A planetary gear transmission device

Abstract

The present application discloses a planetary gear transmission device, which belongs to the technical field of transmission devices, and includes a base, a main power device, a main transmission shaft and a lubrication mechanism. The main power device is installed on the top of the base, and the main power device is used to provide power for the entire equipment. One side of the base is connected to the frame by bolts, and the frame is used to fix the entire equipment. A planetary gear box is provided at one end of the main power device. The beneficial effects of the present application are as follows: when a torque overload occurs between the planetary gear box and the transmission device, the positioning plate retracts backward with the help of the oblique meshing teeth on the ratchet surface, and compresses the spring, so that the ratchet slips on the surface of the positioning plate, resulting in idling inside the planetary gear box, thereby protecting the transmission device from damage.

Description

Technical Field

[0001] The present application relates to the technical field of transmission devices, and in particular to a planetary gear transmission device. Background Art

[0002] Planetary gear transmission is an efficient and compact power transmission device widely used in modern industry and automation technology. Its unique structure and performance advantages make it stand out among many mechanical transmission devices.

[0003] After searching, the Chinese patent publication number CN102287510B discloses a novel planetary gear transmission device. Although the planet carrier and the outer friction plate of the device are matched by splines, the planetary gears are supported on the planet carrier by two self-aligning ball bearings, the output shaft is supported on the right flange by two deep groove ball bearings, and the inner friction plates are separated by disc springs, the beneficial effects are that it can achieve soft starting and speed regulation, and has the advantages of small size, compact structure, large load capacity, high transmission efficiency, and smooth operation. At the same time, it is low cost and easy to maintain. However, there is no overload protection mechanism inside the device, which means that overload will cause the gears to be subjected to stress beyond the design limit, resulting in gear deformation, tooth surface spalling, tooth root fracture and other failure forms. The bearings will also deform and fail due to the axial load and impact load generated by the overload, and the pillars will break or become unsoldered. The shaft may undergo elastic-plastic deformation or even fracture due to the action of strong torque.

[0004] After searching, the Chinese patent publication number CN119042306A discloses a lubricating oil circuit structure for a planetary gear transmission device. Although the device adopts a branched lubricating oil supply method to lubricate each component in turn, that is, the lubricating oil flows through the oil supply hole, the oil supply annular groove and the first lubricating oil inlet hole and then enters the first annular groove. The lubricating oil in the first annular groove enters the oil supply pipe and the sun gear oil injection pipe through the first lubricating oil outlet hole, thereby achieving efficient lubrication of each gear meshing surface, sliding bearing and journal, replacing the commonly used planetary carrier lubricating oil channel design. The coordination of the inlet hole, oil outlet hole and annular groove compensates for the loss along the way and reduces the oil supply capacity of the external oil station. However, due to the wear of the gears during long-term operation, a large amount of metal debris will be generated. Furthermore, the metal powder debris has a certain hardness and will circulate inside the equipment, pass through the gaps between parts, causing abrasive wear, and causing scratches, pressure marks, scrapes and other problems on the metal surface, and even causing metal fatigue. The metal powder will further wear the equipment, resulting in a decrease in the accuracy of key components such as gears and bearings, affecting the normal operation of the equipment, and may even cause serious mechanical failures. Summary of the Invention

[0005] One of the purposes of the present application is to provide a planetary gear transmission device to solve the problem that existing devices lack a protective mechanism, which easily leads to overload damage, and cannot solve the problem of abrasive wear caused by metal powder debris during long-term operation.

[0006] To achieve the above objectives, the technical solution adopted in the present application is: a planetary gear transmission device, including a base, a main power device, a main transmission shaft and a lubrication mechanism, wherein the main power device is installed on the top of the base, and the main power device is used to provide power for the entire equipment. One side of the base is connected to the frame by bolts, and the frame is used to fix the entire equipment. A planetary gearbox is provided at one end of the main power device, and the input end of the planetary gearbox is connected to the output end of the main power device by a shaft transmission. A planetary gear set is provided inside the planetary gearbox, and a protective mechanism is provided on one side of the planetary gearbox. A main transmission device is provided on one side of the protective mechanism, and one end of the protective mechanism is connected to the input end of the planetary gearbox by a shaft. The other end of the protective mechanism is provided with a main transmission shaft, and the protective mechanism is connected to the transmission gear inside the main transmission device through the main transmission shaft. A lubrication mechanism is provided at the bottom of the main transmission device, and the lubrication mechanism is used to lubricate the internal gears of the main transmission device. A circulation mechanism is provided on one side of the lubrication mechanism, and two circulation mechanisms are provided. The two circulation mechanisms are used to circulate lubricating oil inside the main transmission device. An output mechanism is provided on the top of the main transmission device, and the output mechanism is used for power output of the entire equipment.

[0007] Preferably, the protection mechanism includes an adjusting mechanism and an anti-overload mechanism, the adjusting mechanism is installed outside the anti-overload mechanism, the adjusting mechanism is used to adjust the pressure of the anti-overload mechanism, one end of the adjusting mechanism is connected to the planetary gearbox, the anti-overload mechanism is one end of the planetary gearbox, and the interior of the anti-overload mechanism is connected to the interior of the planetary gearbox through transmission, the anti-overload mechanism is located at the output end of the planetary gearbox, and can effectively prevent equipment damage caused by excessive torque. When the torque between the planetary gearbox and the main transmission device exceeds the design range, the anti-overload mechanism can achieve slippage through the internal mechanical structure (such as ratchet and positioning plate), thereby protecting the transmission device from damage due to overload stress, avoiding problems such as gear deformation, tooth surface peeling, tooth root fracture, etc. caused by overload, and at the same time preventing the bearing from deformation and failure due to axial load generated by overload, thereby extending the service life of the equipment.

[0008] Preferably, the anti-overload mechanism includes a second transmission shaft, one end of the second transmission shaft is connected to the inside of the planetary gear box, meshing teeth are distributed on the surface of the end portion of the second transmission shaft, a pressure plate is provided on the outside of the second transmission shaft, the end portion of the second transmission shaft is inserted into the inside of the positioning plate, a groove is provided on the surface of the positioning plate, the groove on the surface of the positioning plate is engaged with the surface of the ratchet, meshing teeth are distributed on the surface of the ratchet, the ratchet is sleeved on one end of the main transmission shaft, the meshing surface of the ratchet surface is a smooth slope structure, there is a gap between the end portion of the second transmission shaft and the positioning plate, the inner wall of the positioning plate is in sliding contact with the toothed surface outside the end portion of the second transmission shaft, and the ratchet and the positioning plate are in contact with the grooves and meshing teeth on the surface. The engagement forms a sliding structure that can stably transmit power during normal operation, but in the event of an overload, the positioning plate can slide through the smooth slope structure on the ratchet surface, thereby avoiding damage to the equipment caused by overload. When the torque exceeds the set threshold, the positioning plate will retract backward through the inclined structure of the ratchet, causing the ratchet to slip on the surface of the positioning plate, thereby causing the planetary gearbox to idle inside and protect the main transmission device from damage due to overload stress. In the anti-overload mechanism, there is a gap between the second transmission shaft and the positioning plate, and the inner wall of the positioning plate is in sliding contact with the external toothed surface of the end of the second transmission shaft, so that in the event of an overload, the positioning plate can slide, and the second spring can provide a restoring force.

[0009] Preferably, the adjusting mechanism includes a pressure plate, a groove is provided on the surface of the pressure plate, and the groove on the surface of the pressure plate is an annular structure, a ball is embedded in the annular groove on the surface of the pressure plate, the surface of the ball is in sliding contact with the positioning plate, a circular hole groove is provided inside the pressure plate, and the inner wall of the circular hole groove inside the pressure plate is in sliding contact with the outer wall of the second transmission shaft, an adjusting plate is provided on one side of the pressure plate, a second spring is provided between the adjusting plate and the pressure plate, the second spring is sleeved on the outside of the second transmission shaft, the outer wall of the adjusting plate is welded to the inner wall of the telescopic shell, the outside of the telescopic shell is rotatably connected to one end of the adjusting bolt, and the other end of the adjusting bolt is connected to the inside of the fixed shell Threaded connection, three adjusting bolts are distributed at equal intervals, the inner wall of the fixed shell is welded to the outer wall of the planetary gear box, and the annular groove on the surface of the pressure plate is embedded with balls. The balls are in sliding contact with the positioning plate, so that the pressure plate can apply uniform pressure to the positioning plate through the balls, while reducing friction and improving transmission efficiency. By rotating the adjusting bolt, the position of the telescopic shell can be changed, thereby pushing the adjusting plate to move. The movement of the adjusting plate will compress or relax the second spring, thereby changing the pressure of the pressure plate on the positioning plate. This pressure adjustment mechanism enables the equipment to flexibly adjust the protection threshold of the anti-overload mechanism according to different working conditions and load requirements.

[0010] Preferably, the lubricating mechanism includes an oil storage tank, which is mounted on the bottom of the main transmission device by bolts, and the interior of the oil storage tank and the bottom of the interior of the main transmission device are filled with lubricating oil, and a communicating groove is provided between the main transmission device and the oil storage tank, and the communicating groove is used for communication between the main transmission device and the oil storage tank, a magnetic rod is provided at the bottom of the oil storage tank, and a filter is provided on the outside of the bottom of the communicating groove, and the interior of the oil storage tank is divided into two upper and lower cavities by the filter, and the oil storage tank is connected to the main transmission device through the communicating groove, and the lubricating oil can flow freely between the two, so that the lubricating oil can be circulated in the main transmission device, ensuring that the transmission gear is always in a good lubricated state, and the lubricating oil splashes in the main transmission device, evenly lubricating each gear, reducing friction and wear between the gears, and improving transmission efficiency and service life of the equipment, and a magnetic rod is provided at the bottom of the oil storage tank, and metal debris (such as iron filings) in the lubricating oil will be absorbed by the magnetic rod, which can effectively remove impurities in the lubricating oil and maintain the cleanliness of the lubricating oil.

[0011] Preferably, the connecting groove is a bucket-shaped structure, the bottom and top of the connecting groove are open structures, a groove is provided at the bottom of the oil storage tank, a magnetic rod is provided at the bottom of the oil storage tank, there is a gap between the magnetic rod and the surface of the groove at the bottom of the oil storage tank, a threaded cap is mounted on one end of the magnetic rod, a hole groove is provided on one side of the oil storage tank, and the inner diameter of the hole groove is larger than the outer diameter of the magnetic rod, and the inside of the circular groove on one side of the bottom of the oil storage tank is threadedly connected to the threaded cap, so that the lubricating oil can smoothly flow from the main transmission device into the oil storage tank, and it is also convenient for the lubricating oil to flow back from the oil storage tank to the main transmission device. The connecting groove with a bucket-shaped structure can reduce the resistance of the lubricating oil during the flow process, ensure that the circulation of the lubricating oil is smoother, and the magnetic rod can freely absorb metal debris in the lubricating oil, and at the same time facilitate the installation and disassembly of the magnetic rod.

[0012] Preferably, the circulation mechanism includes an oil pump, two of which are provided, and the bottom input ends of the two oil pumps are connected to the upper cavity inside the oil storage tank, the top output end of the oil pump is connected to the circulation pipe, and the other end of the circulation pipe is connected to the inside of the main transmission box. The dual oil pump design can ensure that the lubricating oil circulates efficiently in the system. The two oil pumps work at the same time, which can provide a more stable lubricating oil flow, ensuring that the gears and bearings inside the main transmission device are always in a good lubrication state.

[0013] Preferably, the circulation pipe is made of copper-aluminum composite material, has a spiral structure, and is provided with fins on the outside of the circulation pipe. The fins are distributed in a circular shape with equal intervals, and the outer wall of the fin is welded to the inner wall of the air deflector. A fan is installed on the top of the air deflector, and both ends of the air deflector are open. The circulation pipe has a spiral structure, which increases the flow path length of the lubricating oil in the circulation pipe, thereby extending the heat exchange time between the lubricating oil and the external environment and improving the heat dissipation efficiency. The combination of the copper-aluminum composite material and the spiral structure enables the lubricating oil to dissipate heat more effectively during the circulation process, reduces the temperature of the lubricating oil, thereby extending the service life of the lubricating oil and reducing the problem of poor lubrication caused by high temperature. The forced convection of the fan can accelerate the air flow, take away the heat on the fins, and further improve the heat dissipation efficiency.

[0014] The top of the lower chuck is provided with an upper chuck, and the lower chuck is tightly fitted with the top surface of the lower chuck. A limiting shaft is provided on the top of the upper chuck, and a first spring is sleeved on the outside of the limiting shaft. The top of the limiting shaft is plugged with an output shaft, and the bottom end of the connecting shaft is connected to the gear inside the main transmission device, so that the power of the main transmission device can be transmitted to the output mechanism through the connecting shaft, ensuring that the power is efficiently and stably transmitted from the main transmission device to the output shaft, thereby realizing the overall power output function of the equipment. When the torque between the connecting shaft and the output shaft is overloaded, the upper chuck will compress the first spring, so that the fit between the upper chuck and the lower chuck is loosened, thereby causing the lower chuck to idle, which can effectively protect the main transmission device from damage by overload torque. When the overload condition is relieved, the first spring will push the upper chuck to fit closely with the lower chuck again, restore power transmission, and realize automatic reset function.

[0015] Preferably, the top surface of the lower chuck is provided with a hemispherical protrusion structure, and the hemispherical protrusion structure is distributed in a circular shape with equal intervals. The bottom of the upper chuck is provided with a groove, and the shape of the groove at the bottom of the upper chuck is consistent with the hemispherical protrusion structure on the top of the lower chuck. The outer wall of the output shaft is provided with a protrusion structure, and the shape of the outer wall of the limiting shaft is consistent with the shape of the slot at the top of the limiting shaft. There is a distance between the bottom end of the output shaft and the bottom end of the internal groove of the limiting shaft. The bottom of the upper chuck is provided with a groove that is consistent with the hemispherical protrusion structure of the lower chuck, ensuring that the upper chuck and the lower chuck can fit tightly during normal operation to achieve stable power transmission.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] (1) During the operation of the device, the planetary gearbox drives the second transmission shaft to rotate, and the second transmission shaft further drives the positioning plate to rotate. The rotation of the positioning plate causes the ratchet to rotate accordingly, and the ratchet further drives the transmission gear inside the main transmission device to rotate through the main transmission shaft. When a torque overload occurs between the planetary gearbox and the transmission device, the positioning plate retracts backward with the help of the oblique meshing teeth on the ratchet surface and compresses the spring, causing the ratchet to slip on the surface of the positioning plate, resulting in idling inside the planetary gearbox, thereby protecting the transmission device from damage. Once the torque between the planetary gearbox and the main transmission box returns to a normal level, the second spring pushes the pressure plate under its own elastic action, and the pressure plate then pushes the positioning plate to re-engage with the ratchet, restoring the transmission connection between the planetary gearbox and the main transmission device and realizing the automatic reset function. In addition, by rotating the adjusting bolt, the adjusting bolt can drive the telescopic shell to move, and when the telescopic shell moves, it drives the adjusting plate to move. The adjusting plate squeezes the second spring, thereby adjusting the pressure applied by the second spring to the positioning plate, thereby changing the maximum torque value that can be tolerated between the positioning plate and the ratchet, significantly improving the torque adjustment performance and adjustability of the device.

[0018] (2) When the device is in use, the transmission gear rotates to cause the lubricating oil inside the main transmission device to splash, so that the lubricating oil can evenly lubricate the various gears inside the main transmission device. Under the action of the oil pump, the lubricating oil inside the main transmission device can enter the oil storage tank through the connecting groove, and then, under the action of the magnetic rod inside the oil storage tank, the metal debris caused by the wear of the internal gears in the lubricating oil can be adsorbed and deposited on the surface of the magnetic rod, which is beneficial to the purification of the lubricating oil inside the main transmission device. The purified lubricating oil is filtered for a second time through the filter, and then, under the action of the oil pump, it re-enters the main transmission device through the circulation pipe to lubricate the gears. During the circulation of the lubricating oil inside the circulation pipe, it can dissipate heat through the fins outside the circulation pipe, and then the fan can quickly circulate the air inside the guide pipe to drive the heat on the fin surface, so that the lubricating oil can play a cooling effect during the circulation process, further improving the reliability of the device when in use.

[0019] (3) When the main transmission device drives the external device to rotate through the connecting shaft and the output shaft, when the torque between the connecting shaft and the output shaft is overloaded, the raised structure on the surface of the lower chuck will move out of the groove at the bottom of the upper chuck, and at the same time the upper chuck will compress the first spring on the top, so that the lower chuck is in an idling state, which is beneficial to protecting the main transmission device. When the torque between the connecting shaft and the output shaft returns to normal, the upper chuck will be engaged with the lower chuck under the push of the first spring, so that the connecting shaft can drive the output shaft to output power, further improving the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the circulation mechanism structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the output mechanism structure of the present invention.

[0025] Figure 6 Schematic diagram of the internal structure of the main transmission device of the present invention.

[0026] Figure 7 Schematic diagram of explosion of the protection mechanism of the present invention.

[0027] Figure 8 It is a schematic structural diagram of the protection mechanism of the present invention.

[0028] Figure 9 It is a front view structural schematic diagram of the present invention.

[0029] In the figure: 1. Base; 2. Main power device; 3. Output mechanism; 301. Connecting shaft; 302. Upper chuck; 303. Output shaft; 304. Limiting shaft; 305. First spring; 306. Lower chuck; 4. Planetary gearbox; 5. Protective mechanism; 501. Second transmission shaft; 502. Adjusting plate; 503. Second spring; 504. Pressure plate; 505. Ball bearing; 506. Positioning plate; 507. Ratchet; 508, telescopic shell; 509, adjusting bolt; 510, fixed shell; 6, main transmission shaft; 7, main transmission device; 8, lubrication mechanism; 801, oil storage tank; 802, connecting groove; 803, magnetic rod; 804, filter screen; 805, threaded cap; 9, circulation mechanism; 901, oil pump; 902, circulation pipe; 903, fin; 904, air guide cover; 905, fan; 10, frame; 11, transmission gear. DETAILED DESCRIPTION

[0030] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0032] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] One of the preferred embodiments of this application is as follows: Figures 1 to 9As shown, a planetary gear transmission device comprises a base 1, a main power device 2, a main transmission shaft 6 and a lubrication mechanism 8. The main power device 2 is mounted on the top of the base 1 and is used to provide power to the entire device. One side of the base 1 is connected to a frame 10 by bolts, and the frame 10 is used to fix the entire device. A planetary gear box 4 is provided at one end of the main power device 2. The input end of the planetary gear box 4 is connected to the output end of the main power device 2 by a shaft transmission. A planetary gear set is provided inside the planetary gear box 4. A protective mechanism 5 is provided on one side of the planetary gear box 4, and a main transmission device 7 is provided on one side of the protective mechanism 5. , one end of the protection mechanism 5 is connected to the input end of the planetary gearbox 4 through a shaft, and the other end of the protection mechanism 5 is provided with a main transmission shaft 6. The protection mechanism 5 is connected to the internal transmission gear 11 of the main transmission device 7 through the main transmission shaft 6. A lubrication mechanism 8 is provided at the bottom of the main transmission device 7. The lubrication mechanism 8 is used for lubricating the internal gears of the main transmission device 7. A circulation mechanism 9 is provided on one side of the lubrication mechanism 8. There are two circulation mechanisms 9. The two circulation mechanisms 9 are used for circulating the lubricating oil inside the main transmission device 7. An output mechanism 3 is provided on the top of the main transmission device 7. The output mechanism 3 is used for the overall power output of the equipment;The protection mechanism 5 includes an adjusting mechanism and an anti-overload mechanism. The adjusting mechanism is installed outside the anti-overload mechanism, and the adjusting mechanism is used to adjust the pressure of the anti-overload mechanism. One end of the adjusting mechanism is connected to the planetary gear box 4, one end of the anti-overload mechanism planetary gear box 4, and the interior of the anti-overload mechanism is connected to the interior of the planetary gear box 4 for transmission. The anti-overload mechanism includes a second transmission shaft 501, one end of the second transmission shaft 501 is connected to the interior of the planetary gear box 4, and meshing teeth are distributed on the surface of the end of the second transmission shaft 501. A pressure plate 504 is provided on the outside of the second transmission shaft 501, and the end of the second transmission shaft 501 is inserted into the interior of the positioning plate 506. A groove is provided on the surface of the positioning plate 506. The groove on the surface of the positioning plate 506 engages with the surface of the ratchet 507. The surface of the ratchet 507 is distributed with meshing teeth. The ratchet 507 is fitted on one end of the main transmission shaft 6, and the meshing surface of the ratchet 507 is a smooth slope structure. There is a gap between the end of the second transmission shaft 501 and the positioning plate 506, and the inner wall of the positioning plate 506 is connected to the first The toothed surfaces on the ends of the second transmission shafts 501 are in sliding contact. The adjusting mechanism includes a pressure plate 504. A groove is provided on the surface of the pressure plate 504, and the groove on the surface of the pressure plate 504 is annular. A ball 505 is embedded inside the annular groove on the surface of the pressure plate 504. The surface of the ball 505 is in sliding contact with the positioning plate 506. A circular hole is provided inside the pressure plate 504, and the inner wall of the circular hole inside the pressure plate 504 is in sliding contact with the outer wall of the second transmission shaft 501. An adjusting plate 502 is provided on one side of the pressure plate 504. A second spring 503 is provided between the adjusting plate 502 and the pressure plate 504. The second spring 503 is sleeved on the outside of the second transmission shaft 501. The outer wall of the adjusting plate 502 is welded to the inner wall of the telescopic shell 508. The outside of the telescopic shell 508 is rotatably connected to one end of the adjusting bolt 509. The other end of the adjusting bolt 509 is threadedly connected to the inside of the fixed shell 510. There are three adjusting bolts 509 distributed at equal intervals. The inner wall of the fixed shell 510 is welded to the outer wall of the planetary gear box 4.The main power device 2 is installed on the top of the base 1. It is the power source of the entire device. It transmits power to the input end of the planetary gearbox 4 through its output end. A planetary gear set is provided inside the planetary gearbox 4. The power of the main power device 2 is preliminarily decelerated and torque amplified by the planetary gear set. The planetary gear set can achieve efficient transmission and can adjust the transmission ratio as needed to meet different working requirements. When the device is in use, the planetary gearbox 4 drives the second transmission shaft 501 to rotate, and the second transmission shaft 501 drives the positioning plate 506 to rotate. When the positioning plate 506 rotates, it can drive the ratchet 507 to rotate, and then the ratchet 507 can drive the transmission gear 11 inside the main transmission device 7 to rotate through the main transmission shaft 6. When the torque between the planetary gearbox 4 and the transmission device is overloaded, the positioning plate 506 retracts backward through the oblique meshing teeth on the surface of the ratchet 507 and compresses the spring, so that the ratchet 507 can The surface of the positioning plate 506 slips, causing the planetary gearbox 4 to idle, thereby protecting the transmission device. When the torque between the planetary gearbox 4 and the main transmission box returns to normal, the second spring 503 can push the pressure plate 504 under the action of the second spring 503, so that the pressure plate 504 can push the positioning plate 506 to re-engage with the ratchet 507, thereby restoring the transmission between the planetary gearbox 4 and the main transmission device 7, thereby facilitating the automatic reset effect. By rotating the adjusting bolt 509, the adjusting bolt 509 can drive the telescopic housing 508 to move. The movement of the telescopic housing 508 can also drive the adjusting plate 502 to move, so that the adjusting plate 502 can squeeze the second spring 503, so that the pressure applied by the second spring 503 to the positioning plate 506 can be adjusted, thereby adjusting the maximum torque between the positioning plate 506 and the ratchet 507, further improving the adjustability of the device.

[0034] One of the preferred embodiments of this application is as follows: Figures 1 to 6As shown, a planetary gear transmission device, the lubrication mechanism 8 includes an oil storage tank 801, the oil storage tank 801 is installed on the bottom of the main transmission device 7 by bolts, the interior of the oil storage tank 801 and the bottom of the main transmission device 7 are filled with lubricating oil, a connecting groove 802 is provided between the main transmission device 7 and the oil storage tank 801, the connecting groove 802 is used for communication between the main transmission device 7 and the oil storage tank 801, a magnetic rod 803 is provided at the bottom of the oil storage tank 801, a filter screen 804 is provided on the outside of the bottom of the connecting groove 802, the interior of the oil storage tank 801 is divided into two cavities, the upper and lower cavities, the connecting groove 802 is a bucket-shaped structure, the bottom and top of the connecting groove 802 are open structures, and the bottom of the oil storage tank 801 is opened. There is a groove, a magnetic rod 803 is provided at the bottom of the oil storage tank 801, and there is a gap between the magnetic rod 803 and the surface of the groove at the bottom of the oil storage tank 801. A threaded cap 805 is set at one end of the magnetic rod 803, and a hole groove is provided on one side of the oil storage tank 801, and the inner diameter of the hole groove is larger than the outer diameter of the magnetic rod 803. The inner part of the circular groove on one side of the bottom of the oil storage tank 801 is threadedly connected with the threaded cap 805. The circulation mechanism 9 includes an oil pump 901. There are two oil pumps 901, and the bottom input ends of the two oil pumps 901 are connected to the upper end cavity inside the oil storage tank 801, and the top output end of the oil pump 901 is connected to the circulation pipe 902. The other end of the circulation pipe 902 is connected to the inside of the main transmission box. The circulation pipe 902 is made of copper-aluminum composite material. The tube 902 has a spiral structure, and the outside of the circulation tube 902 is covered with fins 903, which are distributed in a circular shape with equal spacing. The outer wall of the fin 903 is welded to the inner wall of the deflector 904, and a fan 905 is installed on the top of the deflector 904. The two ends of the deflector 904 are open. When the device is in use, the transmission gear 11 rotates to drive the internal lubricating oil of the main transmission device 7 to splash, so that the lubricating oil can evenly lubricate the various gears inside the main transmission device 7. Under the action of the oil pump 901, the lubricating oil inside the main transmission device 7 can enter the oil storage tank 801 through the connecting groove, and then under the action of the magnetic rod 803 inside the oil storage tank 801, the internal gears in the lubricating oil are Metal debris from wheel wear can be adsorbed and deposited on the surface of the magnetic bar 803, which is beneficial to purifying the lubricating oil inside the main transmission device 7. The purified lubricating oil is filtered twice through the filter 804, and then re-enters the main transmission device 7 through the circulation pipe 902 under the action of the oil pump 901 to lubricate the gears. During the circulation of the lubricating oil inside the circulation pipe 902, the heat can be dissipated through the fins 903 outside the circulation pipe 902, and then the air inside the guide pipe can be circulated quickly through the fan 905 to drive the heat on the surface of the fins 903, so that the lubricating oil can have a cooling effect during the circulation process, further improving the reliability of the device during use.

[0035] One of the preferred embodiments of this application is as follows: Figures 1 to 7As shown, a planetary gear transmission device, the output mechanism 3 includes a connecting shaft 301, one end of the bottom of the connecting shaft 301 is connected to the internal gear of the main transmission device 7, and a lower chuck 306 is welded to the top end of the connecting shaft 301. An upper chuck 302 is provided on the top of the lower chuck 306. The bottom surface of the upper chuck 302 is tightly fitted with the top surface of the lower chuck 306. A limiting shaft 304 is provided on the top of the upper chuck 302. A first spring 305 is sleeved on the outside of the limiting shaft 304. The output shaft 303 is plugged into the top of the limiting shaft 304. A hemispherical convex structure is provided on the top surface of the lower chuck 306. The hemispherical convex structures are distributed in an annular shape with equal spacing. A groove is provided at the bottom of the upper chuck 302, and the shape of the groove at the bottom of the upper chuck 302 is consistent with the hemispherical convex structure on the top of the lower chuck 306. The outer wall of the output shaft 303 is provided with a protruding structure, and the limiting shaft 30 The shape of the outer wall matches the shape of the slot at the top of the limiting shaft 304. There is a gap between the bottom end of the output shaft 303 and the bottom end of the inner groove of the limiting shaft 304. When the main transmission device 7 drives the external device to rotate through the connecting shaft 301 and the output shaft 303, when the torque between the connecting shaft 301 and the output shaft 303 is overloaded, the protruding structure on the surface of the lower chuck 306 will move out of the groove at the bottom of the upper chuck 302. At the same time, the upper chuck 302 will compress the first spring 305 at the top, so that the lower chuck 306 is in an idling state, which is beneficial to protecting the main transmission device 7. When the torque between the connecting shaft 301 and the output shaft 303 returns to normal, the upper chuck 302 will be engaged with the lower chuck 306 under the push of the first spring 305, so that the connecting shaft 301 can drive the output shaft 303 to output power, further improving the reliability of the device.

[0036] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A planetary gear transmission device, characterized in that: include: A base (1), a main power device (2), a main transmission shaft (6) and a lubricating mechanism (8); a main power device (2) is installed on the top of the base (1); the main power device (2) is used to provide power for the entire device; one side of the base (1) is connected to a frame (10) by bolts; the frame (10) is used to fix the entire device; one end of the main power device (2) is provided with a planetary gearbox (4); the input end of the planetary gearbox (4) is connected to the output end of the main power device (2) by shaft transmission; a planetary gear set is provided inside the planetary gearbox (4); a protective mechanism (5) is provided on one side of the planetary gearbox (4); one side of the protective mechanism (5) A main transmission device (7) is provided. One end of the protection mechanism (5) is connected to the input end of the planetary gear box (4) through a shaft. The other end of the protection mechanism (5) is provided with a main transmission shaft (6). The protection mechanism (5) is connected to the internal transmission gear (11) of the main transmission device (7) through the main transmission shaft (6). A lubricating mechanism (8) is provided at the bottom of the main transmission device (7). The lubricating mechanism (8) is used for lubricating the internal gears of the main transmission device (7). A circulation mechanism (9) is provided on one side of the lubricating mechanism (8). Two circulation mechanisms (9) are provided. The two circulation mechanisms (9) are used for circulating lubricating oil inside the main transmission device (7). The device (7) is provided with an output mechanism (3) at the top, and the output mechanism (3) is used for the power output of the entire device; the protection mechanism (5) includes an adjustment mechanism and an anti-overload mechanism, the adjustment mechanism is installed outside the anti-overload mechanism, the adjustment mechanism is used to adjust the pressure of the anti-overload mechanism, one end of the adjustment mechanism is connected to the planetary gear box (4), the anti-overload mechanism is located at one end of the planetary gear box (4), and the inside of the anti-overload mechanism is connected to the inside of the planetary gear box (4); the anti-overload mechanism includes a second transmission shaft (501), one end of the second transmission shaft (501) is connected to the inside of the planetary gear box (4), and the end surface of the second transmission shaft (501) is distributed with The second transmission shaft (501) is provided with a pressure plate (504) on the outside, the end of the second transmission shaft (501) is inserted into the interior of the positioning plate (506), the surface of the positioning plate (506) is provided with a groove, the surface groove of the positioning plate (506) is engaged with the surface of the ratchet (507), the surface of the ratchet (507) is provided with teeth, the ratchet (507) is sleeved on one end of the main transmission shaft (6), the surface of the ratchet (507) has a smooth slope structure, there is a gap between the end of the second transmission shaft (501) and the positioning plate (506), the inner wall of the positioning plate (506) is in sliding contact with the toothed surface outside the end of the second transmission shaft (501);The adjusting mechanism comprises a pressure plate (504), a surface of the pressure plate (504) is provided with a groove, and the groove on the surface of the pressure plate (504) is annular in structure, a ball (505) is embedded in the annular groove on the surface of the pressure plate (504), the surface of the ball (505) is in sliding contact with the positioning plate (506), a circular hole groove is provided in the interior of the pressure plate (504), and the inner wall of the circular hole groove in the pressure plate (504) is in sliding contact with the outer wall of the second transmission shaft (501), an adjusting disk (502) is provided on one side of the pressure plate (504), and the adjusting disk A second spring (503) is provided between (502) and the pressure plate (504), and the second spring (503) is sleeved on the outside of the second transmission shaft (501). The outer wall of the adjusting plate (502) is welded to the inner wall of the telescopic shell (508). The outer part of the telescopic shell (508) is rotatably connected to one end of the adjusting bolt (509), and the other end of the adjusting bolt (509) is threadedly connected to the inner part of the fixed shell (510). There are three adjusting bolts (509) distributed at equal intervals, and the inner wall of the fixed shell (510) is welded to the outer wall of the planetary gear box (4).

2. A planetary gear transmission according to claim 1, characterized in that: The lubricating mechanism (8) comprises an oil storage tank (801), the oil storage tank (801) being mounted on the bottom of the main transmission device (7) by means of bolts, the interior of the oil storage tank (801) and the interior bottom of the main transmission device (7) being filled with lubricating oil, a connecting groove (802) being provided between the main transmission device (7) and the oil storage tank (801), the connecting groove (802) being used for communication between the main transmission device (7) and the oil storage tank (801), a magnetic bar (803) being provided at the bottom of the oil storage tank (801), a filter screen (804) being provided outside the bottom of the connecting groove (802), and the interior of the oil storage tank (801) being divided into two upper and lower cavities by the filter screen (804).

3. A planetary gear transmission according to claim 2, characterized in that: The communicating groove (802) is in a bucket-shaped structure, and the bottom and top of the communicating groove (802) are in an open structure. The bottom of the oil storage tank (801) is provided with a groove. The bottom of the oil storage tank (801) is provided with a magnetic bar (803). There is a gap between the magnetic bar (803) and the surface of the groove at the bottom of the oil storage tank (801). One end of the magnetic bar (803) is fitted with a threaded cap (805). A hole groove is provided on one side of the oil storage tank (801), and the inner diameter of the hole groove is larger than the outer diameter of the magnetic bar (803). The inner part of the circular groove on one side of the bottom of the oil storage tank (801) is threadedly connected to the threaded cap (805).

4. A planetary gear transmission according to claim 1, characterized in that: The circulation mechanism (9) comprises an oil pump (901), two of which are provided, and the bottom input ends of the two oil pumps (901) are communicated with the upper cavity inside the oil storage tank (801), the top output ends of the oil pumps (901) are communicated with a circulation pipe (902), and the other end of the circulation pipe (902) is communicated with the interior of the main transmission box.

5. A planetary gear transmission device according to claim 4, characterized in that: The circulation pipe (902) is made of a copper-aluminum composite material and has a spiral structure. The circulation pipe (902) is provided with fins (903) on the outside of the circulation pipe (902). The fins (903) are distributed in a circular shape with equal spacing. The outer wall of the fin (903) is welded to the inner wall of the air guide cover (904). A fan (905) is installed on the top of the air guide cover (904). Both ends of the air guide cover (904) are open.

6. The planetary gear transmission device according to claim 1, characterized in that: The output mechanism (3) comprises a connecting shaft (301), one end of the bottom of the connecting shaft (301) is connected to the internal gear of the main transmission device (7), one end of the top of the connecting shaft (301) is welded with a lower chuck (306), an upper chuck (302) is arranged on the top of the lower chuck (306), the bottom surface of the upper chuck (302) is tightly fitted with the top surface of the lower chuck (306), a limiting shaft (304) is arranged on the top of the upper chuck (302), a first spring (305) is sleeved on the outside of the limiting shaft (304), and an output shaft (303) is plugged into the top of the limiting shaft (304).

7. A planetary gear transmission according to claim 6, characterized in that: The top surface of the lower chuck (306) is provided with a hemispherical protrusion structure, and the hemispherical protrusion structure is distributed in a circular shape with equal spacing. The bottom of the upper chuck (302) is provided with a groove, and the shape of the groove at the bottom of the upper chuck (302) is consistent with the hemispherical protrusion structure at the top of the lower chuck (306). The outer wall of the output shaft (303) is provided with a protrusion structure, and the shape of the outer wall of the limiting shaft (304) is consistent with the shape of the slot at the top of the limiting shaft (304). There is a distance between the bottom end of the output shaft (303) and the bottom end of the inner groove of the limiting shaft (304).

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