Gear structure of gear motor capable of working for long time and with high load

Abstract

The invention provides a long-time and high-load working speed reduction motor gear structure, and belongs to the technical field of gear transmission devices. The long-time and high-load working speed reduction motor gear structure comprises a driving shaft assembly, an anti-splashing box assembly, a driven shaft assembly, a driven gear part and an oil circulation assembly; the driven gear part comprises a gear supporting frame assembly, a split gear assembly and a fastening strip. The driving shaft assembly is connected with a motor through a coupler. The driven shaft assembly penetrates through the anti-splashing box assembly; the two gear supporting frame assemblies and the driven shaft assembly are fixedly connected through bolts. The split gear assembly is connected with the gear supporting frame assembly. The fastening strip is connected with the gear supporting frame assembly. Lubricating oil flows into a first rotating connector of the driven shaft assembly from an anti-splashing box oil discharging pipe of the anti-splashing box assembly through the oil circulating assembly. When a gear in a certain area of the driven gear component needs to be replaced, under the condition that the two gear supporting frame assemblies are kept fixed, one split gear assembly can be rapidly replaced, time is short, and cost is low.

Description

Technical Field

[0001] The present invention belongs to the technical field of gear transmission devices, and in particular relates to a gear structure of a reduction motor that works for a long time and under high load. Background Art

[0002] A reduction motor is an integrated drive device that integrates a motor and a reducer. Through the drive of the motor and the speed ratio reduction of the reduction device, the required low-speed and high-torque power can be output. 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 speed ratio range, and gear transmission technology is relatively mature, which can provide high efficiency, low noise and durable performance. Therefore, reduction motors using gear transmission are widely used in chemical mixing, elevators and other industrial machinery and equipment. The reduction motors in this type of equipment are usually placed vertically, that is, the input shaft and output shaft of this type of reduction motor are placed vertically. With the increase of the speed regulation range, the range of the reduction motor develops towards long-term operation and high load.

[0003] Authorization announcement number CN115306882B provides a gear structure of a reduction motor that can reduce wear, including a first tooth plate, and a sawtooth block a integrally installed on the outer side surface of the first tooth plate; a second tooth plate is installed below the first tooth plate, and the center position of the first tooth plate and the center position of the second tooth plate are both provided with a fixed through groove for installation and fixation with an external shaft rod; the first tooth plate is provided with a first installation groove at an equal angle with the center of the first tooth plate as the center. The gear structure of the reduction motor that can reduce wear is provided with an adjustment column, and through the setting of the adjustment column, the outer side surface of the adjustment column protrudes from the surface of the sawtooth block a and the sawtooth block b, reducing the contact area between the sawtooth block b and the sawtooth block b in the two meshing gear structures, thereby reducing the contact area of ​​multiple gear structures when in use, thereby reducing friction and reducing the degree of wear of the sawtooth block a and the sawtooth block b.

[0004] When the reduction motor is placed vertically, when the range of the reduction motor develops towards a structure that works for a long time and has a high load, in order to improve the strength and load-bearing capacity, the transmission ratio will increase, and the number of teeth of the driven gear will inevitably increase. However, an excessively large number of teeth will increase the size and weight of the gear and affect the transmission efficiency. If the driven gear still adopts the integral structure in the prior art, the outer dimensions are large, the overall weight is heavy, and the processing is difficult. Although 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, the heat dissipation of the driven gear is inconsistent, and the lubricating oil in the gear box may contain solid impurities or cannot be cooled in time, which will aggravate the driven gear. It is still necessary to replace the driven gear as a whole, which is time-consuming and labor-intensive and brings excessively high maintenance costs. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a reduction motor gear structure that can work for a long time and under high load, which effectively solves the problem in the prior art that when the reduction motor is placed vertically, if the driven gear still adopts an integral structure, the external dimensions are large, the overall weight is heavy, and the processing is difficult. Even if the wear can be reduced to a certain extent through processing accuracy or immersing the gear in lubricating oil for heat dissipation, but with long-term high-load operation, due to inconsistent heat dissipation of the driven gear, and the possible presence of solid impurities in the lubricating oil in the gear box or failure to cool down in time, the driven gear will be aggravated. The driven gear still needs to be replaced as a whole, which is time-consuming and labor-intensive and brings excessively high maintenance costs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reduction motor gear structure that works for a long time and under high load, comprising a motor, a driving shaft assembly, an anti-splash box assembly, a driven shaft assembly, a driven gear component and an oil circulation assembly; the driven gear component comprises a gear support frame assembly, a split gear assembly and a fastening strip; the driving shaft assembly is connected to the motor through a coupling; the driven shaft assembly passes through the anti-splash box assembly; the two gear support frame assemblies and the driven shaft assembly are fixedly connected by bolts; the split gear assembly is connected to the gear support frame assembly; the fastening strip is connected to the gear support frame assembly; the lubricating oil flows into the first rotary joint of the driven shaft assembly from the anti-splash box oil drain pipe of the anti-splash box assembly through the oil circulation assembly.

[0007] Preferably, the driving shaft assembly includes a driving shaft, a driving gear and a first bearing seat assembly, the driving gear passes through the driving shaft and is connected thereto, the driving shaft assembly is connected to the anti-splash box assembly through the first bearing seat assembly, the anti-splash box assembly also includes an anti-splash box shell, an anti-splash box top plate and an anti-splash box bottom plate, and the anti-splash box oil drain pipe is located below the meshing point between the driving gear and the driven gear component.

[0008] Preferably, the driven shaft assembly also includes a driven shaft and an upper end plate, the upper end plate is located at the top of the driven shaft and fixedly connected thereto, the first rotary joint is located at the top of the upper end plate and connected thereto, a gear mounting section is provided on the outer periphery of the driven shaft, the driven shaft is provided with a gear oil inlet manifold, a plurality of gear oil inlets are provided on the gear mounting section, and the gear oil inlets are connected to the gear oil inlet manifold.

[0009] Preferably, the gear support frame assembly comprises a main connecting plate, a semicircular connecting 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 connecting plate, and a bolt passes through the second through hole to lock the two gear support frame assemblies so that they are engaged in the gear mounting section, the semicircular connecting frame is located outside the main connecting plate and 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 semicircular connecting frame, a reinforcing rib is further provided between the arc-shaped arch and the semicircular connecting frame, and two reinforcing ribs are provided on the outer circumference of the semicircular connecting frame. The gear insertion box is provided with a first through hole on the gear support frame assembly, the front and back sides of the semicircular connecting frame are provided with a first groove, the semicircular connecting frame is provided with a first boss along the outer circumference of the first groove, the semicircular connecting frame is provided with a second boss along the inner circumference of the first groove, the second boss is fixedly connected with a first nut, the first boss and the second boss are both provided with through holes, the gear insertion box is an annular box, the gear insertion box is provided with a third through hole, and the third through hole is fixedly connected with a second nut on the inner side surface of the gear insertion box close to the gear insertion box.

[0010] Preferably, the split gear assembly includes a split gear and a reinforcement plate, the reinforcement plate is fixedly connected to the split gear, the inner surface of the split gear is provided with a second groove, the outer surface of the split gear is provided with a fourth through hole, and the top circle and root circle of the split gear are provided with oil-throwing holes. The bolt passes through the fourth through hole and the second nut and is tightened to achieve a fastened connection between the gear support frame assembly and the split gear assembly.

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

[0012] Preferably, the oil circulation assembly includes a first oil pipeline, a first oil storage barrel, a second oil pipeline, a second oil storage barrel and a third oil pipeline which are connected in sequence, the first oil pipeline is connected to the anti-splash box oil drain pipe, the third oil pipeline is connected to the first rotary joint, the first oil pipeline is provided with an oil filter, a first stop valve and an oil cooler, the first oil storage barrel is provided with a first liquid level sensor and an oil replenishment pipeline, the second oil pipeline is provided with a second stop valve and a booster pump, the second oil storage barrel is provided with a second liquid level sensor, and the third oil pipeline is provided with a flow regulating valve.

[0013] The present invention provides a method for using a gear structure of a reduction motor that works for a long time and under high load. The method is a method S1 in which a driven shaft end away from a first rotary joint is connected to other connecting members, and comprises the following steps: S11, when the driving gear is meshed with the driven gear component, the lubricating oil with pressure flows from the second oil storage barrel through the third oil pipeline into the first rotary joint and falls into the gear oil inlet port; S12, the oil in the gear oil inlet port flows through the gear oil inlet port and 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 component; S13, utilizing the centrifugal force generated when the driven gear component rotates to throw the lubricating oil in the closed area formed by the gear insertion box and the split gear assembly out through the oil throwing hole, so as to lubricate the driving gear and reduce the gear wear during the meshing process; S14, the thrown-out lubricating oil is filtered and then cooled through the splash-proof box drain pipe, enters the first oil storage barrel, and is pumped into the second oil storage barrel.

[0014] Furthermore, it also includes a fourth oil pipeline; the driven shaft assembly also includes a lower end plate and a second rotating joint, the driven shaft is provided with a gear oil outlet, and a plurality of gear oil outlets are also provided on the gear mounting section, the gear oil outlet is located below the gear oil inlet, the gear oil outlet is connected with the gear oil outlet, and a solid section exists between the gear oil inlet and the gear oil outlet, one end of the fourth oil pipeline is connected with the second rotating joint, and the other end is connected with the first oil pipeline, an oil discharge compression assembly is arranged in the gear oil outlet, the oil discharge compression assembly includes a movable ring, a spring and a fixed ring, the spring is located at the top of the lower end plate, the movable ring is located at the top of the spring, the fixed ring passes through the movable ring and the spring, a shaft stop is arranged on the top of the fixed ring, and an oil discharge port is arranged on the outer periphery of the fixed ring.

[0015] The present invention also provides another method for using a gear structure of a reduction motor that works for a long time and under high load, wherein the method is a method S2 in which the shaft end of the driven shaft away from the first rotary joint is not connected to other connecting parts, and comprises the following steps: S21, when the driving gear and the driven gear are meshed, the lubricant with pressure enters the gear oil inlet; S22, through the gear oil inlet, the lubricating oil flows from the first through hole into the closed area formed by the gear insertion box and the split gear assembly, absorbing the heat generated during the meshing process of the driving gear and the driven gear component; S23, utilizing the centrifugal force generated by the rotation of the driven gear component to throw out a portion of the lubricating oil in the closed area formed by the gear insertion box and the split gear assembly through the oil throwing hole to lubricate the driving gear and reduce gear wear during the meshing process, and the other portion falls from the first through hole through the gear oil outlet into the gear oil outlet located in the area above the oil discharge compression assembly; S24, the thrown out lubricating oil is filtered and then cooled through the oil discharge pipe of the splash-proof box and enters the first oil storage barrel. As the volume of the lubricating oil above the oil discharge 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 discharge port and enters the first oil storage barrel through the fourth oil pipeline after being cooled. As the volume of the lubricating oil above the oil discharge compression assembly decreases, the spring is restored; S25, pumping the lubricating oil in the first oil storage barrel into the second oil storage barrel.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a reduction motor gear structure that can work for a long time and under high load. Through the arrangement 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, the present invention can be suitable for working for a long time and under high load. The structure is compact, the overall structure is hollow, the weight is light, and the transmission efficiency is stable.

[0017] (2) The present invention provides a gear structure for a reduction motor that can work for a long time and under high load. A gear mounting section is provided on the driven shaft so that the driven gear component is engaged in the driven shaft, thereby avoiding the up and down shaking of the existing gears. At the same time, the two gear support frame assemblies are connected by a fastening strip, thereby ensuring the connection reliability of the present invention.

[0018] (3) The present invention provides a reduction motor gear structure that can work for a long time and under high load. When the gears in a certain area of ​​the driven gear component need to be replaced, one of the split gear assemblies can be quickly replaced while the two gear support frame assemblies remain fixed, which saves time and reduces costs.

[0019] (4) The present invention provides a reduction motor gear structure that can work for a long time and under high load. There is a cavity between the gear insertion box and the split gear assembly, which can facilitate the lubricating oil to dissipate heat inside and absorb heat. At the same time, the lubricating oil is thrown out through the throwing-out hole to lubricate the outside of the main gear and the driven gear components, thereby ensuring the uniformity of the heat dissipation of the gear transmission.

[0020] (5) The present invention provides a reduction motor gear structure that works for a long time and under high load. By setting an oil discharge compression component, the lubricating oil above the gear oil outlet can be automatically discharged, thereby increasing the amount of lubricating oil at the gear oil inlet, which can quickly reduce the temperature of the driven gear parts and reduce deformation caused by heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a general schematic diagram of embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the connection between the driven shaft assembly and the driven gear component of the present invention; Figure 3 is a schematic diagram of the interior of a driven shaft assembly according to Embodiment 1 of the present invention; Figure 4 is a three-dimensional schematic diagram of a driven gear component of the present invention; Figure 5 is a schematic structural diagram of the gear support frame assembly of the present invention; Figure 6 The present invention Figure 5 Schematic diagram from another perspective; Figure 7 It is a schematic diagram of the structure of the split gear assembly of the present invention; Figure 8 The present invention Figure 7 Schematic diagram from another perspective; Fig. 9 It is a half-section schematic diagram of the connection between the split gear assembly and the gear insertion box of the present invention; Fig.10 is a schematic diagram of the fastening strip structure of the present invention; Fig.11 is a general schematic diagram of embodiment 2 of the present invention; Fig.12 is a three-dimensional schematic diagram of a driven shaft assembly according to Embodiment 2 of the present invention; Fig.13 is a schematic diagram of the interior of the driven shaft assembly of Example 2 of the present invention when the spring is in a normal state; Fig.14 is a schematic diagram of the interior of the driven shaft assembly of Example 2 of the present invention, with the spring in a compressed state; Fig.15 It is a schematic diagram of the structure of the oil discharge compression assembly of Example 2 of the present invention.

[0022] In the figure: 100, driving shaft assembly; 110, driving shaft; 120, driving gear; 130, first bearing seat assembly; 200, anti-splash box assembly; 210, anti-splash box housing; 220, anti-splash box top plate; 230, anti-splash box bottom plate; 240, anti-splash box oil drain pipe; 300, driven shaft assembly; 310, driven shaft; 311, gear installation section; 312, gear oil inlet; 313, gear oil inlet; 314, gear oil outlet 315, gear oil outlet; 320, upper end plate; 330, first rotary joint; 340, lower end plate; 350, second rotary joint; 400, oil discharge compression assembly; 410, moving ring; 420, spring; 430, fixed ring; 431, shaft stop; 432, oil discharge port; 500, gear support frame assembly; 501, first through hole; 510, main connecting plate; 511, second through hole; 512, arc arch; 520, semicircular connecting frame; 521, first groove; 522, first boss; 523, second boss; 524, first nut; 530, gear oil pipe; 540, reinforcing rib; 550, gear insertion box; 551, third through hole; 552, second nut; 600, split gear assembly; 610, split gear; 611, second groove; 612, fourth through hole; 613, oil throwing hole; 620, reinforcing plate; 700, fastening strip; 701, fifth through hole; 800, Oil circulation assembly; 810, first oil pipeline; 811, oil filter; 812, first stop valve; 813, oil cooler; 820, first oil storage barrel; 821, first liquid level sensor; 830, second oil pipeline; 831, second stop valve; 832, booster pump; 840, oil replenishment pipeline; 850, second oil storage barrel; 851, second liquid level sensor; 860, third oil pipeline; 861, flow control valve; 900, fourth oil pipeline. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be pointed out that the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] 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 "connected" should be understood in a broad sense.

[0026] Example 1: See attached Figures 1 to 10 The present embodiment 1 provides a reduction motor gear structure that works for a long time and under high load, including 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.

[0027] 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 anti-splash box assembly 200; the driven shaft assembly 300 passes through the anti-splash box assembly 200; the gear support frame assembly 500, the split gear assembly 600 and the fastening strip 700 are all located inside the anti-splash 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; the lubricating oil flows into the first rotary joint 330 of the driven shaft assembly 300 from the anti-splash box oil drain pipe 240 of the anti-splash box assembly 200 through the oil circulation assembly 800.

[0028] 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 is fixedly connected through a support (not shown in the figure). The anti-splash box assembly 200 also includes an anti-splash box shell 210, an anti-splash box top plate 220 and an anti-splash box bottom plate 230. The anti-splash box top plate 220 is located at the top of the anti-splash box shell 210 and is connected thereto. The anti-splash box bottom plate 230 is located at the bottom of the anti-splash box shell 210 and is connected thereto. The anti-splash box oil drain pipe 240 is located below the meshing point between the driving gear 120 and the driven gear component.

[0029] The driven shaft assembly 300 also 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 fixedly connected thereto. The first rotary joint 330 is located at the top of the upper end plate 320 and 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. A gear oil inlet 312 is provided in the inner hole at one end of the driven shaft 310 close to the upper end plate 320. A plurality of gear oil inlets 313 are provided on the gear mounting section 311. The gear oil inlet 313 is communicated with the gear oil inlet 312.

[0030] It should be noted that the shaft end of the driven shaft 310 of the first embodiment far away from the first rotary joint 330 is connected to other connecting parts, such as a coupling.

[0031] The gear support frame assembly 500 includes a main connecting plate 510, a semicircular connecting frame 520, a gear oil pipe 530, a reinforcing rib 540 and a gear insertion box 550; a second through hole 511 and an arc-shaped arch 512 are provided on the main connecting plate 510, and bolts pass through the second through hole 511 to lock the two gear support frame assemblies 500 so that they are engaged in the gear mounting section 311, and the semicircular connecting frame 520 is located outside the main connecting plate 510 and 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 semicircular connecting frame 520, and a reinforcing rib 540 is further provided between the arc-shaped arch 512 and the semicircular connecting frame 520, and two gear insertion boxes 550 are provided on the outer circumference of the semicircular connecting frame 520, and a first through hole 50 is provided on the gear support frame assembly 500. 1. The first through hole 501 passes through the gear oil pipe 530, and the 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. The front and back sides of the semicircular connecting frame 520 are both provided with a first groove 521, and the semicircular connecting frame 520 is provided with a first boss 522 along the outer periphery of the first groove 521, and the semicircular connecting frame 520 is provided with a second boss 523 along the inner periphery of the first groove 521, and the second boss 523 is fixedly connected with a first nut 524, and the first boss 522 and the second boss 523 are both provided with through holes, and the gear insertion box 550 is an annular box, and the gear insertion box 550 is provided with a third through hole 551, and the inner side surface of the third through hole 551 close to the gear insertion box 550 is fixedly connected with a second nut 552.

[0032] The split gear assembly 600 includes a split gear 610 and a reinforcement plate 620, the reinforcement plate 620 is fixedly connected to the split gear 610, the inner surface of the split gear 610 is provided with a second groove 611, the outer surface of the split gear 610 is provided with a fourth through hole 612, and the top circle and root circle of the split gear 610 are provided with oil-throwing holes 613. Bolts pass through the fourth through hole 612 and the second nut 552 and are locked to achieve a fastened connection between the gear support frame assembly 500 and the split gear assembly 600.

[0033] The fastening strip 700 is annular and has a fifth through hole 701 . The bolts pass 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 are locked, further realizing the connection reliability of the two gear support frame assemblies 500 .

[0034] 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 which are connected in sequence. The first oil pipeline 810 is connected to the anti-splash box oil drain pipe 240, the third oil pipeline 860 is connected to the first rotary joint 330, the first oil pipeline is provided with an oil filter 811, a first stop valve 812 and an oil cooler 813, the first oil storage barrel 820 is provided with a first liquid level sensor 821 and an oil replenishment pipeline 840, the second oil pipeline 830 is provided with a second stop valve 831 and a booster pump 832, the second oil storage barrel 850 is provided with a second liquid level sensor 851, and the third oil pipeline 860 is provided with a flow regulating valve 861.

[0035] 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 oil replenishment pipeline 840 can be opened to replenish 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 oil replenishment pipeline 840 is closed to stop replenishing the first oil storage barrel 820. Similarly, a certain liquid level also needs to be maintained 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 level is an existing mature technology, and the liquid level can be automatically controlled by connecting with the PLC control system.

[0036] This embodiment 1 also provides a method for using a gear structure of a reduction motor that works for a long time and under high load. The method is a method S1 in which the shaft end of a driven shaft away from a first rotary joint is connected to other connecting members, and includes the following steps: S11, when the driving gear 120 is meshed with the driven gear component, the lubricating oil with 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 gear oil inlet 312; S12, the oil in the gear oil inlet 312 flows through the gear oil inlet 313 and the first through hole 501 into the closed area formed by the gear insertion box 550 and the split gear assembly 600, absorbing the heat generated during the meshing process of the driving gear 120 and the driven gear component; S13, utilizing the centrifugal force generated by the rotation of the driven gear component to throw the lubricating oil in the closed area formed by the gear insertion box 550 and the split gear assembly 600 out through the oil throwing hole 613, so as to lubricate the driving gear 120 and reduce the gear wear during the meshing process; S14, the thrown-out lubricating oil is filtered and then cooled through the splash-proof box drain pipe 240 and enters the first oil storage barrel 820, and is pumped into the second oil storage barrel 850 as needed.

[0037] Example 2: See attached Figure 2 , Figures 4 to 15 The present embodiment 2 provides a reduction motor gear structure that works for a long time and under high load, and 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.

[0038] Different from Example 1, the shaft end of the driven shaft 310 away from the first rotary joint 330 in this Example 2 is not connected to other connecting parts. Gears, pulleys, sprockets, etc. can be installed on the driven shaft 310, and the lower end plate 340 and the 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.

[0039] 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, a gear oil outlet 314 is provided in the inner hole at one end of the driven shaft 310 close to the lower end plate 340, a plurality of gear oil outlets 315 are also provided on the gear mounting section 311, the gear oil outlet 315 is located below the gear oil inlet 313, the gear oil outlet 315 is connected to the gear oil outlet 314, a solid section exists between the gear oil inlet 312 and the 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 connected to the first oil pipeline 810, the oil cooler 813 is located at the rear end of the fourth oil pipeline 900, and an oil discharge compression assembly 400 is provided in the gear oil outlet 314.

[0040] The oil discharge compression assembly 400 includes a movable ring 410, a spring 420 and a fixed ring 430. The spring 420 is located at the top of the lower end plate 340, the movable ring 410 is located at the top of the spring 420, the fixed ring 430 passes through the movable ring 410 and the spring 420, a shaft stop 431 is provided at the top of the fixed ring 430, and an oil discharge port 432 is opened on the outer periphery of the fixed ring 430.

[0041] This embodiment 2 also provides a method for using a reduction motor gear structure that works for a long time and under high load. The method is a method S2 in which the driven shaft end away from the first rotary joint is not connected to other connecting parts, and includes the following steps: S21, when the driving gear 120 is meshed with the driven gear component, the lubricant with pressure enters the gear oil inlet 312; S22, through the gear oil inlet 313, the lubricating oil flows from the first through hole 501 into the closed area formed by the gear insertion box 550 and the split gear assembly 600, absorbing the heat generated during the meshing process of the driving gear 120 and the driven gear component; S23, utilizing the centrifugal force generated by the rotation of the driven gear component to throw a portion of the lubricating oil in the closed area formed by the gear insertion box 550 and the split gear assembly 600 out through the oil throwing hole 613 to lubricate the driving gear 120 and reduce the wear of the gears during the meshing process, and the other portion falls from the first through hole 501 through the gear oil outlet 315 into the gear oil outlet 314 located in the area above the oil discharge compression assembly 400; S24, the thrown out lubricating oil is filtered and then cooled through the anti-splash box oil discharge pipe 240 and enters the first oil storage barrel 820. As the volume of the lubricating oil above the oil discharge compression assembly 400 increases, the spring 420 is compressed, the movable ring 410 moves downward, and the lubricating oil falls into the second rotary joint 350 from the oil discharge port 432, and enters the first oil storage barrel 820 through the fourth oil pipeline 900 after being cooled. As the volume of the lubricating oil above the oil discharge compression assembly 400 decreases, the spring 420 is restored; S25, pumping the lubricating oil in the first oil storage barrel 820 into the second oil storage barrel 850 as needed.

[0042] It should be noted that in Example 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 gear oil inlet 312 can be divided into two parts, one part is thrown out through the oil throwing hole 613, and the other part is intermittently discharged through the oil discharge compression assembly 400, which can quickly reduce the temperature of the driven gear components and reduce deformation caused by heat.

[0043] Furthermore, in Example 2, the number of first through holes 501 is half of that in Example 1, and the number of gear oil pipes 530 in Example 2 can also be half of the number of gear oil pipes 530 in Example 1. However, due to standardized manufacturing and consideration of symmetrical structure, the structure of the gear support frame assembly 500 in Example 2 and the gear support frame assembly 500 in Example 1 are usually set to be the same.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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-term and high-load operation, comprising a motor, characterized in that: It comprises 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); The driven gear component comprises 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 via a coupling; the driven shaft assembly (300) passes through the anti-splash 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); the lubricating oil flows from the anti-splash box oil drain pipe (240) of the anti-splash box assembly (200) into the first rotary joint (330) of the driven shaft assembly (300) through the oil circulation assembly (800).

2. The gear reduction motor gear structure for long-term and high-load operation according to claim 1 is characterized in that: The driving shaft assembly (100) comprises 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) via the first bearing seat assembly (130); the anti-splash box assembly (200) further comprises 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 oil drain pipe (240) is located below the meshing position of the driving gear (120) and the driven gear component.

3. The gear structure of the reduction motor for long-term and high-load operation according to claim 2 is characterized in that: The driven shaft assembly (300) further comprises a driven shaft (310) and an upper end plate (320), 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, a gear mounting section (311) is provided on the outer periphery of the driven shaft (310), a gear oil inlet (312) is provided on the driven shaft (310), a plurality of gear oil inlets (313) are provided on the gear mounting section (311), and the gear oil inlets (313) are communicated with the gear oil inlet (312).

4. The gear reduction motor gear structure for long-term and high-load operation according to claim 3 is characterized in that: The gear support frame assembly (500) comprises a main connecting plate (510), a semicircular 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 the two gear support frame assemblies (500) so that they are engaged in the gear mounting section (311); the semicircular 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 semicircular connecting frame (520); a reinforcing rib (540) is further provided between the arc-shaped arch (512) and the semicircular connecting frame (520); two reinforcing ribs (540) are provided on the outer circumference of the semicircular connecting frame (520); A gear insertion box (550), wherein the gear support frame assembly (500) is provided with a first through hole (501), the front and back sides of the semicircular connecting frame (520) are both provided with a first groove (521), the semicircular connecting frame (520) is provided with a first boss (522) along the outer circumference of the first groove (521), the semicircular connecting frame (520) is provided with a second boss (523) along the inner circumference of the first groove (521), the second boss (523) is fixedly connected with a first nut (524), the first boss (522) and the second boss (523) are both provided with through holes, the gear insertion box (550) is an annular box, the gear insertion box (550) is provided with a third through hole (551), and the inner side surface of the third through hole (551) close to the gear insertion box (550) is fixedly connected with a second nut (552).

5. The gear structure of the reduction motor for long-term and high-load operation according to claim 4 is characterized in that: The split gear assembly (600) comprises a split gear (610) and a reinforcing plate (620), 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), and oil-slinging holes (613) are provided at the tooth top circle and tooth root circle of the split gear (610), and bolts are passed through the fourth through hole (612) and the second nut (552) and are locked to achieve a fastened 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 in shape and is provided with a fifth through hole (701).

7. The gear structure of the reduction motor for long-term and high-load operation according to claim 6, characterized in that: The oil circulation assembly (800) comprises 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) which are connected in sequence. The first oil pipeline (810) is connected to the anti-splash box oil discharge pipe (240), the third oil pipeline (860) is connected to 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 an oil replenishment pipeline (840) are provided on the first oil storage barrel (820), a second stop valve (831) and a booster 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), and a flow regulating valve (861) is provided on the third oil pipeline (860).

8. The gear structure of the reduction motor for long-term and high-load operation according to claim 7, characterized in that: The driven shaft assembly (300) further comprises a fourth oil pipeline (900); the driven shaft assembly (300) further comprises a lower end plate (340) and a second rotary joint (350); the driven shaft (310) is provided with a gear oil outlet (314); the gear mounting section (311) is further provided with a plurality of gear oil outlets (315); the gear oil outlets (315) are located below the gear oil inlet (313); the gear oil outlets (315) are connected to the gear oil outlet (314); a solid section exists between the gear oil inlet (312) and the gear oil outlet (314); one end of the fourth oil pipeline (900) is connected to the second rotary joint (350); ) is connected to the gear oil outlet (314), and the other end is connected to the first oil pipeline (810). An oil discharge compression assembly (400) is arranged in the gear oil outlet (314). The oil discharge compression assembly (400) includes a movable ring (410), a spring (420) and a fixed ring (430). The spring (420) is located at the top of the lower end plate (340). The movable ring (410) is located at the top of the spring (420). The fixed ring (430) passes through the movable ring (410) and the spring (420). A shaft stopper (431) is arranged at the top of the fixed ring (430). An oil discharge port (432) is opened on the outer periphery of the fixed ring (430).

9. The method for using the gear structure of a reduction motor for long-term and high-load operation according to claim 7, characterized in that: The method of use is a method of use S1 in which the shaft end of the driven shaft away from the first rotary joint is connected to other connecting members, and includes the following steps: S11, when the driving gear (120) is meshed with the driven gear component, the lubricating oil with pressure flows from the second oil storage barrel (850) through the third oil pipeline (860) into the first rotary joint (330) and falls into the gear oil inlet (312); S12, the oil in the gear oil inlet (312) flows through the gear oil inlet (313) and the first through hole (501) into the closed area formed by the gear insertion box (550) and the split gear assembly (600), absorbing the heat generated during the meshing process of the driving gear (120) and the driven gear component; S13, utilizing the centrifugal force generated when the driven gear component rotates to throw the lubricating oil in the closed area formed by the gear insertion box (550) and the split gear assembly (600) out through the oil throwing hole (613), so as to lubricate the driving gear (120) and reduce gear wear during the meshing process; S14, the thrown-out lubricating oil is filtered and then cooled through the splash-proof box oil discharge pipe (240) and enters the first oil storage barrel (820), and is pumped into the second oil storage barrel (850).

10. The method for using the gear structure of a reduction motor for long-term and high-load operation according to claim 8, characterized in that: The method of use is a method of use S2 in which the driven shaft end away from the first rotary joint is not connected to other connecting parts, and includes the following steps: S21, when the driving gear (120) is meshed with the driven gear component, lubricant with pressure enters the gear oil inlet (312); S22, through the gear oil inlet (313), the lubricating oil flows from the first through hole (501) into the closed area formed by the gear insertion box (550) and the split gear assembly (600), and absorbs the heat generated during the meshing process of the driving gear (120) and the driven gear component; S23, utilizing the centrifugal force generated when the driven gear component rotates to throw out a portion of the lubricating oil in the closed area formed by the gear insertion box (550) and the split gear assembly (600) through the oil throwing hole (613), so as to lubricate the driving gear (120) and reduce gear wear during the meshing process; and the other portion of the lubricating oil falls from the first through hole (501) through the gear oil outlet (315) into the gear oil outlet (314) in the area above the oil discharge compression assembly (400); S24, the ejected lubricating oil is filtered and then cooled through the anti-splash box oil discharge pipe (240) and enters the first oil storage barrel (820). As the volume of the lubricating oil above the oil discharge compression assembly (400) increases, the spring (420) is compressed, the movable ring (410) moves downward, and the lubricating oil falls into the second rotary joint (350) from the oil discharge port (432), and enters the first oil storage barrel (820) through the fourth oil pipeline (900) after being cooled. As the volume of the lubricating oil above the oil discharge compression assembly (400) decreases, the spring (420) is restored. S25, pumping the lubricating oil in the first oil storage barrel (820) into the second oil storage barrel (850).

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