spring mounting plate 14 is an irregularly shaped plate. One side of the mounting plate 14 is fixed to the mounting base plate 5. Relays 7 are installed on the wing plates on both sides of the mounting plate 14. The mounting plate 14 has holes that pass through the round holes of the mounting base plate 5. Nuts are tightened and limited.

[0034] The secondary module includes an auxiliary switch 13, a micro switch 18, and an L-shaped mounting plate 15. The upper end of the output shaft 6 is provided with a slot structure. The L-shaped mounting plate 15 is fixed on the top plate and is symmetrical about the output shaft 6. The bevel gear 16 is installed in the slot of the output shaft 6. The L-shaped mounting plate 15 has two bevel gears 16 installed at each position, and they are meshed with the bevel gears 16 at the output shaft 6. The auxiliary switch 13 is installed and fixed on the outside of the left L-shaped mounting plate 15, and its rotating shaft is fixed to the left bevel gear 16. The open / close indicator shaft 17 is fixed to the right bevel gear 16. The open / close indicator shaft 17 is fixed to the cam 19. The micro switch 18 is fixed on the outside of the right L-shaped mounting plate 15. When the circuit is open or closed, the cam 19 causes the corresponding micro switch 18 to be switched by pressure.

[0035] The output crank arm 22 is a figure-eight shaped irregular structure, which is fixed to the non-cylindrical section of the output shaft 6.

[0036] The output crank arm 22 has a V-shaped irregular structure and is fixed to the non-cylindrical section of the output shaft 6, located in the middle of the compression spring crank arm 24. The end face of the output crank arm 22 is provided with special markings, which correspond to specific positions on the non-cylindrical section of the output shaft 6. These markings ensure that the output crank arm 22 is fitted onto the non-cylindrical section of the output shaft 6 at a uniquely defined circumferential angle, thereby ensuring that the relative positional relationship between the output crank arm 22 and the output shaft 6 meets the transmission requirements.

[0037] The non-cylindrical section of the output shaft 6 has a polygonal cross-section, and the inner hole of the output crank arm 22 is a polygonal hole that matches the polygonal cross-section. The polygonal cross-section and the polygonal hole cooperate to achieve circumferential fixation.

[0038] The compression spring crank arm 24 is a fork-shaped irregular structure, which is fitted onto the output shaft 6, and the output crank arm 22 is located between the two irregular plates of the compression spring crank arm 24.

[0039] The spring crank arm 24 is a fork-shaped structure, which is mounted on the output shaft 6. A bearing 21 is provided between the spring crank arm 24 and the output shaft 6, and the spring crank arm 24 can rotate freely relative to the output shaft 6 through the bearing 21.

[0040] The spring crank arm 24 is welded together from two irregular plates and a cylindrical pin 23. The two irregular plates are fixed by welding the cylindrical pin 23 to form an integral clamping fork structure. One cylindrical pin 23 is welded to the middle of the larger end face of the plate, and the other cylindrical pin 23 is welded to the upper mounting plate 14.

[0041] A cylindrical pin 23 is provided on the spring crank arm 24, and an arc-shaped groove is provided on the lower end face of the worm gear. The cylindrical pin 23 is located in the arc-shaped groove, and the worm gear pushes the cylindrical pin 23 through the arc-shaped groove to make the spring crank arm 24 rotate around the output shaft 6. The other end of the spring crank arm 24 is provided with a through mounting hole.

[0042] Taking closing as an example, after receiving the closing command, the closing relay 7 is activated, and the motor 9 rotates, driving the worm gear to rotate through a set of spur gears. When the worm gear rotates, it drives the cylindrical pin 23 on the spring crank arm 24 through its arc groove, causing the spring crank arm 24 to rotate around the output shaft 6. The spring rod moves along the spring base and compresses the spring. When the spring base, spring crank arm 24, and spring rod are collinear, the spring is at its shortest, which is called the "dead point" position. The worm gear continues to rotate, the spring releases its capacity, the spring crank arm 24 continues to rotate, and the cylindrical pin 23 on the spring crank arm 24 contacts the inner side of the output crank arm 22, driving the output crank arm 22 and the output shaft 6 to rotate, thus realizing the closing operation.

[0043] At the same time, the bevel gear 16 at the top of the output shaft 6 rotates, driving the auxiliary switch 13 and the micro switch 18 in the closed position to switch, and the motor 9 is de-energized.

[0044] Arc-shaped protrusions are respectively provided on the outer sides of the two cantilevers of the output crank arm 22, and the arc-shaped protrusions are respectively in contact with the dampers. Arc-shaped protrusion structures are provided on the outer sides of the two cantilevers of the output crank arm 22, which are respectively in contact with the opening damper and the closing damper. The arc-shaped protrusion is in a circular arc shape, and the circular arc shape matches the shape of the end of the piston rod of the damper. The circular arc shape enables the arc-shaped protrusion and the end of the piston rod of the damper to form line contact or surface contact, which helps eliminate the lateral force on the piston rod of the damper.

[0045] The damper exerts a reaction force on the arc-shaped protrusion, the reaction force generates a lateral component force, the lateral component force is transmitted to the plate wall of the compression spring crank arm 24 through the output crank arm 22, and the plate wall of the compression spring crank arm 24 absorbs the lateral component force.

[0046] The transmission of the present application adopts worm gear and worm transmission. Compared with the combined transmission mode of cam 19 gear train in some existing products, the present application has simple structure and reliable operation. The transmission part is centrally installed on the mounting base plate, with compact installation, small volume and low cost. Meanwhile, the electric spring operating mechanism can meet the requirements of a fault earthing switch, realize opening and closing operations, has the characteristics of simple and compact structure and reliable operation, can adjust the operating work of the mechanism, improves the matching with the fault earthing switch, can also perform slow opening and slow closing operations, and solves the problem that the electric spring mechanism cannot be operated when there is no load.

[0047] Please refer to Figure 6 , the present application provides an operating method of an electric spring operating mechanism, comprising: S101, fixedly connecting an output crank arm to a non-cylindrical section of an output shaft, wherein the output crank arm is an splayed special-shaped structure.

[0048] The output crank arm 22 is a special-shaped structural component in an splayed shape, the shape of which is similar to that of the Chinese character "八", and has two outwardly extending cantilevers. The non-cylindrical section of the output shaft 6 refers to a section of non-circular cross-sectional area on the output shaft 6, and the cross-sectional shape of this area can be square, hexagonal or other polygons, so as to ensure that a reliable circumferential fixed connection is formed between the output shaft 6 and the output crank arm 22, and prevent relative rotation.

[0049] The output crank arm 22 is fixedly connected to the non-cylindrical section of the output shaft 6, so that the output crank arm 22 is fixed on the non-cylindrical section by means of key connection, spline connection or interference fit, so that the output crank arm 22 can rotate together with the output shaft 6.

[0050] Arc-shaped protrusion structures are provided on the outer sides of the two cantilevers of the output crank arm 22, and the arc-shaped protrusion structures are respectively in contact with the opening damper and the closing damper, which helps eliminate the lateral force on the piston rod of the dampers.

[0051] When the output crank arm 22 rotates, the arc-shaped protrusion on the outer side of its cantilever will contact the corresponding buffer. The buffer applies a reaction force to the arc-shaped protrusion, which generates a lateral component force. Since the output crank arm 22 is a figure-eight shaped irregular structure, the geometry of its cantilever can effectively disperse and transmit this lateral component force, thereby reducing the direct impact on the output shaft 6.

[0052] S102. The compression spring crank arm is mounted on the output shaft. The compression spring crank arm is a fork-shaped irregular structure. The output crank arm is located between the two irregular plates of the compression spring crank arm.

[0053] The compression spring crank arm 24 is a fork-shaped structure, which is welded together from two irregularly shaped plates and a cylindrical pin 23. Its overall shape is similar to a clamp or fork, and it has two parallel plate-shaped arms. The compression spring crank arm 24 is fitted onto the output shaft 6, that is, the center hole of the compression spring crank arm 24 passes through the output shaft 6, so that the compression spring crank arm 24 can rotate around the output shaft 6.

[0054] The output crank arm 22 is located between the two irregular plates of the compression spring crank arm 24, which makes the output crank arm 22 clamped in the space formed by the two plate walls of the compression spring crank arm 24. This arrangement allows the output crank arm 22 to contact and interact with the plate walls of the compression spring crank arm 24 when it rotates.

[0055] One cylindrical pin 23 of the compression spring crank arm 24 is welded to the middle of the larger end face of the plate, and the other cylindrical pin 23 is welded to the upper mounting plate 14. The cylindrical pin 23 is set in the arc groove on the lower end face of the worm gear. When the worm gear rotates, it drives the cylindrical pin 23 through the arc groove, thereby driving the compression spring crank arm 24 to rotate around the output shaft 6.

[0056] A bearing 21 structure is provided between the compression spring crank arm 24 and the output shaft 6, so that the compression spring crank arm 24 can rotate freely relative to the output shaft 6 through the bearing 21, thereby reducing friction and improving transmission efficiency.

[0057] S103, make the arc-shaped protrusions on the outer sides of the two cantilever arms of the output crank arm contact the buffer respectively.

[0058] The buffers include a tripping buffer and a closing buffer, which correspond to the buffering requirements during tripping and closing operations, respectively. The outer sides of the two cantilever arms of the output crank arm 22 are provided with arc-shaped protrusions, which contact the corresponding buffers during the rotation of the output crank arm 22.

[0059] For example, during the closing process, the arc-shaped protrusion on the outer side of one cantilever of the output crank arm 22 contacts the closing buffer; during the opening process, the arc-shaped protrusion on the outer side of the other cantilever contacts the opening buffer. This contact is to absorb residual kinetic energy at the end of the operation, slow down the movement speed, and prevent mechanical impact. The arc-shaped surface of the protrusion forms a smooth contact with the contact surface of the buffer, which helps to evenly distribute pressure and reduce wear.

[0060] S104. Drive the output shaft to rotate, so that the output crank arm drives the arc-shaped protrusion to contact the buffer. The buffer applies a reaction force to the arc-shaped protrusion, and the reaction force generates a lateral component force.

[0061] When the mechanism receives a closing or opening command, the motor 9 is energized and rotates, which drives the worm gear to rotate through the gear pair. The worm gear drives the worm wheel to rotate, and the worm wheel drives the cylindrical pin 23 on the spring crank arm 24 through its arc groove, causing the spring crank arm 24 to rotate around the output shaft 6, thereby driving the output shaft 6 to rotate.

[0062] When the output shaft 6 rotates, the output crank arm 22, which is fixed to its non-cylindrical section, rotates accordingly. The arc-shaped protrusion on the outer side of the cantilever of the output crank arm 22 gradually approaches and eventually contacts the buffer. The buffer is usually equipped with damping elements such as hydraulic oil or springs. When it is squeezed, it generates a reaction force, which acts perpendicularly to the contact surface of the buffer on the arc-shaped protrusion.

[0063] Due to the arc shape and contact angle of the protrusion, the reaction force is not entirely along the direction of movement of the output crank arm 22, but is decomposed into a lateral component perpendicular to the direction of movement of the output crank arm 22. If this lateral component is not controlled, it may cause the output crank arm 22 or the output shaft 6 to bear unnecessary lateral loads, affecting the smoothness and lifespan of the transmission.

[0064] S105, the lateral force is transmitted to the plate wall of the compression spring crank arm through the output crank arm.

[0065] Since the output crank arm 22 is located between the two irregular plates of the compression spring crank arm 24, when the output crank arm 22 is subjected to the lateral component of the buffer reaction force, the lateral component of the force will be transmitted to the plate wall of the adjacent compression spring crank arm 24 through the cantilever or main structure of the output crank arm 22.

[0066] Specifically, under the action of lateral force, the output crank arm 22 undergoes a slight lateral displacement or deformation, thereby contacting one of the plate walls of the compression spring crank arm 24 and applying the lateral force to that plate wall. The plate wall of the compression spring crank arm 24, as a force-bearing component, receives the lateral component force from the output crank arm 22. This transmission path utilizes the clamping fork structure of the compression spring crank arm 24 to transfer the lateral force that might originally act on the output shaft 6 to the compression spring crank arm 24, thereby protecting the output shaft 6 from unnecessary lateral loads.

[0067] S106, The plate wall of the compression spring crank arm absorbs the lateral component force.

[0068] The plate wall of the compression spring crank arm 24 has a certain rigidity and elasticity, and can withstand and absorb the lateral force from the output crank arm 22. The compression spring crank arm 24 is a clamp-type irregular structure, and its two irregular plate walls are connected by welding to form an integral frame, which has good structural strength and bending resistance.

[0069] When a lateral force acts on the plate wall, the plate wall will undergo a slight elastic deformation, thereby converting the energy of the lateral force into elastic potential energy for storage, or dissipating it through vibration or other means during subsequent motion.

[0070] This absorption effect prevents lateral forces from being directly transmitted to the output shaft 6 or other precision transmission components, reducing the adverse effects of lateral forces on the overall stability of the mechanism and ensuring the smoothness and reliability of the transmission process. Simultaneously, since the compression spring crank arm 24 plays a crucial role in energy storage and release, its ability to absorb lateral forces also enhances the anti-interference performance of the entire operating mechanism under high-speed motion.

[0071] A person skilled in the art, possessing prior knowledge of all common technical knowledge in the field of the invention prior to the filing date or priority date, and capable of applying conventional experimental methods prior to that date, can, under the guidance of this application, improve and implement the solution based on their own abilities. Typical known structures or methods should not hinder a person skilled in the art from implementing this application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the structure of this application; these should also be considered within the scope of protection of this application, and will not affect the effectiveness or practicality of the application.

Claims

1. An electric spring operating mechanism, characterized in that, Includes output crank arm, spring crank arm, and buffer; The output crank arm is a figure-eight shaped irregular structure, which is fixed to the non-cylindrical section of the output shaft; The compression spring crank arm is a fork-shaped irregular structure, which is fitted onto the output shaft, and the output crank arm is located between the two irregular plates of the compression spring crank arm; The outer sides of the two cantilever arms of the output crank arm are respectively provided with arc-shaped protrusions, and the arc-shaped protrusions respectively contact the buffer; The buffer applies a reaction force to the arc-shaped protrusion, and the reaction force generates a lateral component force. The lateral component force is transmitted to the plate wall of the compression spring crank arm through the output crank arm, and the plate wall of the compression spring crank arm absorbs the lateral component force.

2. The electric spring operating mechanism according to claim 1, characterized in that, The output crank arm has a figure-eight shaped irregular structure and is fixed to the non-cylindrical section of the output shaft, including: The end face of the output crank arm is provided with special marking points, which correspond to specific positions of the non-cylindrical section of the output shaft. The special marking points are used to ensure that the output crank arm is fitted onto the non-cylindrical section of the output shaft at a uniquely determined circumferential angle.

3. The electric spring operating mechanism according to claim 1, characterized in that, The compression spring crank arm is a fork-shaped irregular structure, fitted onto the output shaft, including: A bearing is provided between the compression spring crank arm and the output shaft, and the compression spring crank arm can rotate freely relative to the output shaft through the bearing.

4. The electric spring operating mechanism according to claim 1, characterized in that, The outer sides of the two cantilever arms of the output crank arm are respectively provided with arc-shaped protrusions, which respectively contact the buffer, including: The arc-shaped protrusion is circular arc-shaped, and the circular arc shape matches the shape of the piston rod end of the buffer. The circular arc shape allows the arc-shaped protrusion to form line contact or surface contact with the piston rod end of the buffer.

5. The electric spring operating mechanism according to claim 1, characterized in that, The compression spring crank arm is a clamp-fork type irregular structure, including: The compression spring crank arm is welded together from two irregularly shaped plates and a cylindrical pin. The two irregularly shaped plates are fixed together by the cylindrical pin to form an integral clamping fork structure.

6. The electric spring operating mechanism according to claim 1, characterized in that, The compression spring crank arm is a fork-type irregular structure, fitted onto the output shaft. The output crank arm is located between the two irregular plates of the compression spring crank arm, including: A cylindrical pin is provided on the spring crank arm, and an arc-shaped groove is provided on the lower end face of the worm gear. The cylindrical pin is located in the arc-shaped groove, and the worm gear pushes the cylindrical pin through the arc-shaped groove to make the spring crank arm rotate around the output shaft.

7. The electric spring operating mechanism according to claim 1, characterized in that, The output crank arm has a figure-eight shaped irregular structure and is fixed to the non-cylindrical section of the output shaft, including: The non-cylindrical section of the output shaft has a polygonal cross-section, and the inner hole of the output crank arm is a polygonal hole that matches the polygonal cross-section. The polygonal cross-section and the polygonal hole cooperate to achieve circumferential fixation.

8. A method for operating an electric spring operating mechanism, characterized in that, include: The output crank arm is fixed to the non-cylindrical section of the output shaft, and the output crank arm is a figure-eight shaped irregular structure. The spring crank arm is mounted on the output shaft. The spring crank arm has a fork-type irregular structure. The output crank arm is located between the two irregular plates of the spring crank arm. The arc-shaped protrusions on the outer sides of the two cantilever arms of the output crank arm respectively contact the buffer; The output shaft is driven to rotate, causing the output crank arm to drive the arc-shaped protrusion to contact the buffer. The buffer applies a reaction force to the arc-shaped protrusion, and the reaction force generates a lateral component force. The lateral force is transmitted to the plate wall of the compression spring crank arm through the output crank arm, and the plate wall of the compression spring crank arm absorbs the lateral force.

9. The operating method of the electric spring operating mechanism according to claim 8, characterized in that, The non-cylindrical section for fixing the output crank arm to the output shaft includes: Align the special marking point on the end face of the output crank arm with a specific position on the non-cylindrical section of the output shaft, so that the output crank arm is fitted onto the non-cylindrical section of the output shaft at a uniquely determined circumferential angle.

10. The operating method of the electric spring operating mechanism according to claim 8, characterized in that, The process of mounting the compression spring crank arm onto the output shaft includes: A bearing is provided between the compression spring crank arm and the output shaft, so that the compression spring crank arm can rotate freely relative to the output shaft through the bearing.

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