Energy feedback device of a safety elevator and monitoring system thereof

Abstract

This invention relates to the field of energy utilization and provides a safe energy feedback device and its monitoring system for elevators. The device includes a base, on which an elevator traction machine and a generator are fixedly connected. A second gear is fixedly connected to the output end of the elevator traction machine, and a drive shaft is fixedly connected to the input end of the generator. A first gear is rotatably connected to the base, and the first and second gears mesh. A first toothed engagement member is fixedly connected to the first gear, and a second toothed engagement member is slidably connected to the drive shaft. An elastic element is fixedly connected to the drive shaft, and the elastic element and the second toothed engagement member abut against each other. The drive shaft passes through the second toothed engagement member, and a second inclined block is fixedly connected to the drive shaft. An extension tooth is slidably connected inside the first toothed engagement member. An oiling assembly is connected to the base, including an oil dispensing assembly and an anti-splashing oil application assembly. This invention achieves stepped buffer deceleration, automatic pumping lubrication, and targeted oil application and reset, solving the problems of large deceleration impact, insufficient lubrication, and lubricating oil contamination in existing structures.

Description

Technical Field

[0001] This invention relates to the field of energy utilization technology, specifically to an energy feedback device and its monitoring system for a safety elevator. Background Technology

[0002] Utility model patent CN223879230U discloses an energy-saving elevator energy feedback device. A generator is fixedly connected to the upper end of the base plate. A first drive shaft is sleeved on the outer surface of the generator. A fixed collar is fixedly connected to the outer surface of the first drive shaft. A first protective ring is slidably connected to the outer surface of the first drive shaft. A spring is fixedly connected to the outer surfaces of the fixed collar and the first protective ring. A second protective ring is provided at the upper end of the base plate. When the elevator is controlled to perform an emergency stop, the first drive shaft gradually decreases in speed due to inertia. When the second protective ring is locked, the first protective ring rotates along the inclined surface of the second protective ring, pushing the spring to contract during rotation and generating a displacement. Through the sliding contraction of the first protective ring during rotation, the generator output shaft is prevented from abruptly stopping due to an emergency stop, thus avoiding severe wear and extending the service life of the device.

[0003] However, the tooth length of the first protective ring in the above patent is fixed, and the second protective ring cannot perform gradient deceleration. If the deceleration at the generator input end is too fast, it is very easy to induce axial rubbing between rotating parts and stationary parts, which can easily damage bearings and other components. In addition, friction occurs between the first and second protective rings during their relative movement. Without proper lubrication, the first and second protective rings are prone to rapid wear. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention aims to provide an energy feedback device and its monitoring system for a safe elevator. To solve these problems, this invention employs the following technical solution: An energy feedback device for a safety elevator includes a base, on which an elevator traction machine and a generator are fixedly connected. A second gear is fixedly connected to the output end of the elevator traction machine, and a drive shaft is fixedly connected to the input end of the generator. A first gear is rotatably connected to the base, and the first gear and the second gear mesh. A first toothed engagement member is fixedly connected to the first gear, and a second toothed engagement member is slidably connected to the drive shaft. An elastic element is fixedly connected to the drive shaft, and the elastic element and the second toothed engagement member abut against each other. The drive shaft passes through the second toothed engagement member, and a second inclined block is fixedly connected to the drive shaft. An extended toothed member is slidably connected in the first toothed engaging member, the extended toothed member is connected to the inner wall of the first toothed engaging member through the second elastic element, a locking groove is formed on the extended toothed member, a first inclined surface block is fixedly connected to the extended toothed member, the first inclined surface block extends to the outside of the first toothed engaging member, a locking strip is slidably connected in the first toothed engaging member, the locking strip is connected to the inner wall of the first toothed engaging member through the third elastic element, the locking strip abuts against the extended toothed member, and the second toothed engaging member and the first toothed engaging member are engaged with each other; An oiling assembly is connected to the base, and the oiling assembly includes an oil output assembly and an anti-splashing oil wiping assembly.

[0005] Optionally, the oil output assembly includes an oil reservoir, the oil reservoir is fixedly connected to the base, an oil storage cavity and an oil output cavity are formed on the oil reservoir, the bottom wall of the oil storage cavity communicates with the top wall of the oil output cavity through a connecting passage, the oil output cavity communicates with the outer wall of the oil reservoir, the oil storage cavity is filled with lubricating oil, a bent oil output pipe communicating with the oil output cavity is fixedly connected to the outer wall of the oil reservoir, an oil pumping member is slidably connected to the inner wall of the oil output cavity, the oil pumping member extends to the outside of the oil reservoir, a movable frame is fixedly connected to one end of the oil pumping member located outside the oil reservoir, a strip-shaped hole is formed on the movable frame, and the second toothed engaging member extends into the strip-shaped hole.

[0006] Optionally, the anti-splashing oil wiping assembly includes an inflator, a gas delivery pipe and a control cylinder, the inflator and the control cylinder are both fixedly connected to the base, one end of a gas pumping rod slidably connected to the inflator is fixedly connected to the movable frame, one end of the gas delivery pipe is fixedly connected to the gas outlet of the inflator, the other end of the gas delivery pipe communicates with the inner wall of the control cylinder, a piston assembly is slidably connected to the inner wall of the control cylinder, the piston assembly is connected to the inner wall of the control cylinder through the fourth elastic element, a gas hole is formed on the piston assembly, the lower end of the piston assembly extends below the control cylinder, and an oil applying member is fixedly connected to the lower end of the piston assembly.

[0007] Optionally, a damping ring is sleeved on the piston assembly.

[0008] Optionally, balls are rollingly connected to two opposite inner walls of the strip-shaped hole.

[0009] Optionally, the material of the oil applying member includes sponge.

[0010] Optionally, the oil pumping member is in a U-shape.

[0011] Optionally, the oil applying member is arc-shaped, and the oil applying member is located above the first toothed engaging member and the second toothed engaging member.

[0012] Optionally, the outer diameter of the second gear is larger than the outer diameter of the first gear.

[0013] A monitoring system for the energy feedback device of a safety elevator is provided, which is used to monitor the energy feedback device of the safety elevator, including: a traction machine status monitoring module, a lubricating oil balance monitoring module, a generator monitoring module, a battery management system, and a remote transmission module.

[0014] The present invention has the following beneficial effects: Through the linkage of the first and second toothed engagement parts, the inclined block, the extended toothed parts and the locking bar, the basic engagement buffers the deceleration during emergency stop, and then triggers the extension of the extended tooth to lock, forming a step-like deceleration of "buffering first and then strengthening", which avoids excessive bearing stress, rubbing, impact and shortened life caused by forced emergency stop. The reciprocating motion of the second toothed meshing part during emergency stop drives the oil pump, periodically opening the oil storage chamber to the oil outlet chamber channel, and spraying lubricating oil through the curved oil outlet pipe to the meshing point, realizing automatic oil supply during meshing friction, reducing dry friction on the tooth surface, and reducing the risk of wear, tooth breakage, jamming and abnormal noise. The movable frame drives the air cylinder to drive the piston assembly, which moves the oiling part to the meshing point to receive and evenly apply lubricating oil, preventing splashing and contamination. After stopping, the oil pump part automatically seals the channel, and the piston assembly resets, causing the oiling part to disengage, avoiding continuous oil leakage and additional running resistance. Attached Figure Description

[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the monitoring system structure of an energy feedback device for a safety elevator according to the present invention; Figure 2 This is a schematic diagram of the structure of an energy feedback device for a safety elevator according to the present invention; Figure 3 This is a schematic diagram of the energy feedback device for a safety elevator according to the present invention from another angle; Figure 4 This is a cross-sectional view of the oil reservoir and control cylinder in this invention; Figure 5 This is a schematic diagram of the structure of the first toothed engagement member, the second toothed engagement member, and the transmission shaft in this invention. Figure 6 This is a schematic diagram of the structure of the first toothed engagement member in this invention; Figure 7 This is a schematic diagram of the extended toothed component in this invention; Figure 8 This is a schematic diagram of the movable frame and the air cylinder in this invention; Figure 9This is a schematic diagram of the pore structure in this invention.

[0017] Reference numerals: 1. Base; 2. Elevator traction machine; 211. Gear II; 3. First toothed engagement piece; 31. Gear I; 4. Generator; 41. Drive shaft; 5. Second toothed engagement piece; 6. Elastic element I; 7. First inclined block; 8. Second inclined block; 9. Extension gear; 10. Elastic element II; 11. Locking groove; 12. Locking strip; 13. Elastic element III; 14. Oil reservoir; 15. Oil pump; 16. Oil storage chamber; 17. Connecting channel; 18. Oil outlet chamber; 19. Bent oil outlet pipe; 20. Movable frame; 201. Strip-shaped hole; 202. Ball bearing; 21. Oiling component; 22. Air cylinder; 23. Air supply pipe; 24. Control cylinder; 25. Piston assembly; 251. Air hole; 26. Elastic element IV. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] like Figures 2-9As shown, an energy feedback device for a safety elevator includes a base 1, an elevator traction machine 2 and a generator 4 fixedly connected to the base 1, a gear 211 fixedly connected to the output end of the elevator traction machine 2, a drive shaft 41 fixedly connected to the input end of the generator 4, a gear 31 rotatably connected to the base 1, the gear 31 meshing with the gear 211, a first toothed engagement member 3 fixedly connected to the gear 31, a second toothed engagement member 5 slidably connected to the drive shaft 41, an elastic element 6 fixedly connected to the drive shaft 41, the elastic element 6 abutting against the second toothed engagement member 5, the drive shaft 41 passing through the second toothed engagement member 5, and a second inclined block 8 fixedly connected to the drive shaft 41. The drive shaft 41 is provided with a spline section, and the second toothed engagement member 5 is provided with a corresponding spline hole, so that it can slide axially relative to the drive shaft 41, but rotate synchronously with the drive shaft 41 in the circumferential direction.

[0022] An extension tooth 9 is slidably connected inside the first toothed engagement member 3. The extension tooth 9 is connected to the inner wall of the first toothed engagement member 3 through an elastic element 2 10. A locking groove 11 is provided on the extension tooth 9. A first inclined block 7 is fixedly connected to the extension tooth 9. The first inclined block 7 extends to the outside of the first toothed engagement member 3. A locking strip 12 is slidably connected inside the first toothed engagement member 3. The locking strip 12 is connected to the inner wall of the first toothed engagement member 3 through an elastic element 3 13. The locking strip 12 abuts against the extension tooth 9. The second toothed engagement member 5 and the first toothed engagement member 3 bite each other. Preferably, the locking bar 12 is a solid metal structure, thereby increasing its mass and centrifugal force. Rollers are provided on the locking bar 12 so that the locking bar 12 can smoothly disengage from the locking groove 11.

[0023] The base 1 is connected to an oiling component, which includes an oil dispensing component and an anti-splashing oil application component.

[0024] Based on the aforementioned scheme, in some embodiments, the oil outlet assembly includes an oil reservoir 14, which is fixedly connected to the base 1. The oil reservoir 14 has an oil storage chamber 16 and an oil outlet chamber 18. The bottom wall of the oil storage chamber 16 is connected to the top wall of the oil outlet chamber 18 through a connecting channel 17. The oil outlet chamber 18 is connected to the outer wall of the oil reservoir 14. The oil storage chamber 16 is filled with lubricating oil. A curved oil outlet pipe 19 connected to the oil outlet chamber 18 is fixedly connected to the outer wall of the oil reservoir 14. An oil pump component 15 is slidably connected to the inner wall of the oil outlet chamber 18. The oil pump component 15 extends to the outside of the oil reservoir 14. A movable frame 20 is fixedly connected to one end of the oil pump component 15 located outside the oil reservoir 14. A strip-shaped hole 201 is opened on the movable frame 20. A second toothed engagement component 5 extends into the strip-shaped hole 201.

[0025] In a preferred embodiment, the splash-proof oil smearing assembly comprises an inflator 22, an air delivery pipe 23 and a control cylinder 24. Both the inflator 22 and the control cylinder 24 are fixedly connected to the base 1. One end of a pumping rod slidably connected to the inflator 22 is fixedly connected to the movable frame 20. One end of the air delivery pipe 23 is fixedly connected to the air outlet of the inflator 22, and the other end of the air delivery pipe 23 is in communication with the inner wall of the control cylinder 24. A piston assembly 25 is slidably connected to the inner wall of the control cylinder 24, the piston assembly 25 is connected to the inner wall of the control cylinder 24 through a fourth elastic element 26. An air hole 251 is formed in the piston assembly 25, the lower end of the piston assembly 25 extends to the lower part of the control cylinder 24, and the oil smearing member 21 is fixedly connected to the lower end of the piston assembly 25. The structure of the inflator 22 refers to the prior art, and components such as a one-way valve can be provided to enable continuous air pumping into the control cylinder 24 when the pumping rod moves In an optional embodiment, the details are as follows: A damping ring is sleeved on the piston assembly 25. The damping ring slows down the reset speed of the piston assembly 25, so that the piston assembly 25 can keep the oil smearing member 21 abutting against the meshing position of the first toothed engaging member 3 and the second toothed engaging member 5 when the inflator 22 pumps air.

[0026] Two opposite inner walls of the strip-shaped hole 201 are both rollingly connected with balls 202. The balls 202 are used to reduce the friction between the second toothed engaging member 5 and the movable frame 20, so that the second toothed engaging member 5 can smoothly drive the movable frame 20 to move back and forth.

[0027] The material of the oil smearing member 21 includes sponge. The sponge-made oil smearing member 21 is used to absorb and temporarily store lubricating oil, so that the lubricating oil can be evenly applied to the meshing position of the first toothed engaging member 3 and the second toothed engaging member 5.

[0028] The oil pumping member 15 is in a shape of a Chinese character "匚".

[0029] The oil smearing member 21 is arc-shaped, and the oil smearing member 21 is located above the first toothed engaging member 3 and the second toothed engaging member 5.

[0030] The outer diameter of the second gear is larger than the outer diameter of the first gear 31. This can make the first gear 31 rotate at an increased speed, so that the generator 4 can obtain a higher input rotational speed, thereby improving the energy feedback efficiency.

[0031] The core innovation of the present invention lies in that, by utilizing the linkage and cooperation among the first toothed engaging member 3, the second toothed engaging member 5, the second inclined surface block 8, the first inclined surface block 7, the extended toothed member 9, the locking strip 12, the first elastic element 6, the second elastic element 10 and the third elastic element 13, the second toothed engaging member 5 performs basic buffer deceleration at the initial stage of emergency stop, then triggers the extended toothed member 9 to extend to participate in engagement, realizing stepwise deceleration from low to high, effectively reducing the impact on the input end of the generator 4, and improving the emergency stop buffering effect.

[0032] Another core innovation of this application is that the axial reciprocating motion of the second toothed engagement member 5 is used as a power source to link the movable frame 20, the oil pump 15, the oil reservoir 14, the connecting channel 17, the curved oil outlet pipe 19 and the oiling member 21, so as to realize automatic oil pumping, fixed-point oil supply and uniform oiling during the emergency stop process. Lubrication can be completed without an additional drive source, and the oil supply can be automatically stopped and reset after stopping, reducing wear of the engagement part and lubricating oil splash contamination.

[0033] A monitoring system for the energy feedback device of a safety elevator is provided, which is used to monitor the energy feedback device of the safety elevator, including: a traction machine status monitoring module, a lubricating oil balance monitoring module, a generator monitoring module, a battery management system, and a remote transmission module.

[0034] The traction machine status monitoring module is used to detect the start-up status, stop status and emergency stop status of the elevator traction machine 2, and record the number of emergency stops of the elevator traction machine 2. The lubricating oil balance monitoring module is used to detect the lubricating oil balance in the oil storage chamber 16 of the oil reservoir 14, and to issue an oil replenishment prompt when the lubricating oil balance is lower than the preset balance value; the lubricating oil balance monitoring module can be a liquid level sensor.

[0035] The generator monitoring module is used to detect the operating status, output voltage, output current or power generation of generator 4, and to determine whether generator 4 is in an abnormal power generation state based on the output changes of generator 4.

[0036] A battery management system is used to monitor and manage the voltage, current, temperature, state of charge, and charge / discharge status of an energy storage system. The energy storage system may include a lithium-ion battery pack, and the individual cells in the lithium-ion battery pack may use a lithium-ion system or an electrode system containing lithium alloy materials.

[0037] Implementation process: In the initial state, the teeth of the extended tooth 9 are retracted into the first toothed engagement member 3, the first toothed engagement member 3 and the second toothed engagement member 5 engage with each other, the oiling member 21 does not abut against the first toothed engagement member 3 and the second toothed engagement member 5, and the oil pumping member 15 blocks the connecting channel 17.

[0038] When the elevator traction machine 2 is working, its output end drives the existing traction transmission mechanism of the elevator, thereby pulling the elevator car up and down. At the same time, the output end of the elevator traction machine 2 drives gear 211 and gear 31 to rotate. The first toothed engagement member 3 drives the second toothed engagement member 5 and the transmission shaft 41 to rotate through engagement. The transmission shaft 41 causes the input end of the generator 4 to rotate, thereby generating electricity and storing the electrical energy in the energy storage system for use in other power supply components, achieving energy saving.

[0039] When the elevator traction machine 2 stops suddenly to ensure safe operation, the oiled part 21, gear 31, and first toothed engagement part 3 stop rotating. Under the action of inertia, the second toothed engagement part 5 and the drive shaft 41 continue to rotate. The teeth of the second toothed engagement part 5 move along the teeth of the first toothed engagement part 3 and decelerate. Then, under the action of the elastic element 6, the second toothed engagement part 5 moves back and forth.

[0040] After the second toothed engagement member 5 and the transmission shaft 41 rotate a certain angle, the inclined surface of the second inclined block 8 on the transmission shaft 41 pushes the inclined surface of the first inclined block 7. The first inclined block 7 and the extended tooth 9 move against the elastic force of the second elastic element 10, so that the teeth on the extended tooth 9 extend to the outside of the first toothed engagement member 3. When the locking groove 11 and the locking bar 12 are aligned, the locking bar 12 is inserted into the locking groove 11 under the elastic force of the third elastic element 13 to limit the extension tooth 9. Then the teeth of the second toothed engagement member 5 move along the teeth of the first toothed engagement member 3 and the teeth of the extended tooth 9 and decelerate, thereby strengthening the deceleration effect and realizing gradient deceleration.

[0041] When the second toothed engagement member 5 moves back and forth within the strip-shaped hole 201, the movable frame 20, the oil pump 15, and the air pump rod also move back and forth with the second toothed engagement member 5. (Reference) Figure 4 When the pumping component 15 moves to the right of the connecting channel 17, it releases the blockage of the connecting channel 17. Some of the lubricating oil in the oil storage chamber 16 passes through the connecting channel 17 and falls to the left of the pumping component 15 in the oil outlet chamber 18. When the pumping component 15 moves to the left, it pushes the lubricating oil to spray out from the bent oil outlet pipe 19. The bending design of the bent oil outlet pipe 19 can change the spray angle of the lubricating oil, so that the lubricating oil is sprayed onto the oiling component 21. The lubricating oil dripping from the bent oil outlet pipe 19 will also be received by the oiling component 21 and will not contaminate other components.

[0042] When the pump rod moves back and forth, it continuously inflates the control cylinder 24. Since the inflation speed is much greater than the deflation speed of the air hole 251 on the piston assembly 25, the air pressure will push the piston assembly 25 to move downward against the elastic force of the elastic element 26, thereby driving the oiling part 21 to move down to the meshing point of the first toothed engagement part 3 and the second toothed engagement part 5. This not only lubricates the meshing point of the first toothed engagement part 3 and the second toothed engagement part 5, reducing the wear rate of the teeth on the first toothed engagement part 3 and the second toothed engagement part 5, but also decelerates the second toothed engagement part 5 to a certain extent.

[0043] After the second toothed engagement member 5 stops rotating, the second toothed engagement member 5 and the first toothed engagement member 3 remain engaged. The oil pumping member 15 blocks the connecting channel 17 to prevent the lubricating oil from flowing out. The air cylinder 22 stops pumping air into the control cylinder 24. The piston assembly 25 moves upward and resets under the elastic force of the elastic element 26. The oiling member 21 disengages from the contact with the first toothed engagement member 3 and the second toothed engagement member 5 to prevent interference with the subsequent rotation of the first toothed engagement member 3 and the second toothed engagement member 5.

[0044] When the first toothed engagement member 3 rotates, the locking bar 12 slides out of the locking groove 11 under the action of centrifugal force, thereby disengaging the locking bar 12 from the locking groove 11 and releasing the limit on the extension tooth 9. The teeth of the extension tooth 9 retract into the first toothed engagement member 3 under the action of the elastic element 2 10, so as to facilitate the step-by-step deceleration of the second toothed engagement member 5 when the elevator traction machine 2 stops suddenly next time.

[0045] The beneficial effects of this invention are as follows: This invention addresses the problems of existing structures being unable to perform gradient deceleration and excessively rapid deceleration at the input end of the generator 4. Through the cooperation of the first toothed engagement member 3, the second toothed engagement member 5, the first elastic element 6, the second inclined block 8, the first inclined block 7, the extension tooth 9, the second elastic element 10, the locking groove 11, the locking strip 12, and the third elastic element 13, when the elevator traction machine 2 stops suddenly, the second toothed engagement member 5 and the drive shaft 41 initially decelerate by relying on the basic engagement between the second toothed engagement member 5 and the first toothed engagement member 3. The elastic element 6 buffers the left-right reciprocating movement of the second toothed engagement member 5. When the second toothed engagement member 5 and the drive shaft 41 continue to rotate... After rotating at a certain angle, since the first inclined block 7 is located within the rotation path of the second inclined block 8, the second inclined block 8 pushes the first inclined block 7, causing the extended tooth 9 to extend out of the first toothed engagement member 3 and be limited by the locking bar 12 inserted into the locking groove 11. This allows the second toothed engagement member 5 to continue moving and decelerating along the teeth of the first toothed engagement member 3 and the teeth of the extended tooth 9. This achieves a step-like deceleration with initial buffering followed by reinforcement, avoiding a one-time forced deceleration of the transmission shaft 41 and the input end of the generator 4. This reduces the risk of excessive force on the bearing at the input end of the generator 4, axial rubbing between rotating and stationary parts, torsional impact of the transmission shaft 41, increased vibration of the generator 4, and shortened service life.

[0046] This invention addresses the problems of insufficient lubrication and rapid wear in existing structures. Through the cooperation of the oil reservoir 14, oil pump 15, oil storage chamber 16, connecting channel 17, oil outlet chamber 18, curved oil outlet pipe 19, movable frame 20, and strip-shaped hole 201, the reciprocating left-right movement of the second toothed engagement member 5 after a sudden stop is converted into the reciprocating pumping action of the oil pump 15. When the oil pump 15 moves to the right of the connecting channel 17, it releases the blockage, allowing the oil storage chamber to... The lubricating oil in 16 enters the oil outlet chamber 18 through the connecting channel 17. When the oil pump 15 moves to the left, the oil pump 15 pushes the lubricating oil out from the curved oil outlet pipe 19, thereby automatically providing lubricating oil when the first toothed engagement member 3 and the second toothed engagement member 5 are engaged in relative meshing friction. This reduces the dry friction between the tooth surfaces of the first toothed engagement member 3 and the second toothed engagement member 5, reduces the risk of tooth surface wear, tooth breakage, jamming and abnormal noise, and improves the transmission stability and device durability during emergency stop deceleration.

[0047] This invention further addresses the problems of unstable lubricant application position, easy lubricant splashing and contamination of other components, and potential interference with subsequent normal transmission by the lubrication mechanism. Through the coordination of the air cylinder 22, air supply pipe 23, control cylinder 24, piston assembly 25, air hole 251, elastic element 26, and oiling component 21, the movable frame 20 moves synchronously with the second toothed engagement member 5 as it reciprocates left and right. This causes the air cylinder 22 to inflate the control cylinder 24, and the air pressure inside the control cylinder 24 pushes the piston assembly 25 downwards, moving the oiling component 21 to the engagement point of the first toothed engagement member 3 and the second toothed engagement member 5. Contact-type oiling: The lubricating oil sprayed from the curved oil outlet pipe 19 can preferentially fall onto the oiling component 21. The oiling component 21 can not only receive the lubricating oil, avoiding splashing and dripping contamination, but also evenly coat the lubricating oil onto the meshing area. At the same time, after the second toothed meshing component 5 stops rotating, the oil pump component 15 re-seals the connecting channel 17. The piston assembly 25 resets under the elastic force of the elastic element 26 and drives the oiling component 21 to disengage from the first toothed meshing component 3 and the second toothed meshing component 5, thereby avoiding continuous outflow of lubricating oil and long-term contact of the oiling component 21, which would cause running resistance. This achieves automatic lubrication during emergency stop, automatic oil cut-off after stop, and reset.

[0048] The components, modules, mechanisms, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An energy feedback device for a safety elevator, comprising a base (1), an elevator traction machine (2) and a generator (4) fixedly connected to the base (1), the generator (4) being connected to an energy storage system, a second gear (211) fixedly connected to the output end of the elevator traction machine (2), a drive shaft (41) fixedly connected to the input end of the generator (4), and a first gear (31) rotatably connected to the base (1), the first gear (31) and the second gear (211) meshing, characterized in that: A first toothed engagement member (3) is fixedly connected to a gear (31), a second toothed engagement member (5) is slidably connected to a transmission shaft (41), an elastic element (6) is fixedly connected to the transmission shaft (41), the elastic element (6) abuts against the second toothed engagement member (5), the transmission shaft (41) passes through the second toothed engagement member (5), a second inclined block (8) is fixedly connected to the transmission shaft (41), an extension tooth (9) is slidably connected inside the first toothed engagement member (3), the extension tooth (9) is connected to the inner wall of the first toothed engagement member (3) through an elastic element (10), and the extension tooth (9)... A locking groove (11) is provided on the base (1). A first inclined block (7) is fixedly connected to the extension tooth (9). The first inclined block (7) extends to the outside of the first toothed engagement member (3). A locking strip (12) is slidably connected inside the first toothed engagement member (3). The locking strip (12) is connected to the inner wall of the first toothed engagement member (3) through the elastic element three (13). The locking strip (12) and the extension tooth (9) abut against each other. The second toothed engagement member (5) and the first toothed engagement member (3) bite each other. An oiling component is connected to the base (1). The oiling component includes an oil dispensing component and an anti-splashing oil application component.

2. The energy feedback device for a safety elevator according to claim 1, characterized in that, The oil outlet assembly includes an oil reservoir (14), which is fixedly connected to the base (1). The oil reservoir (14) has an oil storage chamber (16) and an oil outlet chamber (18). The bottom wall of the oil storage chamber (16) is connected to the top wall of the oil outlet chamber (18) through a connecting channel (17). The oil outlet chamber (18) is connected to the outer wall of the oil reservoir (14). The oil storage chamber (16) is filled with lubricating oil. The outer wall of the oil reservoir (14) is fixedly connected to the base (1). A curved oil outlet pipe (19) is connected to the oil outlet chamber (18). A pump component (15) is slidably connected to the inner wall of the oil outlet chamber (18). The pump component (15) extends to the outside of the oil reservoir (14). A movable frame (20) is fixed to one end of the pump component (15) outside the oil reservoir (14). A strip-shaped hole (201) is opened on the movable frame (20). The second toothed engagement component (5) extends into the strip-shaped hole (201).

3. The energy feedback device for a safety elevator according to claim 2, characterized in that, The splash-proof oil smearing assembly comprises an inflator (22), a gas delivery pipe (23) and a control cylinder (24). Both the inflator (22) and the control cylinder (24) are fixedly connected to the base (1). One end of a pumping rod slidably connected to the inflator (22) is fixedly connected to the movable frame (20). One end of the gas delivery pipe (23) is fixedly connected to the gas outlet of the inflator (22), and the other end of the gas delivery pipe (23) is communicated with the inner wall of the control cylinder (24). A piston assembly (25) is slidably connected to the inner wall of the control cylinder (24), the piston assembly (25) is connected with the inner wall of the control cylinder (24) through a fourth elastic element (26), an air hole (251) is opened on the piston assembly (25), the lower end of the piston assembly (25) extends to the lower part of the control cylinder (24), and the oil smearing member (21) is fixedly connected to the lower end of the piston assembly (25).

4. The energy feedback device for a safety elevator according to claim 3, characterized in that, A damping ring is sleeved on the piston assembly (25).

5. The energy feedback device for a safety elevator according to claim 3, characterized in that, Two opposite inner walls of the strip-shaped hole (201) are both rollingly connected with balls (202).

6. The energy feedback device for a safety elevator according to claim 3, characterized in that, The material of the oil smearing member (21) comprises sponge.

7. The energy feedback device for a safety elevator according to claim 3, characterized in that, The oil pumping member (15) is in a U-shape.

8. The energy feedback device for a safety elevator according to claim 3, characterized in that, The oil smearing member (21) is arc-shaped, and the oil smearing member (21) is located above the first toothed engaging member (3) and the second toothed engaging member (5).

9. The energy feedback device for a safety elevator according to claim 1, characterized in that, The outer diameter of the second gear (211) is larger than the outer diameter of the first gear (31).

10. A monitoring system for an energy feedback device in a safety elevator, characterized in that, For monitoring the energy feedback device of the safety elevator according to any one of claims 1 to 9, the device comprises: a traction machine state monitoring module, a lubricating oil residual amount monitoring module, a generator monitoring module, a battery management system and a remote transmission module.

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