Planetary gear reducer for pure electric swing cylinder

Abstract

The present application relates to the technical field of planetary gear reducer, specifically to a planetary gear reducer for pure electric swing cylinder, which comprises a shell, one end of the shell is fixedly connected with an end cover, the center of the end cover is rotationally connected with a transmission shaft, one end of the end cover is provided with a cooling mechanism, the cooling mechanism comprises an air bag, the surface of the transmission shaft is fixedly connected with a fourth disc, the surface of the fourth disc is fixedly connected with a clockwork, the lower end of the air bag is provided with a force storage mechanism, the inside of the shell is provided with a clamping mechanism, the surface of the transmission shaft is fixedly connected with the inner ring of a bearing, the surface of the transmission shaft is provided with a relief mechanism, the outer ring of the bearing is fixedly connected with the fourth disc, the lower end of the fourth disc is provided with a reversing mechanism, the reversing mechanism comprises a third gear, the lower end of the third gear is provided with a speed reducer; when starting the speed reducer, the transmission shaft rotates and drives the pawl away from the ratchet, at this time, the clockwork stored with force pushes the transmission shaft to rotate, so that the speed reducer can be started quickly, and the energy consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of planetary gear reducer technology, specifically a planetary gear reducer for a pure electric swing cylinder. Background Technology

[0002] The planetary gear reducer for pure electric swing cylinders is a high-precision power transmission device that combines pure electric drive with planetary gear transmission technology. It is widely used in industrial automation, robotics, aerospace and other fields. The pure electric swing cylinder achieves rotation or swing motion by driving the hydraulic swing assembly with a motor. The planetary gear reducer for pure electric swing cylinders is an integrated power transmission device that combines pure electric drive technology with planetary gear transmission technology. It is designed for scenarios that require high-precision rotation or swing control. Pure electric swing cylinder: a special hydraulic actuator that achieves the rotation or swing motion of the cylinder body by driving the hydraulic system with a motor, replacing traditional hydraulic drive to reduce leakage risk and achieve electric control.

[0003] However, the start-stop cycle of existing pure electric swing cylinder planetary gear reducers leads to prolonged equipment standby time, especially in high-frequency start-stop scenarios (such as automated production lines), resulting in significant capacity loss. During slow start-stop processes, the motor remains in an inefficient operating range for extended periods, particularly in high-power scenarios, leading to significant energy waste. This makes it unsuitable for high-speed, high-paced operating conditions (such as packaging machinery and conveyor systems), potentially causing production line coordination issues or product quality fluctuations. Rapid start-stop is a core performance indicator for planetary gear reducers in high-precision, high-dynamic-response scenarios, and optimization requires comprehensive design from a mechatronics perspective. Insufficient start-stop capability directly impacts equipment efficiency, accuracy, and reliability. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a planetary gear reducer for a pure electric swing cylinder.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a planetary gear reducer for a pure electric swing cylinder, comprising a housing, an end cap fixedly connected to one end of the housing, a drive shaft rotatably connected to the center of the end cap, a cooling mechanism for cooling the inside of the reducer provided at one end of the end cap, the cooling mechanism including an air bladder, a fourth disc fixedly connected to the surface of the drive shaft, a spring fixedly connected to the surface of the fourth disc, a power storage mechanism for storing power in the spring provided at the lower end of the air bladder, a locking mechanism for limiting the spring provided inside the housing, an inner ring of a bearing fixedly connected to the surface of the drive shaft, a force release mechanism for releasing the spring force on the surface of the drive shaft, a fourth disc fixedly connected to the outer ring of the bearing, a reversing mechanism for converting the spring force of the spring into a force driving the drive shaft to rotate provided at the lower end of the fourth disc, the reversing mechanism including a third gear, and a deceleration mechanism for reducing the power of the drive shaft provided at the lower end of the third gear.

[0006] Preferably, the cooling mechanism includes an air pump, the outer surface of which is fixedly connected to the housing, the input end of which is fixedly connected to a drive shaft, fan blades fixedly connected to the surface of the drive shaft, an air bag fixedly connected to the lower end of the air pump, and a first disc fixedly connected to the lower end of the air bag.

[0007] Preferably, the cooling mechanism further includes a connecting pipe, the surface of the first disc is fixedly connected to the connecting pipe, and a pressure relief valve is fixedly connected inside the connecting pipe.

[0008] Preferably, the power storage mechanism includes a bearing, a second disk is fixedly connected to the outer ring surface of the bearing, a piston is slidably connected inside the second disk, a spring is fixedly connected to one end of the piston, one end of the spring is fixedly connected to the second disk, an air hole is opened inside the piston, a sliding block is fixedly connected to one end of the piston, a first connecting block is fixedly connected to one end of the sliding block, a sleeve is elastically connected to the first connecting block through a compression spring, and a third disk is attached to one end of the sleeve.

[0009] Preferably, the power storage mechanism further includes a ratchet, the ratchet is fixedly connected to the surface of the third disc, the first gear is fixedly connected to the lower end of the third disc, the surface of the third disc is fixedly connected to the mainspring, the center of the fourth disc is fixedly connected to the transmission shaft, the lower end of the fourth disc is rotatably connected to the first gear, and one end of the sliding block is fixedly connected to an arc-shaped plate, one end of the arc-shaped plate is in contact with the airbag.

[0010] Preferably, the engaging mechanism includes a connecting plate, which is fixedly connected to the sliding block, and a pawl is elastically connected inside the connecting plate via a torsion spring.

[0011] Preferably, the pressure relief mechanism includes a protrusion block, which is fixedly connected to the drive shaft. One end of the protrusion block is attached to a roller, and one end of the roller is rotatably connected to a second connecting block, which is fixedly connected to the sliding block.

[0012] Preferably, the reversing mechanism includes a second gear, one end of which meshes with the first gear, and a rotating rod is fixedly connected to the center of the second gear, one end of which is rotatably connected to the outer casing.

[0013] Preferably, the reversing mechanism further includes a third gear, one end of which meshes with the third gear, and the center of the third gear is fixedly connected to the drive shaft.

[0014] Preferably, the reduction mechanism includes a housing, the center of which is rotatably connected to the drive shaft, a sun gear is fixedly connected to the surface of the drive shaft, the sun gear meshes with a plurality of planet gears, an internal gear ring meshes with one end of each planet gear, the internal gear ring is fixedly connected to the housing, a rotating shaft is rotatably connected to the center of each planet gear, and a planet carrier is fixedly connected to one end of the rotating shaft.

[0015] The beneficial effects of this invention are:

[0016] The planetary gear reducer for a pure electric swing cylinder described in this invention has a structure in which the air pump inflates the air bladder when the drive shaft rotates. When the air bladder reaches a certain pressure, it is discharged from several small holes inside the outer shell. The high-pressure gas discharged from the small holes cools the surface of the shell, thereby cooling the high-speed rotating parts inside the reducer.

[0017] The planetary gear reducer for a pure electric swing cylinder described in this invention employs a structure in which, when the external power to rotate the drive shaft stops, the spring recovers the inertial power of the drive shaft. The fourth disc on the drive shaft, being heavier, acts as a flywheel, converting the inertial power of the drive shaft into the elastic force of the spring.

[0018] The planetary gear reducer for a pure electric swing cylinder described in this invention uses a pawl to engage with a ratchet wheel when the external power to the drive shaft is stopped, preventing the spring from rebounding after it has been charged.

[0019] The planetary gear reducer for a pure electric swing cylinder described in this invention, through a specially designed structure, allows the drive shaft to rotate and drive a protruding block to rotate when the reducer is started. The torsion spring between the protruding block and the drive shaft is compressed during startup. At this time, the rotation of the drive shaft directly drives the protruding block to rotate, which in turn moves the pawl away from the ratchet. The stored spring then drives the third disc to rotate counterclockwise, which in turn drives the drive shaft to rotate clockwise. This allows for rapid startup of the reducer while reducing energy consumption. The designed structure converts the spring force into a driving force that propels the drive shaft. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the outer shell structure;

[0023] Figure 3 This is a schematic diagram of the drive shaft structure;

[0024] Figure 4 This is a schematic diagram of the second disk structure;

[0025] Figure 5 This is a schematic diagram of the connection structure between the sliding block and the first connecting block;

[0026] Figure 6 This is a schematic diagram of the connection structure between the first disk and the connecting pipe;

[0027] Figure 7 This is a schematic diagram of the connection structure between the piston and the sliding block;

[0028] Figure 8 This is a schematic diagram of the connection structure between the third disk and the ratchet.

[0029] Figure 9 This is a schematic diagram of the connection structure between the second gear and the rotating rod;

[0030] Figure 10 This is a schematic diagram of the connection structure between the sun gear and the planet gears.

[0031] In the diagram: 100, outer casing; 101, end cap; 200, drive shaft; 300, cooling mechanism; 301, air pump; 302, fan blade; 303, air bag; 304, first disc; 305, connecting pipe; 306, pressure relief valve; 400, power storage mechanism; 401, bearing; 402, second disc; 403, piston; 4031, spring; 4032, air hole; 404, sliding block; 405, first connecting block; 406, sleeve; 407, third disc; 408, ratchet; 409, motor. 410. Fourth disc; 411. First gear; 412. Arc plate; 500. Engaging mechanism; 501. Connecting plate; 502. Pawl; 600. Pressure relief mechanism; 601. Protrusion; 602. Roller; 603. Second connecting block; 700. Reversing mechanism; 701. Second gear; 702. Rotating rod; 703. Third gear; 800. Reduction mechanism; 801. Housing; 802. Sun gear; 803. Planet gears; 804. Rotating shaft; 805. Planet carrier; 806. Internal gear ring. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figures 1-10 As shown, the planetary gear reducer for a pure electric swing cylinder according to the present invention includes a housing 100, an end cover 101 fixedly connected to one end of the housing 100, a drive shaft 200 rotatably connected to the center of the end cover 101, a cooling mechanism 300 for cooling the inside of the reducer provided at one end of the end cover 101, the cooling mechanism 300 including an air bladder 303, a fourth disk 410 fixedly connected to the surface of the drive shaft 200, a spring 409 fixedly connected to the surface of the fourth disk 410, and a power storage mechanism 400 for storing power in the spring 409 provided at the lower end of the air bladder 303. The housing 100 contains... The transmission shaft 200 is provided with a locking mechanism 500 for limiting the mainspring 409. The inner ring of the bearing 401 is fixedly connected to the surface of the transmission shaft 200. The surface of the transmission shaft 200 is provided with a force release mechanism 600 for releasing the elastic force of the mainspring 409. The outer ring of the bearing 401 is fixedly connected to a fourth disc 410. The lower end of the fourth disc 410 is provided with a reversing mechanism 700 for converting the elastic force of the mainspring 409 into a force that drives the transmission shaft 200 to rotate. The reversing mechanism 700 includes a third gear 703. The lower end of the third gear 703 is provided with a deceleration mechanism 800 for reducing the power of the transmission shaft 200.

[0034] Specifically, the cooling mechanism 300 includes an air pump 301. The outer surface of the air pump 301 is fixedly connected to the outer casing 100. The input end of the air pump 301 is fixedly connected to a drive shaft 200. A fan blade 302 is fixedly connected to the surface of the drive shaft 200. An air bladder 303 is fixedly connected to the lower end of the air pump 301. A first disc 304 is fixedly connected to the lower end of the air bladder 303. A connecting pipe 305 is fixedly connected to the surface of the first disc 304. A pressure relief valve 306 is fixedly connected inside the connecting pipe 305. An external power source drives the drive shaft 200 to rotate. The rotation of the drive shaft 200 drives the fan blade 302 to rotate. The rotation of the fan blade 302 generates air pressure, which is discharged through the air outlet pipe of the air pump 301. The high-pressure gas discharged through the air outlet pipe enters the interior of the air bladder 303. The interior of the air bladder 303 expands as the air pressure increases. When the air pressure inside the air bladder 303 reaches a certain level... When a certain pressure is reached, the gas will be discharged from the connecting pipe 305. The connecting pipe 305 is equipped with a pressure relief valve 306, which controls the pressure inside the airbag 303. When the pressure inside the airbag 303 reaches a certain value, it will be discharged from the pressure relief valve 306. The gas enters the housing 100 through the connecting pipe 305. Several small holes are provided inside the housing 100. The high-pressure gas is discharged from the small holes inside the housing 100, and the high-pressure gas discharged from the small holes cools the surface of the housing 801. Through the structure, when the drive shaft 200 rotates, it will drive the air pump 301 to inflate the airbag 303. When the airbag 303 is inflated to a certain pressure, it will be discharged from the small holes inside the housing 100. The high-pressure gas discharged from the small holes cools the surface of the housing 801, thereby cooling the high-speed rotating parts inside the reducer.

[0035] Additionally, the energy storage mechanism 400 includes a bearing 401, with a second disc 402 fixedly connected to the outer ring surface of the bearing 401. A piston 403 is slidably and sealed inside the second disc 402. A spring 4031 is fixedly connected to one end of the piston 403, and one end of the spring 4031 is fixedly connected to the second disc 402. An air hole 4032 is provided inside the piston 403. A sliding block 404 is fixedly connected to one end of the piston 403, and a first connecting block 405 is fixedly connected to one end of the sliding block 404. The first connecting block 405 is elastically connected to a sleeve 406 via a compression spring. One end of the 6 is attached to a third disc 407, a ratchet 408 is fixedly connected to the surface of the third disc 407, a first gear 411 is fixedly connected to the lower end of the third disc 407, the surface of the third disc 407 is fixedly connected to the spring 409, the center of the fourth disc 410 is fixedly connected to the drive shaft 200, the lower end of the fourth disc 410 is rotatably connected to the first gear 411, one end of the sliding block 404 is fixedly connected to an arc-shaped plate 412, one end of the arc-shaped plate 412 is attached to the airbag 303; when the external power to rotate the drive shaft 200 is stopped, the airbag 303 will shrink. Piston 403 moves towards the center of the second disk 402 under the action of spring 4031. This movement causes sliding block 404 to move towards the center of the second disk 402. The sliding block 404 then moves the first connecting block 405 and sleeve 406 closer to the third disk 407. The sleeve 406, in contact with the third disk 407, limits its movement. At this time, the drive shaft 200, under inertia, drives the fourth disk 410 to rotate. The rotation of the fourth disk 410 drives the mainspring 409 to rotate, which in turn drives the third disk 407 to rotate. When the third disc 407 rotates, it will drive the ratchet 408 to rotate. When the airbag 303 inflates, it will drive the arc plate 412 to move outward. The outward movement of the arc plate 412 will drive the sliding block 404 away from the drive shaft 200. When the airbag 303 inflates to its maximum volume, the protrusion 601 will rotate and not contact the roller 602. With the structure set, when the external power to rotate the drive shaft 200 is stopped, the spring 409 will recover the inertial power of the drive shaft 200. The fourth disc 410 on the drive shaft 200 is heavier and acts as a flywheel, so that the inertial power of the drive shaft 200 is converted into the elastic force of the spring 409.

[0036] Furthermore, the engaging mechanism 500 includes a connecting plate 501, which is fixedly connected to the sliding block 404. A pawl 502 is elastically connected inside the connecting plate 501 via a torsion spring. When the sleeve 406 approaches the third disc 407, it will drive the connecting plate 501 to approach the third disc 407. When the connecting plate 501 approaches the third disc 407, it will drive the pawl 502 to engage with the ratchet 408. At this time, the ratchet 408 rotates to store power for the mainspring 409. Through the pawl 502, when the external power to rotate the drive shaft 200 is stopped, the pawl 502 will engage with the ratchet 408, so that the mainspring 409 will not rebound after storing power.

[0037] It should be noted that the pressure relief mechanism 600 includes a protrusion 601, which is fixedly connected to the drive shaft 200. One end of the protrusion 601 is attached to a roller 602, and one end of the roller 602 is rotatably connected to a second connecting block 603, which is fixedly connected to the sliding block 404. When the reducer is started, the drive shaft 200 rotates, which drives the protrusion 601 to rotate. In the initial static state, the torsion spring inside the protrusion 601 is compressed to an incompressible state. At this time, the rotation of the protrusion 601 will drive the roller 602 to move outward. The outward movement of the roller 602 will drive the second connecting block 603 to move outward. The outward movement of the second connecting block 603 will drive the piston 403 to move outward. The groove where the piston 403 slides is filled with water. The piston 403 is made of rubber and has an air hole 4032 inside. The air hole 4032 has a small opening at the end closer to the spring 4031 and a large opening at the end farther away from the spring 4031. In this way, the piston 403 needs to compress the water slowly at the end closer to the spring 4031, and the piston 403 moves slowly at the end farther away from the spring 4031. The water is compressed rapidly at the end away from spring 4031. This design improves the conditions for the spring 409 to release its elastic force. The outward movement of the second connecting block 603 will cause the sleeve 406 to move away from the third disc 407. The outward movement of the second connecting block 603 will also cause the pawl 502 to move away from the ratchet 408. At this time, the stored force of the spring 409 will drive the fourth disc 410 to rotate. The rotation of the fourth disc 410 will drive the drive shaft 200 to rotate, thereby quickly starting the reducer and reducing energy consumption. The fourth disc 410, being heavier, acts as a flywheel. Through this structural design... When the reducer is started, the drive shaft 200 rotates, causing the protrusion 601 to rotate. The torsion spring between the protrusion 601 and the drive shaft 200 is in a compressed state during startup. At this time, the rotation of the drive shaft 200 directly drives the protrusion 601 to rotate. The rotation of the protrusion 601 then causes the pawl 502 to move away from the ratchet 408. At this time, the stored spring 409 drives the third disc 407 to rotate counterclockwise. The counterclockwise rotation of the third disc 407 then drives the drive shaft 200 to rotate clockwise, thereby quickly starting the reducer and reducing energy consumption.

[0038] It is worth mentioning that the reversing mechanism 700 includes a second gear 701, one end of which meshes with the first gear 411. A rotating rod 702 is fixedly connected to the center of the second gear 701, one end of which is rotatably connected to the outer casing 100. A third gear 703 meshes with one end of the second gear 701, and the center of the third gear 703 is fixedly connected to the drive shaft 200. When the first gear 411 rotates counterclockwise, it drives the second gear 701 to rotate counterclockwise. The counterclockwise rotation of the second gear 701 drives the third gear 703 to rotate clockwise. The clockwise rotation of the third gear 703 drives the drive shaft 200 to rotate clockwise. This structure converts the elasticity of the spring 409 into a driving force that propels the drive shaft 200.

[0039] Specifically, the reduction mechanism 800 includes a housing 801, the center of which is rotatably connected to the drive shaft 200. A sun gear 802 is fixedly connected to the surface of the drive shaft 200, and the sun gear 802 meshes with a plurality of planet gears 803. One end of each planet gear 803 meshes with an internal gear ring 806, which is fixedly connected to the housing 801. A rotating shaft 804 is rotatably connected to the center of each planet gear 803, and a planet carrier 800 is fixedly connected to one end of the rotating shaft 804. 5; While the drive shaft 200 rotates, it drives the sun gear 802 to rotate. The rotation of the sun gear 802 drives the planet gear 803 to rotate. The rotation of the planet gear 803 meshes with the internal gear ring 806 and rotates. The rotation of the planet gear 803 drives the shaft 804 to rotate around the sun gear 802. The rotation of the sun gear 802 drives the planet carrier 805 to rotate. The rotation of the planet carrier 805 drives the next sun gear 802 to rotate. Through the compact design of the reducer, high transmission efficiency is ensured while the size and weight are significantly reduced.

[0040] Working Principle: In use, this invention uses an external power source to drive the transmission shaft 200 to rotate. The rotation of the transmission shaft 200 drives the fan blades 302 to rotate. The rotation of the fan blades 302 generates air pressure, which is discharged through the air outlet pipe of the air pump 301. The high-pressure air discharged through the outlet pipe enters the airbag 303. The airbag 303 expands as the air pressure increases. When the air pressure inside the airbag 303 reaches a certain level, it is discharged through the connecting pipe 305. The connecting pipe 305 is equipped with a pressure relief valve 306, which controls the pressure inside the airbag 303. When the pressure inside the airbag 303 reaches a certain value, it will discharge through the pressure relief valve 306. Gas is discharged through valve 306 and enters the housing 100 through connecting pipe 305. Several small holes are provided inside the housing 100. High-pressure gas is discharged from the small holes inside the housing 100, and the high-pressure gas discharged from the small holes cools the surface of the housing 801. Through the structure, when the drive shaft 200 rotates, it drives the air pump 301 to inflate the air bag 303. When the air bag 303 is inflated to a certain pressure, it is discharged from the small holes inside the housing 100. The high-pressure gas discharged from the small holes cools the surface of the housing 801, thereby cooling the high-speed rotating parts inside the reducer.

[0041] When the external power to rotate the drive shaft 200 stops, the airbag 303 shrinks. At this time, the piston 403 moves towards the center of the second disc 402 under the action of the spring 4031. This movement of the piston 403 towards the center of the second disc 402 causes the sliding block 404 to move towards the center of the second disc 402. The movement of the sliding block 404 towards the center of the second disc 402 further causes the first connecting block 405 and the sleeve 406 to move closer to the third disc 407. The sleeve 406, in contact with the third disc 407, limits its movement. At this time, the drive shaft 200, under the action of inertia, drives the fourth disc 410 to rotate. The rotation of the fourth disc 410 drives the mainspring 409 to rotate. When the mainspring 409 rotates, it drives the third disc 407 to rotate, which in turn drives the ratchet 408 to rotate. When the airbag 303 inflates, it drives the arc plate 412 to move outward. The outward movement of the arc plate 412 drives the sliding block 404 away from the drive shaft 200. When the airbag 303 inflates to its maximum volume, the protrusion 601 rotates and does not contact the roller 602. With this structure, when the external power to rotate the drive shaft 200 stops, the mainspring 409 will recover the inertial power of the drive shaft 200. The fourth disc 410 on the drive shaft 200 is heavier and acts as a flywheel, converting the inertial power of the drive shaft 200 into the elastic force of the mainspring 409.

[0042] When the sleeve 406 approaches the third disc 407, it will cause the connecting plate 501 to approach the third disc 407. When the connecting plate 501 approaches the third disc 407, it will cause the pawl 502 to engage with the ratchet 408. At this time, the ratchet 408 rotates to store power for the mainspring 409. Through the pawl 502, when the external power to rotate the drive shaft 200 is stopped, the pawl 502 will engage with the ratchet 408, so that the mainspring 409 will not rebound after storing power.

[0043] When the reducer is started, the drive shaft 200 rotates, which in turn drives the protrusion 601 to rotate. In its initial static state, the torsion spring inside the protrusion 601 is compressed to an incompressible state. At this point, the rotation of the protrusion 601 drives the roller 602 to move outward. The outward movement of the roller 602 drives the second connecting block 603 to move outward, which in turn drives the piston 403 to move outward. The groove where the piston 403 slides is filled with water. Water is incompressible, so the water in the groove of the second disc 402 can only move outward through the air hole 4032, thus enabling the piston 403 to move outward. Piston 403 is made of rubber and has an air hole 4032 inside. The air hole 4032 has a smaller opening at the end closer to spring 4031 and a larger opening at the end farther from spring 4031. This design allows the piston 403 to compress water slowly at the end closer to spring 4031 and quickly at the end farther from spring 4031. This configuration improves the conditions for the spring 409 to release its elasticity. The outward movement of the second connecting block 603 will cause the sleeve 406 to move away from the third disc 407. The outward movement of the second connecting block 603 will also cause the pawl 502 to move away from the ratchet 408. At this time, the charged spring 409 will drive the fourth disc 410 to rotate. The rotation of the fourth disc 410 will then drive the drive shaft. The drive shaft 200 rotates, allowing for rapid startup of the reducer while reducing energy consumption. The heavier fourth disc 410 acts as a flywheel. Through this structure, when starting the reducer, the rotation of the drive shaft 200 drives the protrusion 601 to rotate. The torsion spring between the protrusion 601 and the drive shaft 200 is compressed during startup. The rotation of the drive shaft 200 directly drives the protrusion 601 to rotate, which in turn moves the pawl 502 away from the ratchet 408. At this point, the stored spring 409 drives the third disc 407 to rotate counterclockwise, which in turn drives the drive shaft 200 to rotate clockwise, thus enabling rapid startup of the reducer while reducing energy consumption.

[0044] While the first gear 411 rotates counterclockwise, it will drive the second gear 701 to rotate counterclockwise. The counterclockwise rotation of the second gear 701 will drive the third gear 703 to rotate clockwise. The clockwise rotation of the third gear 703 will drive the transmission shaft 200 to rotate clockwise. The structure will convert the spring force of the mainspring 409 into a driving force to promote the transmission shaft 200.

[0045] While the drive shaft 200 rotates, it drives the sun gear 802 to rotate. The rotation of the sun gear 802 drives the planet gear 803 to rotate. The rotation of the planet gear 803 meshes with the internal gear ring 806 and rotates. The rotation of the planet gear 803 drives the shaft 804 to rotate around the sun gear 802. The rotation of the sun gear 802 drives the planet carrier 805 to rotate. The rotation of the planet carrier 805 drives the next sun gear 802 to rotate. The compactly designed reducer ensures high transmission efficiency while significantly reducing size and weight.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planetary gear reducer for a pure electric swing cylinder, comprising a housing (100), a cover (101) fixedly connected to one end of the housing (100), and a drive shaft (200) rotatably connected to the center of the cover (101), characterized in that: One end of the cover (101) is provided with a cooling mechanism (300) for cooling the inside of the reducer. The cooling mechanism (300) includes an airbag (303). A fourth disc (410) is fixedly connected to the surface of the drive shaft (200). A spring (409) is fixedly connected to the surface of the fourth disc (410). A power storage mechanism (400) for storing power in the spring (409) is provided at the lower end of the airbag (303). A locking mechanism (500) for limiting the spring (409) is provided inside the outer shell (100). The surface of the drive shaft (200) is fixedly connected to... The inner ring of the bearing (401) is provided with a force release mechanism (600) for releasing the spring force of the spring (409) on the surface of the drive shaft (200). The outer ring of the bearing (401) is fixedly connected to a fourth disc (410). The lower end of the fourth disc (410) is provided with a reversing mechanism (700) for converting the spring force of the spring (409) into a driving force for pushing the drive shaft (200). The reversing mechanism (700) includes a third gear (703). The lower end of the third gear (703) is provided with a deceleration mechanism (800) for reducing the power of the drive shaft (200). The power storage mechanism (400) includes a second disk (402), a piston (403) is slidably connected inside the second disk (402), a spring (4031) is fixedly connected to one end of the piston (403), one end of the spring (4031) is fixedly connected to the second disk (402), and an air hole (4032) is opened inside the piston (403). The opening of the vent (4032) is small at the end closer to the spring (4031), and large at the end farther away from the spring (4031).

2. The planetary gear reducer for a pure electric swing cylinder according to claim 1, characterized in that: The cooling mechanism (300) includes an air pump (301), the outer surface of which is fixedly connected to the outer casing (100), the input end of which is fixedly connected to a drive shaft (200), a fan blade (302) is fixedly connected to the surface of the drive shaft (200), an air bag (303) is fixedly connected to the lower end of the air pump (301), and a first disc (304) is fixedly connected to the lower end of the air bag (303).

3. The planetary gear reducer for a pure electric swing cylinder according to claim 2, characterized in that: The cooling mechanism (300) also includes a connecting pipe (305), the surface of the first disc (304) is fixedly connected to the connecting pipe (305), and the inside of the connecting pipe (305) is fixedly connected to a one-way valve (306).

4. The planetary gear reducer for a pure electric swing cylinder according to claim 3, characterized in that: The power storage mechanism (400) includes a bearing (401), the outer ring surface of the bearing (401) is fixedly connected to the second disk (402), one end of the piston (403) is fixedly connected to a sliding block (404), one end of the sliding block (404) is fixedly connected to a first connecting block (405), the first connecting block (405) is elastically connected to a sleeve (406) through a compression spring, and one end of the sleeve (406) is attached to a third disk (407).

5. A planetary gear reducer for a pure electric swing cylinder according to claim 4, characterized in that: The power storage mechanism (400) also includes a ratchet (408), the ratchet (408) is fixedly connected to the surface of the third disc (407), the first gear (411) is fixedly connected to the lower end of the third disc (407), the spring (409) is fixedly connected to the surface of the third disc (407), the center of the fourth disc (410) is fixedly connected to the transmission shaft (200), the first gear (411) is rotatably connected to the lower end of the fourth disc (410), and an arc plate (412) is fixedly connected to one end of the sliding block (404), and one end of the arc plate (412) is in contact with the airbag (303).

6. A planetary gear reducer for a pure electric swing cylinder according to claim 5, characterized in that: The engaging mechanism (500) includes a connecting plate (501), which is fixedly connected to the sliding block (404). The connecting plate (501) has a pawl (502) elastically connected inside by a torsion spring.

7. A planetary gear reducer for a pure electric swing cylinder according to claim 6, characterized in that: The pressure relief mechanism (600) includes a protrusion (601), which is fixedly connected to the transmission shaft (200). One end of the protrusion (601) is attached to a roller (602), and one end of the roller (602) is rotatably connected to a second connecting block (603). The second connecting block (603) is fixedly connected to the sliding block (404).

8. A planetary gear reducer for a pure electric swing cylinder according to claim 7, characterized in that: The reversing mechanism (700) includes a second gear (701), one end of which meshes with the first gear (411), and a rotating rod (702) is fixedly connected to the center of the second gear (701), one end of which is rotatably connected to the outer casing (100).

9. A planetary gear reducer for a pure electric swing cylinder according to claim 8, characterized in that: The reversing mechanism (700) also includes a third gear (703), one end of which meshes with the third gear (703), and the center of the third gear (703) is fixedly connected to the transmission shaft (200).

10. A planetary gear reducer for a pure electric swing cylinder according to claim 9, characterized in that: The reduction mechanism (800) includes a housing (801), the center of which is rotatably connected to the drive shaft (200). A sun gear (802) is fixedly connected to the surface of the drive shaft (200). The sun gear (802) meshes with a plurality of planet gears (803). One end of each planet gear (803) meshes with an internal gear ring (806). The internal gear ring (806) is fixedly connected to the housing (801). A rotating shaft (804) is rotatably connected to the center of each planet gear (803). One end of the rotating shaft (804) is fixedly connected to a planet carrier (805).

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