A gear structure for a reduction motor that works for a long time and under high load

Abstract

A gear structure of a reduction motor for long-time and high-load operation provided by the present invention belongs to the technical field of gear transmission devices, and includes an active shaft assembly, a splash-proof box assembly, a driven shaft assembly, a driven gear component, and an oil circulation component; the driven gear component includes a gear support frame component, a split gear component, and a fastening strip; the active shaft assembly is connected to the motor through a coupling; the driven shaft assembly penetrates through the splash-proof box assembly; the two gear support frame components and the driven shaft assembly are fixedly connected by bolts; the split gear component is connected to the gear support frame component; the fastening strip is connected to the gear support frame component; lubricating oil flows into the first rotary joint of the driven shaft assembly from the splash-proof box drain pipe of the splash-proof box assembly through the oil circulation component. When a gear in a certain area of the driven gear component needs to be replaced, one of the split gear components can be quickly replaced with the two gear support frame components remaining fixed, with short time and low cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of gear transmission devices, and particularly relates to a gear structure of a reduction motor for long-term and high-load operation. Background Art

[0002] A reduction motor is an integrated drive device that combines a motor and a speed reducer. Through the drive of the motor and the reduction ratio of the reduction device, it can output the required low-speed and high-torque power. Since gear transmission can provide a reduction ratio of 10:1 to 1000:1 or even higher, it is very suitable for the application of reduction motors. That is to say, compared with other transmission methods, gear transmission can achieve a larger reduction ratio range, and the gear transmission technology is relatively mature, which can provide efficient, low-noise, and durable performance. Therefore, reduction motors using gear transmission are widely used in industrial mechanical equipment such as chemical mixing and elevators. In these types of equipment, the reduction motors are usually vertically placed, that is, the input shaft and output shaft of the reduction motors are vertically placed. As the speed regulation range increases, the reduction motors are developing towards long-term operation and high-load.

[0003] The authorized announcement number CN115306882B provides a gear structure of a reduction motor that can reduce wear, including a first tooth plate, and serrated block a integrally installed on the outer side surfaces around the first tooth plate; a second tooth plate is installed below the first tooth plate, and fixing through grooves for installing and fixing with an external shaft rod are provided at the central positions of both the first tooth plate and the second tooth plate; a first installation groove is provided in the first tooth plate at equal angles with the center of the first tooth plate as the center. This gear structure of the reduction motor that can reduce wear is provided with an adjusting column. Through the setting of the adjusting column, the outer side surface of the adjusting column protrudes from the surfaces of serrated block a and serrated block b, reducing the contact area between serrated block b and serrated block b in two meshing gear structures. Therefore, the contact area when multiple gear structures are used can be reduced, thereby reducing the friction force and the wear degree of serrated block a and serrated block b.

[0004] When the reduction motor is vertically placed and the reduction motor develops towards a long-term and high-load structure, in order to improve strength and load-bearing capacity, the transmission ratio will increase, and the number of teeth of the driven gear will inevitably increase. However, an excessive number of teeth will increase the gear size and weight, affecting the transmission efficiency. If the driven gear still adopts the integral structure in the existing technology, its outer dimension is large, the overall weight is heavy, and the processing difficulty is high. Even though the wear can be reduced to a certain extent by adjusting the processing accuracy or immersing the gear in lubricating oil for heat dissipation, with long-term high-load operation, due to the inconsistent heat dissipation degree of the driven gear and the possible presence of solid impurities or the inability to cool down in time in the gearbox, it will exacerbate the situation of the driven gear. Still, the driven gear needs to be replaced as a whole, which is time-consuming and laborious and brings too high maintenance costs. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a speed reduction motor gear structure for long-term and high-load operation, effectively solving the problems in the prior art that when the speed reduction motor is placed vertically, if the driven gear still adopts an integral structure, its outer dimension is large, the overall weight is heavy, and the processing difficulty is high. Even though the wear can be reduced to a certain extent by machining accuracy or immersing the gear in lubricating oil for heat dissipation, with long-term high-load operation, due to the inconsistent heat dissipation degree of the driven gear and the possible existence of solid impurities or the inability to cool down in time in the lubricating oil in the gearbox, the wear of the driven gear will be aggravated, and the driven gear still needs to be replaced as a whole, which is time-consuming and laborious and brings too high maintenance costs.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A speed reduction motor gear structure for long-term and high-load operation, including a motor, a driving shaft assembly, a splash-proof box assembly, a driven shaft assembly, a driven gear component, and an oil circulation component; the driven gear component includes a gear support frame component, a split gear component, and a fastening strip; the driving shaft assembly is connected to the motor through a coupling; the driven shaft assembly penetrates through the splash-proof box assembly; the two gear support frame components and the driven shaft assembly are fixedly connected by bolts; the split gear component is connected to the gear support frame component; the fastening strip is connected to the gear support frame component; the lubricating oil flows into the first rotary joint of the driven shaft assembly from the splash-proof box drain pipe of the splash-proof box assembly through the oil circulation component.

[0007] Preferably, the driving shaft assembly includes a driving shaft, a driving gear, and a first bearing seat assembly. The driving gear penetrates through the driving shaft and is connected thereto. The driving shaft assembly is connected to the splash-proof box assembly through the first bearing seat assembly. The splash-proof box assembly further includes a splash-proof box housing, a splash-proof box top plate, and a splash-proof box bottom plate. The splash-proof box drain pipe is located below the meshing position of the driving gear and the driven gear component.

[0008] Preferably, the driven shaft assembly further includes a driven shaft and an upper end plate. The upper end plate is located at the top of the driven shaft and is fixedly connected thereto. The first rotary joint is located at the top of the upper end plate and is connected thereto. A gear installation section is provided on the outer periphery of the driven shaft. The driven shaft is provided with a gear oil inlet main port. A plurality of gear oil inlet ports are provided on the gear installation section, and the gear oil inlet ports are communicated with the gear oil inlet main port.

[0009] Preferably, the gear support frame assembly includes a main connection plate, a semi-circular connection frame, a gear oil pipe, a reinforcing rib, and a gear insertion box; a second through hole and an arc-shaped arch are provided on the main connection plate, and bolts pass through the second through hole to lock two of the gear support frame assemblies so that they are clamped within the gear installation section. The semi-circular connection frame is located outside the main connection plate and is fixedly connected thereto. One end of the gear oil pipe is connected to the arc-shaped arch, and the other end is connected to the semi-circular connection frame. A reinforcing rib is further provided between the arc-shaped arch and the semi-circular connection frame. Two of the gear insertion boxes are provided on the outer periphery of the semi-circular connection frame. A first through hole is provided on the gear support frame assembly. First grooves are provided on both the front and back surfaces of the semi-circular connection frame. A first boss is provided on the outer periphery of the semi-circular connection frame along the first groove, and a second boss is provided on the inner periphery of the semi-circular connection frame along the first groove. A first nut is fixedly connected to the second boss. Through holes are provided on both the first boss and the second boss. The gear insertion box is an annular box, and a third through hole is provided on the gear insertion box. A second nut is fixedly connected to the inner side of the third through hole close to the gear insertion box.

[0010] Preferably, the split gear assembly includes a split gear and a reinforcing plate. The reinforcing plate is fixedly connected to the split gear. A second groove is provided on the inner surface of the split gear, and a fourth through hole is provided on the outer surface of the split gear. Oil throwing holes are provided at the addendum circle and the dedendum circle of the split gear. Bolts pass through the fourth through hole and the second nut and are locked to achieve the fastening connection between the gear support frame assembly and the split gear assembly.

[0011] Preferably, the fastening strip is annular, and a fifth through hole is provided on the fastening strip.

[0012] Preferably, the oil circulation assembly includes a first oil pipeline, a first oil storage tank, a second oil pipeline, a second oil storage tank, and a third oil pipeline connected in sequence. The first oil pipeline is communicated with the anti-splash box drain pipe, the third oil pipeline is communicated with the first rotary joint. An oil filter, a first stop valve, and an oil cooler are provided on the first oil pipeline. A first liquid level sensor and a refueling pipeline are provided on the first oil storage tank. A second stop valve and a booster pumping pump are provided on the second oil pipeline. A second liquid level sensor is provided on the second oil storage tank. A flow regulating valve is provided on the third oil pipeline.

[0013] The present invention provides a usage method for a reduction motor gear structure for long-term and high-load operation. The usage method is a usage method S1 in which the driven shaft end far from the first rotary joint is connected to other connecting parts, and includes the following steps:

[0014] S11. When the driving gear meshes with the driven gear assembly, the lubricating oil under pressure flows from the second oil storage barrel into the first rotary joint through the third oil pipeline and falls into the total gear oil inlet.

[0015] S12. The oil in the total gear oil inlet flows into the closed area formed by the gear insertion box and the split gear assembly through the gear oil inlet and the first through hole, absorbing the heat generated during the meshing process of the driving gear and the driven gear assembly.

[0016] S13. The centrifugal force generated when the driven gear assembly rotates is used to throw out the lubricating oil in the closed area formed by the gear insertion box and the split gear assembly through the oil throwing holes, lubricating the driving gear and reducing gear wear during the meshing process.

[0017] S14. The thrown-out lubricating oil is first filtered and then cooled through the anti-splash box drain pipe and enters the first oil storage barrel, and is pumped into the second oil storage barrel.

[0018] Furthermore, it further includes a fourth oil pipeline; the driven shaft assembly further includes a lower end plate and a second rotary joint. The driven shaft is provided with a total gear oil outlet, and a plurality of gear oil outlets are also provided on the gear installation section. The gear oil outlets are located below the gear oil inlet, and the gear oil outlets are communicated with the total gear oil outlet. There is a solid section between the total gear oil inlet and the total gear oil outlet. One end of the fourth oil pipeline is connected to the second rotary joint, and the other end is communicated with the first oil pipeline. A drain compression assembly is arranged in the total gear oil outlet. The drain compression assembly includes a moving ring, a spring and a fixed ring. The spring is located on the top of the lower end plate, the moving ring is located on the top of the spring, the fixed ring penetrates through the moving ring and the spring, a shaft stop is arranged on the top of the fixed ring, and drain ports are arranged on the outer periphery of the fixed ring.

[0019] The present invention also provides another usage method of the reduction motor gear structure for long-term and high-load operation. The usage method is S2 in which the shaft end of the driven shaft far from the first rotary joint is not connected to other connectors, and it includes the following steps:

[0020] S21. When the driving gear meshes with the driven gear assembly, the lubricating oil under pressure enters the total gear oil inlet.

[0021] S22. Through the gear oil inlet, the lubricating oil flows into the closed area formed by the gear insertion box and the split gear assembly through the first through hole, absorbing the heat generated during the meshing process of the driving gear and the driven gear assembly.

[0022] S23. When the driven gear component rotates, part of the lubricating oil in the closed area formed by the gear insertion box and the split gear assembly is thrown out through the oil slinging holes due to the centrifugal force generated, lubricating the driving gear and reducing gear wear during meshing. The other part falls from the first through hole through the gear oil outlet into the area above the total gear oil outlet where the oil drainage compression assembly is located.

[0023] S24. The thrown-out lubricating oil is first filtered and then cooled through the anti-splash box oil drain pipe and enters the first oil storage barrel. As the volume of the lubricating oil above the oil drainage compression assembly increases, the spring is compressed, the moving ring moves downward, and the lubricating oil falls into the second rotary joint from the oil drain port and enters the first oil storage barrel through the fourth oil pipeline after cooling. As the volume of the lubricating oil above the oil drainage compression assembly decreases, the spring returns to its original state.

[0024] S25. Pump the lubricating oil in the first oil storage barrel into the second oil storage barrel.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) A gear structure of a reduction motor for long-term and high-load operation provided by the present invention can be suitable for long-term and high-load operation through the settings of a motor, a driving shaft assembly, an anti-splash box assembly, a driven shaft assembly, a driven gear component, and an oil circulation assembly. It has a compact structure, is a hollow structure as a whole, has a light weight, and a stable transmission efficiency.

[0027] (2) A gear structure of a reduction motor for long-term and high-load operation provided by the present invention has a gear installation section provided on the driven shaft, so that the driven gear component is clamped in the driven shaft, avoiding the up-and-down shaking situation of the existing gears. At the same time, the two gear support frame assemblies are connected by fastening strips, ensuring the connection reliability of the present invention.

[0028] (3) A gear structure of a reduction motor for long-term and high-load operation provided by the present invention can quickly replace one of the split gear assemblies in a short time and at low cost when a gear in a certain area of the driven gear component needs to be replaced while the two gear support frame assemblies remain fixed.

[0029] (4) A gear structure of a reduction motor for long-term and high-load operation provided by the present invention has a cavity between the gear insertion box and the split gear assembly, which can facilitate the lubricating oil to dissipate heat inside it and absorb heat. At the same time, the lubricating oil is thrown out through the slinging holes to lubricate the outside of the main gear and the driven gear component, ensuring the uniformity of gear transmission heat dissipation.

[0030] (5) The deceleration motor gear structure provided by the present invention for long-time and high-load operation can automatically discharge the lubricating oil above the total gear oil outlet through the setting of the oil drainage compression component, so that the lubricating oil volume can be increased at the total gear oil inlet, which can quickly reduce the temperature of the driven gear component and reduce the deformation caused by heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall schematic diagram of Embodiment 1 of the present invention;

[0032] Figure 2 is the connection schematic diagram of the driven shaft assembly and the driven gear component of the present invention;

[0033] Figure 3 is the internal schematic diagram of the driven shaft assembly of Embodiment 1 of the present invention;

[0034] Figure 4 is the three-dimensional schematic diagram of the driven gear component of the present invention;

[0035] Figure 5 is the structural schematic diagram of the gear support frame assembly of the present invention;

[0036] Figure 6 is of the present invention Figure 5 another perspective schematic diagram;

[0037] Figure 7 is the structural schematic diagram of the split gear assembly of the present invention;

[0038] Figure 8 is of the present invention Figure 7 another perspective schematic diagram;

[0039] Figure 9 is the half-sectional connection schematic diagram of the split gear assembly and the gear insertion box of the present invention;

[0040] Figure 10 is the structural schematic diagram of the fastening strip of the present invention;

[0041] Figure 11 is the overall schematic diagram of Embodiment 2 of the present invention;

[0042] Figure 12 is the three-dimensional schematic diagram of the driven shaft assembly of Embodiment 2 of the present invention;

[0043] Figure 13 is the internal schematic diagram of the driven shaft assembly of Embodiment 2 of the present invention when the spring is in the normal state;

[0044] Figure 14 is the internal schematic diagram of the driven shaft assembly of Embodiment 2 of the present invention when the spring is in the compressed state;

[0045] Figure 15 It is a schematic structural diagram of the oil drainage and compression assembly in Embodiment 2 of the present invention.

[0046] In the figure: 100, the driving shaft assembly; 110, the driving shaft; 120, the driving gear; 130, the first bearing seat assembly; 200, the anti-splash box assembly; 210, the anti-splash box housing; 220, the anti-splash box top plate; 230, the anti-splash box bottom plate; 240, the anti-splash box drain pipe; 300, the driven shaft assembly; 310, the driven shaft; 311, the gear mounting section; 312, the total gear inlet; 313, the gear inlet; 314, the total gear outlet; 315, the gear outlet; 320, the upper end plate; 330, the first rotary joint; 340, the lower end plate; 350, the second rotary joint; 400, the oil drainage and compression assembly; 410, the moving ring; 420, the spring; 430, the fixed ring; 431, the shaft stop; 432, the drain port; 500, the gear support frame assembly; 501, the first through hole; 510, the main connecting plate; 511, the second through hole; 512, the arc arch; 520, the semi-circular connecting frame; 521, the first groove; 522, the first boss; 523, the second boss; 524, the first nut; 530, the gear oil pipe; 540, the reinforcing rib; 550, the gear insertion box; 551, the third through hole; 552, the second nut; 600, the split gear assembly; 610, the split gear; 611, the second groove; 612, the fourth through hole; 613, the oil slinging hole; 620, the reinforcing plate; 700, the fastening strip; 701, the fifth through hole; 800, the oil circulation assembly; 810, the first oil pipeline; 811, the oil filter; 812, the first stop valve; 813, the oil cooler; 820, the first oil storage barrel; 821, the first liquid level sensor; 830, the second oil pipeline; 831, the second stop valve; 832, the booster pumping and liquid extraction pump; 840, the oil replenishing pipeline; 850, the second oil storage barrel; 851, the second liquid level sensor; 860, the third oil pipeline; 861, the flow regulating valve; 900, the fourth oil pipeline. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0048] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0049] It should be understood that in the description of the invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense.

[0050] Embodiment 1: Refer to the appendix Figures 1 to 10 , a speed reduction motor gear structure for long-term and high-load operation provided in this Embodiment 1 includes a motor, a driving shaft assembly 100, a splash-proof box assembly 200, a driven shaft assembly 300, a driven gear component, and an oil circulation assembly 800.

[0051] The driven gear component includes a gear support frame assembly 500, a split gear assembly 600, and a fastening strip 700; the driving shaft assembly 100 is connected to the motor (not shown in the figure) through a coupling (not shown in the figure), and the driving shaft assembly 100 extends into the splash-proof box assembly 200; the driven shaft assembly 300 penetrates through the splash-proof box assembly 200; the gear support frame assembly 500, the split gear assembly 600, and the fastening strip 700 are all located inside the splash-proof box assembly 200, and the two gear support frame assemblies 500 and the driven shaft assembly 300 are fixedly connected by bolts; the split gear assembly 600 is connected to the gear support frame assembly 500; the fastening strip 700 is connected to the gear support frame assembly 500; lubricating oil flows into the first rotary joint 330 of the driven shaft assembly 300 through the splash-proof box drain pipe 240 of the splash-proof box assembly 200 by the oil circulation assembly 800.

[0052] The driving shaft assembly 100 includes a driving shaft 110, a driving gear 120, and a first bearing seat assembly 130. The driving gear 120 penetrates through the driving shaft 110 and is connected thereto. The driving shaft assembly 100 is connected to the splash-proof box assembly 200 through the first bearing seat assembly 130. The splash-proof box assembly 200 is fixedly connected through a support (not shown in the figure). The splash-proof box assembly 200 further includes a splash-proof box housing 210, a splash-proof box top plate 220, and a splash-proof box bottom plate 230. The splash-proof box top plate 220 is located at the top of the splash-proof box housing 210 and is connected thereto. The splash-proof box bottom plate 230 is located at the bottom of the splash-proof box housing 210 and is connected thereto. The splash-proof box drain pipe 240 is located below the meshing position of the driving gear 120 and the driven gear component.

[0053] The driven shaft assembly 300 further includes a driven shaft 310 and an upper end plate 320. The upper end plate 320 is located at the top of the driven shaft 310 and is fixedly connected thereto. The first rotary joint 330 is located at the top of the upper end plate 320 and is connected thereto. A gear mounting section 311 is provided on the outer periphery of the driven shaft 310. The diameter of the gear mounting section 311 is smaller than the nominal diameter of the driven shaft 310. An inner hole at one end of the driven shaft 310 near the upper end plate 320 is provided with a gear oil inlet header 312. A plurality of gear oil inlets 313 are provided on the gear mounting section 311. The gear oil inlets 313 communicate with the gear oil inlet header 312.

[0054] It should be noted that the shaft end of the driven shaft 310 away from the first rotary joint 330 in this Embodiment 1 is connected to other connecting members, such as a coupling.

[0055] The gear support frame assembly 500 includes a main connecting plate 510, a semi-circular connecting frame 520, a gear oil pipe 530, a reinforcing rib 540, and a gear insertion box 550. The main connecting plate 510 is provided with a second through hole 511 and an arc-shaped arch 512. Bolts pass through the second through hole 511 to lock two gear support frame assemblies 500 so that they are clamped within the gear mounting section 311. The semi-circular connecting frame 520 is located outside the main connecting plate 510 and is fixedly connected thereto. One end of the gear oil pipe 530 is connected to the arc-shaped arch 512, and the other end is connected to the semi-circular connecting frame 520. A reinforcing rib 540 is further provided between the arc-shaped arch 512 and the semi-circular connecting frame 520. Two gear insertion boxes 550 are provided on the outer periphery of the semi-circular connecting frame 520. The gear support frame assembly 500 is provided with a first through hole 501. The first through hole 501 penetrates the gear oil pipe 530. Lubricating oil flows between the inner surface of the arc-shaped arch 512 and the gear insertion box 550 through the first through hole 501. First grooves 521 are provided on both the front and back surfaces of the semi-circular connecting frame 520. A first boss 522 is provided on the outer periphery of the semi-circular connecting frame 520 along the first groove 521. A second boss 523 is provided on the inner periphery of the semi-circular connecting frame 520 along the first groove 521. A first nut 524 is fixedly connected to the second boss 523. Through holes are provided on both the first boss 522 and the second boss 523. The gear insertion box 550 is an annular box. The gear insertion box 550 is provided with a third through hole 551. A second nut 552 is fixedly connected to the inner side of the third through hole 551 close to the gear insertion box 550.

[0056] The split gear assembly 600 includes a split gear 610 and a reinforcing plate 620. The reinforcing plate 620 is fixedly connected to the split gear 610. A second groove 611 is provided on the inner surface of the split gear 610, a fourth through hole 612 is provided on the outer surface of the split gear 610, and oil slinging holes 613 are provided at the addendum circle and dedendum circle of the split gear 610. The bolt passes through the fourth through hole 612 and the second nut 552 and is locked to realize the fastening connection between the gear support frame assembly 500 and the split gear assembly 600.

[0057] The fastening strip 700 is annular, and a fifth through hole 701 is provided on the fastening strip 700. The bolt passes through the through hole of the first boss 522, the fifth through hole 701, the through hole of the second boss 523, and the first nut 524 in sequence and is locked to further improve the connection reliability of the two gear support frame assemblies 500.

[0058] The oil circulation assembly 800 includes a first oil pipeline 810, a first oil storage barrel 820, a second oil pipeline 830, a second oil storage barrel 850, and a third oil pipeline 860 connected in sequence. The first oil pipeline 810 is communicated with the splash-proof box drain pipe 240, the third oil pipeline 860 is communicated with the first rotary joint 330. An oil filter 811, a first stop valve 812, and an oil cooler 813 are provided on the first oil pipeline. A first liquid level sensor 821 and a refueling pipeline 840 are provided on the first oil storage barrel 820. A second stop valve 831 and a booster liquid extraction pump 832 are provided on the second oil pipeline 830. A second liquid level sensor 851 is provided on the second oil storage barrel 850. A flow regulating valve 861 is provided on the third oil pipeline 860.

[0059] It should be noted that a certain liquid level needs to be maintained in the first oil storage barrel 820. When the liquid level entering the first oil storage barrel 820 through the first oil pipeline 810 is lower than the low level set by the first liquid level sensor 821, the valve on the refueling pipeline 840 can be opened to refuel the first oil storage barrel 820. When the liquid level of the first oil storage barrel 820 reaches the high level set by the first liquid level sensor 821, the valve on the refueling pipeline 840 is closed to stop refueling the first oil storage barrel 820. Similarly, a certain liquid level also needs to be ensured in the second oil storage barrel 850, and the lubricating oil in the second oil storage barrel 850 has a certain pressure. The above liquid levels are mature existing technologies and can be automatically controlled by connecting to a PLC control system.

[0060] Embodiment 1 of the present invention also provides a usage method of a reduction motor gear structure for long-term and high-load operation. The usage method is the usage method S1 in which the driven shaft end far from the first rotary joint is connected to other connectors, and includes the following steps:

[0061] S11. When the driving gear 120 meshes with the driven gear component, the lubricating oil under pressure flows from the second oil storage barrel 850 into the first rotary joint 330 through the third oil pipeline 860 and then falls into the total gear inlet 312.

[0062] S12. The oil in the total gear inlet 312 flows through the gear inlet 313 and into the enclosed area formed by the gear insertion box 550 and the split gear assembly 600 through the first through hole 501, absorbing the heat generated during the meshing process of the driving gear 120 and the driven gear component.

[0063] S13. Utilize the centrifugal force generated during the rotation of the driven gear component to throw out the lubricating oil in the enclosed area formed by the gear insertion box 550 and the split gear assembly 600 through the oil slinger holes 613 to lubricate the driving gear 120 and reduce gear wear during the meshing process.

[0064] S14. The thrown-out lubricating oil is first filtered and then cooled through the anti-splash box drain pipe 240 and enters the first oil storage barrel 820, and is pumped into the second oil storage barrel 850 as needed.

[0065] Embodiment 2: Refer to the appendix Figure 2 、 Figures 4 to 15 . A speed reduction motor gear structure for long-term and high-load operation provided in this Embodiment 2 still includes a motor, a driving shaft assembly 100, an anti-splash box assembly 200, a driven shaft assembly 300, a driven gear component, and an oil circulation assembly 800.

[0066] Different from Embodiment 1, the shaft end of the driven shaft 310 far from the first rotary joint 330 in this Embodiment 2 is not connected to other connecting parts. Gears, pulleys, sprockets, etc. can be installed on the driven shaft 310, while a lower end plate 340 and a second rotary joint 350 are installed on the shaft end of the driven shaft 310 of the first rotary joint 330. At the same time, a fourth oil pipeline 900 needs to be added.

[0067] The lower end plate 340 is located at the bottom of the driven shaft 310 and is fixedly connected thereto. The second rotary joint 350 is located at the bottom of the lower end plate 340 and is connected thereto. An inner hole at one end of the driven shaft 310 close to the lower end plate 340 is provided with a total gear oil outlet 314, and a number of gear oil outlets 315 are also provided on the gear installation section 311. The gear oil outlets 315 are located below the gear inlet 313. The gear oil outlets 315 are communicated with the total gear oil outlet 314. There is a solid section between the total gear inlet 312 and the total gear oil outlet 314. One end of the fourth oil pipeline 900 is connected to the second rotary joint 350, and the other end is communicated with the first oil pipeline 810. An oil cooler 813 is located at the rear end of the fourth oil pipeline 900. A drain compression assembly 400 is provided in the total gear oil outlet 314.

[0068] The oil drainage and compression assembly 400 includes a moving ring 410, a spring 420, and a fixed ring 430. The spring 420 is located on top of the lower end plate 340, the moving ring 410 is located on top of the spring 420, the fixed ring 430 passes through the moving ring 410 and the spring 420, a shaft stopper 431 is provided on the top of the fixed ring 430, and an oil drainage port 432 is formed on the outer periphery of the fixed ring 430.

[0069] Embodiment 2 further provides a usage method of a speed reduction motor gear structure for long-term and high-load operation. The usage method is the usage method S2 in which the shaft end of the driven shaft away from the first rotary joint is not connected to other connectors, and includes the following steps:

[0070] S21, when the driving gear 120 meshes with the driven gear component, lubricant under pressure enters the total gear oil inlet 312.

[0071] S22, through the gear oil inlet 313, the lubricating oil flows into the closed area formed by the gear insertion box 550 and the split gear assembly 600 through the first through hole 501, and absorbs the heat generated during the meshing of the driving gear 120 and the driven gear component.

[0072] S23, using the centrifugal force generated when the driven gear component rotates, part of the lubricating oil in the closed area formed by the gear insertion box 550 and the split gear assembly 600 is thrown out through the oil slinging holes 613 to lubricate the driving gear 120, reducing gear wear during meshing, and the other part falls from the first through hole 501 through the gear oil outlet 315 into the area of the total gear oil outlet 314 located above the oil drainage and compression assembly 400.

[0073] S24, the thrown-out lubricating oil is first filtered and then cooled through the anti-splash box oil drain pipe 240 and enters the first oil storage barrel 820. As the volume of the lubricating oil above the oil drainage and compression assembly 400 increases, the spring 420 is compressed, the moving ring 410 moves downward, the lubricating oil falls into the second rotary joint 350 from the oil drainage port 432, and enters the first oil storage barrel 820 through the fourth oil pipeline 900 after cooling. As the volume of the lubricating oil above the oil drainage and compression assembly 400 decreases, the spring 420 is restored.

[0074] S25, pump the lubricating oil in the first oil storage barrel 820 into the second oil storage barrel 850 as needed.

[0075] It should be noted that in Embodiment 2, the flow rate of the flow regulating valve 861 can be adjusted to the maximum, so that the lubricating oil entering the split gear assembly 600 through the total gear oil inlet 312 can be divided into two parts. One part is thrown out through the oil slinging holes 613, and the other part is intermittently discharged through the oil drainage and compression assembly 400, which can quickly reduce the temperature of the driven gear component and reduce the deformation caused by heat generation.

[0076] Further, in Embodiment 2, the number of the first through holes 501 is half of that in Embodiment 1. At the same time, the number of the gear oil pipes 530 in Embodiment 2 can also be half of the number of the gear oil pipes 530 in Embodiment 1. However, due to standardized manufacturing and considering the symmetry of the structure, the structures of the gear support frame assemblies 500 in Embodiment 2 and Embodiment 1 are usually set to be the same.

[0077] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear structure of a reduction motor for long-time and high-load operation, including a motor, characterized in that, It includes a driving shaft assembly (100), a splash-proof box assembly (200), a driven shaft assembly (300), a driven gear component, and an oil circulation assembly (800); The driven gear component includes a gear support frame assembly (500), a split gear assembly (600), and a fastening strip (700); the driving shaft assembly (100) is connected to a motor through a coupling; the driven shaft assembly (300) passes through the splash-proof box assembly (200); the two gear support frame assemblies (500) and the driven shaft assembly (300) are fixedly connected by bolts; the split gear assembly (600) is connected to the gear support frame assembly (500); the fastening strip (700) is connected to the gear support frame assembly (500); lubricating oil flows into the first rotary joint (330) of the driven shaft assembly (300) through the splash-proof box drain pipe (240) of the splash-proof box assembly (200) by means of the oil circulation assembly (800); The driven shaft assembly (300) further includes a driven shaft (310) and an upper end plate (320). A gear mounting section (311) is provided on the outer circumference of the driven shaft (310). A gear oil inlet main port (312) is formed in the driven shaft (310). A number of gear oil inlets (313) are formed in the gear mounting section (311), and the gear oil inlets (313) are communicated with the gear oil inlet main port (312); The gear support frame assembly (500) includes a main connecting plate (510), a semi-circular connecting frame (520), a gear oil pipe (530), a reinforcing rib (540), and a gear insertion box (550); The split gear assembly (600) includes a split gear (610) and a reinforcing plate (620). Oil throwing holes (613) are provided at the addendum circle and the dedendum circle of the split gear (610); The oil circulation assembly (800) includes a first oil pipeline (810), a first oil storage barrel (820), a second oil pipeline (830), a second oil storage barrel (850), and a third oil pipeline (860) connected in sequence. The first oil pipeline (810) is communicated with the splash-proof box drain pipe (240), and the third oil pipeline (860) is communicated with the first rotary joint (330); It further includes a fourth oil pipeline (900); the driven shaft assembly (300) further includes a lower end plate (340) and a second rotary joint (350). The driven shaft (310) is provided with a total gear oil outlet (314), and a plurality of gear oil outlets (315) are further provided on the gear mounting section (311). The gear oil outlets (315) are located below the gear oil inlet (313), and the gear oil outlets (315) communicate with the total gear oil outlet (314). There is a solid section between the total gear oil inlet (312) and the total gear oil outlet (314). One end of the fourth oil pipeline (900) is connected to the second rotary joint (350), and the other end communicates with the first oil pipeline (810). A drain compression assembly (400) is arranged in the total gear oil outlet (314). The drain compression assembly (400) includes a moving ring (410), a spring (420) and a fixed ring (430). The spring (420) is located on the top of the lower end plate (340), the moving ring (410) is located on the top of the spring (420), the fixed ring (430) passes through the moving ring (410) and the spring (420), a shaft stop (431) is arranged on the top of the fixed ring (430), and an oil drain port (432) is provided on the outer periphery of the fixed ring (430).

2. The speed reduction motor gear structure for long-term and high-load operation according to claim 1, characterized in that, The driving shaft assembly (100) includes a driving shaft (110), a driving gear (120) and a first bearing seat assembly (130). The driving gear (120) passes through the driving shaft (110) and is connected thereto. The driving shaft assembly (100) is connected to the anti-splash box assembly (200) through the first bearing seat assembly (130). The anti-splash box assembly (200) further includes an anti-splash box housing (210), an anti-splash box top plate (220) and an anti-splash box bottom plate (230). The anti-splash box drain pipe (240) is located below the meshing position of the driving gear (120) and the driven gear component.

3. The deceleration motor gear structure for long-time and high-load operation according to claim 2, wherein The upper end plate (320) is located at the top of the driven shaft (310) and is fixedly connected thereto. The first rotary joint (330) is located at the top of the upper end plate (320) and is connected thereto.

4. The gear structure of the reduction motor for long-time and high-load operation according to claim 3, characterized in that The main connecting plate (510) is provided with a second through hole (511) and an arc-shaped arch (512). Bolts pass through the second through hole (511) to lock the two gear support frame assemblies (500) so that they are clamped within the gear mounting section (311). The semi-circular connecting frame (520) is located outside the main connecting plate (510) and is fixedly connected thereto. One end of the gear oil pipe (530) is connected to the arc-shaped arch (512), and the other end is connected to the semi-circular connecting frame (520). A reinforcing rib (540) is further provided between the arc-shaped arch (512) and the semi-circular connecting frame (520). Two gear insertion boxes (550) are provided on the outer periphery of the semi-circular connecting frame (520). The gear support frame assembly (500) is provided with a first through hole (501). The front and back surfaces of the semi-circular connecting frame (520) are both provided with a first groove (521). A first boss (522) is provided on the outer periphery of the semi-circular connecting frame (520) along the first groove (521). A second boss (523) is provided on the inner periphery of the semi-circular connecting frame (520) along the first groove (521). A first nut (524) is fixedly connected to the second boss (523). Through holes are provided on both the first boss (522) and the second boss (523). The gear insertion box (550) is an annular box. The gear insertion box (550) is provided with a third through hole (551). A second nut (552) is fixedly connected to the inner side surface of the third through hole (551) close to the gear insertion box (550).

5. The speed reduction motor gear structure for long-term and high-load operation according to claim 4, wherein The reinforcing plate (620) is fixedly connected to the split gear (610). A second groove (611) is provided on the inner surface of the split gear (610). A fourth through hole (612) is provided on the outer surface of the split gear (610). Bolts pass through the fourth through hole (612) and the second nut (552) and are locked to achieve the fastening connection between the gear support frame assembly (500) and the split gear assembly (600).

6. The gear structure of the reduction motor for long-term and high-load operation according to claim 5, characterized in that, The fastening strip (700) is annular. A fifth through hole (701) is provided on the fastening strip (700).

7. The decelerating motor gear structure for long-time and high-load operation according to claim 6, wherein An oil filter (811), a first stop valve (812), and an oil cooler (813) are provided on the first oil pipeline. A first liquid level sensor (821) and a refueling pipeline (840) are provided on the first oil storage barrel (820). A second stop valve (831) and a pressurized liquid extraction pump (832) are provided on the second oil pipeline (830). A second liquid level sensor (851) is provided on the second oil storage barrel (850). A flow regulating valve (861) is provided on the third oil pipeline (860).

8. The method of using the reduction motor gear structure for long-time and high-load operation according to claim 7, characterized in that This usage method is the usage method S1 in which the shaft end of the driven shaft far from the first rotary joint is connected to other connecting parts, and it includes the following steps: S11. When the driving gear (120) meshes with the driven gear assembly, the lubricating oil under pressure flows from the second oil storage barrel (850) into the first rotary joint (330) through the third oil pipeline (860) and falls into the main gear oil inlet (312). S12. The oil in the main gear oil inlet (312) flows through the gear oil inlet (313) and into the closed area formed by the gear insertion box (550) and the split gear assembly (600) through the first through hole (501) to absorb the heat generated during the meshing of the driving gear (120) and the driven gear assembly. S13. The centrifugal force generated during the rotation of the driven gear assembly throws out the lubricating oil in the closed area formed by the gear insertion box (550) and the split gear assembly (600) through the oil slinging holes (613) to lubricate the driving gear (120) and reduce gear wear during meshing. S14. The thrown-out lubricating oil is first filtered and then cooled through the anti-splash box drain pipe (240) and enters the first oil storage barrel (820), and is pumped into the second oil storage barrel (850).

9. The method of using the speed reduction motor gear structure for long-time and high-load operation according to claim 7, characterized in that This usage method is the usage method S2 where the end of the driven shaft away from the first rotary joint is not connected to other connecting parts, and it includes the following steps: S21. When the driving gear (120) meshes with the driven gear assembly, the lubricating oil under pressure enters the main gear oil inlet (312). S22. Through the gear oil inlet (313), the lubricating oil flows into the closed area formed by the gear insertion box (550) and the split gear assembly (600) through the first through hole (501) to absorb the heat generated during the meshing of the driving gear (120) and the driven gear assembly. S23. The centrifugal force generated during the rotation of the driven gear assembly throws out a part of the lubricating oil in the closed area formed by the gear insertion box (550) and the split gear assembly (600) through the oil slinging holes (613) to lubricate the driving gear (120) and reduce gear wear during meshing, and the other part falls from the first through hole (501) through the gear oil outlet (315) into the area above the main gear oil outlet (314) where the oil drainage compression assembly (400) is located. S24. The thrown-out lubricating oil is first filtered and then cooled through the anti-splash box drain pipe (240) and enters the first oil storage barrel (820). As the volume of the lubricating oil above the oil drainage compression assembly (400) increases, the spring (420) is compressed and the moving ring (410) moves downward. The lubricating oil falls into the second rotary joint (350) from the oil drain port (432) and enters the first oil storage barrel (820) through cooling via the fourth oil pipeline (900). As the volume of the lubricating oil above the oil drainage compression assembly (400) decreases, the spring (420) is restored. S25. The lubricating oil in the first oil storage barrel (820) is pumped into the second oil storage barrel (850).

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