Totally-closed reduction gearbox assembly

Abstract

The invention discloses a totally-closed reduction gearbox assembly, which belongs to the technical field of reduction gearboxes, and comprises an upper cover, a lower cover, a gear, an input shaft, an output shaft and a lubricating component, and the lubricating component comprises a conveying seat, an oil outlet, an oil inlet, a lubricating pipe and a lubricating oil spray hole; the sealing unit is arranged in the oil inlet and used for sealing the oil inlet; and the conveying unit is arranged in the conveying seat and is matched with the input shaft for use. When the input shaft rotates, the conveying unit is triggered to act, so that the conveying unit acts and triggers the sealing unit to act, lubricating oil stored in the lower cover can enter the conveying base through the oil inlet, and then the sealing unit seals the oil inlet through the action of the conveying unit; and then the conveying unit extrudes the lubricating oil in the conveying seat into the lubricating pipe, and the lubricating oil can be sprayed to the surfaces of the gear blocks of the gear set from a plurality of lubricating oil spraying holes of the lubricating pipe, so that the meshing process of the gear blocks is lubricated.

Description

Technical Field

[0001] The invention belongs to the technical field of reduction gearboxes, and in particular relates to a fully enclosed reduction gearbox assembly. Background Art

[0002] Gear reducer is a common power transmission device, which is mainly used to reduce the speed of the prime mover and increase the torque at the same time. Its working principle is that the prime mover (such as electric motor, internal combustion engine, etc.) is connected to the reducer, and then the reducer is connected to the working machine. In the reduction transmission, the prime mover provides high-speed and low-torque power, while in the speed-increasing transmission, it provides low-speed and high-torque power. There are many types of reducers, among which gear reducers are the most widely used. According to the shape and number of gears, gear reducers can be divided into cylindrical gear reducers, bevel gear reducers and bevel-cylindrical gear reducers. According to the number of transmission stages, it can be divided into single-stage and multi-stage reducers. In addition, according to the layout of the transmission, it can also be divided into expansion type, split type and coaxial type reducers.

[0003] In the prior art, the input shaft of the gear reducer drives the gear set to rotate, thereby adjusting the transmission ratio, and then causing the output shaft to rotate at a fixed transmission ratio. It can be seen that the transmission of the gear reducer relies on the meshing transmission of the gear set to achieve the transmission ratio distribution, and the meshing between the gears is a mechanical hard contact, which makes the meshing surface of the gears prone to wear. When the tooth surface is worn, the gears will inevitably produce noise and poor transmission during the meshing process. Therefore, in the prior art, lubricating oil is filled in the closed shell of the gear reducer, and the tooth blocks of the gears are in contact with the lubricating oil. When rotating, the tooth blocks are dipped in the lubricating oil, so that when meshing, the lubricating oil can lubricate the tooth surfaces of the tooth blocks. However, after long-term use, even if the shell of the gear reducer is closed, the lubricating oil level will drop, which may cause the tooth blocks of the gear set to be unable to be dipped in the lubricating oil, thereby making it impossible to lubricate the tooth surfaces, thereby affecting the lubrication of the gears during meshing.

[0004] At present, some gear reducers are fully enclosed and filled with a large amount of lubricating oil inside, so that the lubricating oil submerges most of the surface of the gear set. Although this method delays the consumption of the lubricating oil, it will cause the filling amount of the lubricating oil to increase greatly, and will also have a greater impact on the use cost of the gear reducer. Therefore, a gear reducer assembly is needed that can minimize the use of lubricating oil and can effectively cover and lubricate the gear set. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a fully enclosed reduction box assembly.

[0006] The technical solution adopted to solve the above technical problems is: a fully enclosed reduction box assembly, including an upper cover and a lower cover of a gear reduction box, a gear set is installed in the lower cover, an input shaft and an output shaft are installed on the gear set, a lubrication component is installed in the lower cover, and the lubrication component includes: A conveying seat connected to the inner bottom wall of the lower cover, wherein the interior of the conveying seat is hollow, an oil outlet is provided on the lower side of the periphery of the conveying seat, and an oil inlet coaxial with the oil outlet is also provided on the lower side of the periphery of the conveying seat; A lubrication pipe installed at the oil outlet, wherein one end of the lubrication pipe away from the oil outlet is closed, the lubrication pipe extends upward to above the gear set, and a plurality of lubrication oil spray holes are opened on the upper wall of the lubrication pipe; a sealing unit disposed in the oil inlet, the sealing unit being used to seal the oil inlet; A conveying unit is arranged in the conveying seat, and the conveying unit is used in conjunction with the input shaft.

[0007] Through the above technical solution, when the input shaft rotates, it will trigger the action of the delivery unit, so that the delivery unit will act and trigger the action of the sealing unit, so that the lubricating oil stored in the lower cover can enter the delivery seat through the oil inlet, and then through the action of the delivery unit, the sealing unit seals the oil inlet, and then the delivery unit squeezes the lubricating oil in the delivery seat into the lubrication pipe, and can spray it from the multiple lubricating oil spray holes of the lubrication pipe to the surface of the gear block of the gear set, thereby lubricating the meshing process of the gear block. Compared with the existing technology, there is no need to fill a large amount of lubricating oil into the gear reduction box to effectively lubricate the gear set.

[0008] Furthermore, a mounting plate is fixedly connected to the bottom of the conveying seat, and the mounting plate is connected to the inner bottom wall of the lower cover.

[0009] Through the above technical solution, the mounting plate is connected to the inner bottom wall of the lower cover, so that the conveying seat is installed in the lower cover.

[0010] Furthermore, the conveying unit includes a sliding column coaxially penetrated through the top of the conveying seat, the sliding column slides vertically and freely on the conveying seat, a piston is coaxially fixedly connected to the lower end of the sliding column, the piston is engaged with the inner cavity wall of the conveying seat, and the piston slides freely on the inner cavity wall of the conveying seat, a driving spring is vertically installed in the conveying seat, and the two ends of the driving spring in the elastic direction elastically press against the lower end surface of the piston and the inner bottom wall of the conveying seat respectively, a rotating ring is fixedly sleeved on the periphery of the input shaft, a swing arm is fixedly connected to the periphery of the rotating ring, and the swing arm is used in conjunction with the sliding column.

[0011] Through the above technical scheme, when the input shaft rotates, it will synchronously drive the rotating ring and the swing arm to rotate, so that the swing arm can intermittently press against the top surface of the sliding column at the far end of the rotating ring, thereby enabling the sliding column to move downward and drive the piston to move downward. When the piston moves downward, the lubricating oil entering the delivery seat from the oil inlet can be pressed to the oil outlet, and then sprayed from the lubricating oil spray hole of the lubrication pipe to the gear group to lubricate the gear group. The structure is simple and the manufacturing cost is low.

[0012] Furthermore, a ball is rotatably embedded in the top of the sliding column, and the ball is in rolling contact with the periphery of the rotating ring and the surface of the swing arm.

[0013] Through the above technical solution, the ball rolls in contact with the top of the sliding column and drives the sliding column to move downward, replacing the contact between the end face of the sliding column and the rotating ring and the swing arm, thereby reducing the wear of the end face of the sliding column.

[0014] Furthermore, a protective cover is sleeved on the periphery of the input shaft, a through hole is opened on the end face of the protective cover for the input shaft to pass freely, a mounting ring is fixed to the periphery of the protective cover, the mounting ring is sleeved on the periphery of the conveying seat, the rotating ring and the swing arm are located in the protective cover and can pass freely through the protective cover.

[0015] Through the above technical solution, when the ball contacts the swing arm and the rotating ring, a certain amount of wear will occur on the surface of the swing arm, and this wear will cause material on the surface of the swing arm to fall off. The protective cover protects the rotating ring, the swing arm, the sliding column and the ball, and the protective cover collects the fallen material to prevent it from adhering to the gear set, thereby causing wear on the meshing of the gear set.

[0016] Furthermore, a rubber ring is installed in the through hole, the diameter of the middle hole of the rubber ring is larger than the diameter of the input shaft, and a plurality of nylon bristles are arranged on the wall of the middle hole of the rubber ring, and the nylon bristles are in contact with the periphery of the input shaft.

[0017] Through the above technical solution, the nylon bristles can prevent the material falling off the surface of the swing arm from entering the lower cover, and also avoid wear caused by contact between the surface of the protective cover and the periphery of the input shaft.

[0018] Furthermore, the lubrication tube is made of brass.

[0019] Through the above technical solution, the brass material has good thermal conductivity, so that when the lubricating oil flows in the lubricating pipe, the heat of the lubricating oil in the lower cover is transferred to the lubricating pipe to a certain extent, which can cool the flowing lubricating oil in the lubricating pipe to a certain extent.

[0020] Furthermore, the sealing unit includes a fixed plug fixedly installed in the oil inlet, the end face of the fixed plug is coaxially provided with a first connecting port in the form of a through hole, a sliding plug is clamped and installed in the oil inlet, the sliding plug slides freely in the oil inlet, a plurality of second connecting ports are provided on the end face of the sliding plug, the first connecting port and the second connecting port are staggered so that when the end face of the fixed plug and the end face of the sliding plug abut against each other, the abutting surfaces of the two are in a sealed state, and an elastic reset unit is installed on the oil inlet, and the elastic reset unit is used to drive the sliding plug to move toward the outer side of the mouth of the oil inlet.

[0021] Through the above technical scheme, the elastic reset unit generates an elastic resisting force on the floating plate, so that in the initial state, the floating plate drives the connecting rod and the sliding plug to move in the direction away from the conveying seat, thereby making the end face of the fixed plug and the end face of the sliding plug abut against each other, and the abutting surfaces have a good sealing effect, and when the sliding column moves upward in the conveying seat, the pressure in the conveying seat drops, so that the lubricating oil in the lower cover generates a thrust on the sliding plug, so that the sliding plug overcomes the elastic resisting force of the elastic reset unit and moves toward the conveying seat, so that the lubricating oil in the lower cover can enter the conveying seat through the first connecting port and the second connecting port in sequence, that is, the pressure difference of the lubricating oil inside and outside the conveying seat is used to seal the oil inlet, and the structure is simple and the cost is low.

[0022] Furthermore, the elastic reset unit includes a connecting rod coaxially fixed to the end face of the sliding plug, the end of the connecting rod away from the sliding plug passes through the first connecting port, the diameter of the connecting rod is smaller than the aperture of the first connecting port, and ear blocks with holes are fixed on both sides of the outer wall of the oil inlet, a guide rod is passed through the middle hole of the ear block with holes, the guide rod slides freely in the middle hole of the ear block with holes, and a floating plate is commonly fixed to the ends of the two guide rods away from the conveying seat, a reset spring is wrapped around the periphery of the guide rod, and the two ends of the reset spring in the elastic force direction elastically press against the ear block with holes and the floating plate respectively.

[0023] The cam is pressed against the piston, and the piston is pressed against the piston rod, so that the piston moves upward in the conveying seat. When the piston moves upward in the conveying seat, due to the pressure difference between the inside and outside of the conveying seat, the lubricating oil in the lower cover will push the sliding plug, and the sliding plug will overcome the elastic pressure of the returning spring on the floating plate, and then move toward the inner side of the conveying seat, so that the fixed plug and the sliding plug are in a relatively moving state, so that the lubricating oil in the lower cover can enter the conveying seat through the first connecting port and the second connecting port. At this time, the returning spring accumulates elastic potential energy. When the piston moves downward, the pressure difference between the inside and outside of the conveying seat tends to be consistent, so that the elastic potential energy of the returning spring is released, and then the floating plate is driven to move in the direction away from the conveying seat, so that the sliding plug and the fixed plug approach each other until the end face of the sliding plug abuts against the end face of the fixed plug, and because the first connecting port and the second connecting port are in a staggered distribution state, when the end face of the fixed plug abuts against the end face of the sliding plug, the abutting surfaces of the two are in a sealed state, thereby preventing the lubricating oil in the lower cover from entering the conveying seat.

[0024] Furthermore, a stirring plate extending downward is fixedly connected to the outer wall of the floating plate.

[0025] Through the above technical solution, when the floating plate reciprocates horizontally, it will be able to drive the stirring plate to reciprocate horizontally. During the movement, the stirring plate can stir the lubricating oil deposited in the lower cover, so that the lubricating oil has a certain fluidity, and prevent the poor fluidity of the lubricating oil from causing the deposition of components in the lubricating oil.

[0026] The beneficial effects of the present invention are as follows: In the present invention, when the input shaft rotates, the conveying unit is triggered to move, so that the conveying unit moves and the sealing unit moves, so that the lubricating oil stored in the lower cover can enter the conveying seat from the oil inlet, and then the sealing unit seals the oil inlet through the action of the conveying unit, and then the conveying unit squeezes the lubricating oil in the conveying seat into the lubrication pipe, and can spray the lubricating oil from the multiple lubricating oil spray holes of the lubrication pipe to the surface of the gear block of the gear set, so as to lubricate the meshing process of the gear block. Compared with the prior art, it is not necessary to fill a large amount of lubricating oil into the gear reduction box, and the gear set can be effectively lubricated; In the present invention, when the input shaft rotates, it will synchronously drive the rotating ring and the swing arm to rotate, so that the end of the swing arm far from the rotating ring can intermittently abut against the top surface of the sliding column, thereby enabling the sliding column to move downward and drive the piston to move downward. When the piston moves downward, the lubricating oil entering the delivery seat from the oil inlet can be pressed to the oil outlet, and then sprayed from the lubricating oil spray hole of the lubricating pipe to the gear set to lubricate the gear set. The structure is simple and the manufacturing cost is low. In the present invention, the elastic reset unit generates an elastic resisting force on the floating plate, so that in the initial state, the floating plate drives the connecting rod and the sliding plug to move in the direction away from the conveying seat, thereby causing the end surface of the fixed plug and the end surface of the sliding plug to abut against each other, and the abutting surfaces have a good sealing effect. When the sliding column moves upward in the conveying seat, the pressure in the conveying seat drops, so that the lubricating oil in the lower cover generates a thrust on the sliding plug, so that the sliding plug overcomes the elastic resisting force of the elastic reset unit and moves toward the conveying seat, so that the lubricating oil in the lower cover can enter the conveying seat through the first connecting port and the second connecting port in sequence, that is, the pressure difference of the lubricating oil inside and outside the conveying seat is used to seal the oil inlet, and the structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a fully enclosed reduction box assembly in the present invention; Figure 2 yes Figure 1 A schematic diagram of the first-person perspective structure; Figure 3 yes Figure 1 The schematic diagram of the structure after the upper cover is omitted; Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective; Figure 5 It is a schematic diagram of the structure after the upper cover and the lower cover are omitted in the present invention; Figure 6 yes Figure 5 The schematic diagram of the structure after the output shaft, gear set and protective cover are omitted; Figure 7 yes Figure 6 A structural diagram from another perspective; Figure 8 It is a schematic diagram of the structure after the conveying seat, the oil inlet, the oil outlet and the mounting plate are assembled in the present invention; Fig. 9 yes Figure 8 A cross-sectional schematic diagram of the structure from another perspective; Fig.10 yes Figure 8 Schematic diagram of explosion decomposition; Fig.11 yes Fig.10 A magnified schematic diagram of the local structure at point A.

[0028] Figure numerals: 1. input shaft; 2. lower cover; 3. upper cover; 4. output shaft; 5. lubrication pipe; 6. gear set; 7. conveying seat; 8. protective cover; 9. lubricating oil spray hole; 10. rubber ring; 11. oil outlet; 12. mounting plate; 13. oil inlet; 14. rotating ring; 15. swing arm; 16. ball; 17. sliding column; 18. stirring plate; 19. floating plate; 20. fixing plug; 21. connecting rod; 22. piston; 23. driving spring; 24. second connecting port; 25. sliding plug; 26. first connecting port; 27. guide rod; 28. return spring; 29. ​​ear block with hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figure 1-Figure 11 As shown, this embodiment provides a fully enclosed reduction box assembly, including an upper cover 3 and a lower cover 2 of a gear reduction box, the upper cover 3 and the lower cover 2 have roughly the same contours, the bottom of the lower cover 2 is provided with an ear plate, the ear plate is provided with a bolt mounting hole, the upper cover 3 and the lower cover 2 have a lip on the opposite surface, and a plurality of bolt holes are provided on the lip. When assembling the upper cover 3 and the lower cover 2, the upper cover 3 and the lower cover 2 can be assembled together by a bolt pair, and the lips of the upper cover 3 and the lower cover 2 are provided with a bearing seat and an axis hole, so that when the upper cover 3 and the lower cover 2 are assembled together, the bearing seat and the axis hole are in a complete hole shape, and a bearing is installed in the bearing seat, and the inner rings of the plurality of bearings are correspondingly installed with an input shaft 1, a gear shaft and an output shaft 4 in sequence, the input shaft 1 is connected to the prime mover driving, and the output shaft 4 is connected to the actuator, and in addition, the input shaft 1, the output shaft 4 and the gear shaft are jointly installed with a plurality of gears of different nominal diameters, and these gears constitute a gear set 6, so that the input shaft 1 and the output shaft 4 have different rotation speeds, that is, a fixed transmission ratio is generated; Combination Figures 5 to 10 As shown, a mounting plate 12 is installed on the inner bottom wall of the lower cover 2 by screw connection, and a cylindrical conveying seat 7 is welded on the upper surface of the mounting plate 12. The conveying seat 7 is hollow inside, and an oil outlet 11 protruding toward the outer side of the conveying seat 7 is provided on the lower side of the periphery of the conveying seat 7, and an oil inlet 13 protruding toward the outer side of the periphery of the conveying seat 7 is also provided on the lower side of the periphery of the conveying seat 7. The oil outlet 11 and the oil inlet 13 are coaxial, and both of them are connected with the inner cavity of the conveying seat 7. A lubrication pipe 5 made of brass material is installed on the oil outlet 11, and one end of the lubrication pipe 5 away from the oil outlet 11 is closed, and the lubrication pipe 5 extends upward to the top of the gear set 6, and a plurality of lubrication oil spray holes 9 are opened on the upper side wall of the lubrication pipe 5, and the plurality of lubrication oil spray holes 9 cover the meshing areas of a plurality of gears in the gear set 6; Combination Figures 5 to 10 As shown, a sliding column 17 is vertically penetrated on the top of the conveying seat 7, and the sliding column 17 slides vertically and freely on the conveying seat 7. In addition, the sliding column 17 and the conveying seat 7 are arranged in a coaxial state, and the lower end of the sliding column 17 penetrates into the inner cavity of the conveying seat 7, and one end of the sliding column 17 that penetrates into the inner cavity of the conveying seat 7 is coaxially fixed with a piston 22, and the piston 22 is engaged with the inner cavity wall of the conveying seat 7, and the piston 22 slides freely on the inner cavity wall of the conveying seat 7. A driving spring 23 is vertically installed in the conveying seat 7, and the two ends of the driving spring 23 in the elastic direction elastically press against the lower end surface of the piston 22 and the inner bottom wall of the conveying seat 7 respectively. The periphery of the input shaft 1 is fixedly sleeved with a rotating ring 14, and the periphery of the rotating ring 14 is fixedly connected with a swing arm 15, and the swing arm 15 is used in conjunction with the sliding column 17. Specifically, the top of the sliding column 17 is rotatably embedded with The ball 16 is in rolling contact with the periphery of the rotating ring 14 and the surface of the swing arm 15. When the input shaft 1 rotates, the swing arm 15 is driven to rotate. The end of the swing arm 15 farthest from the rotating ring 14 is in intermittent contact with the ball 16, so that the ball 16 drives the sliding column 17 to move downward during the contact with the swing arm 15, thereby driving the piston 22 to slide downward in the inner cavity of the conveying seat 7. During the downward movement of the piston 22, the driving spring 23 is compressed, so that the driving spring 23 accumulates elastic potential energy. When the swing arm 15 is out of contact with the ball 16, the elastic potential energy accumulated in the driving spring 23 is released, thereby driving the piston 22 to move upward in the inner cavity of the conveying seat 7. This is repeated, so that the piston 22 continuously reciprocates up and down in the inner cavity of the conveying seat 7. Combination Figures 5 to 10As shown, a protective cover 8 is sleeved on the periphery of the input shaft 1, and a through hole is opened on the end face of the protective cover 8 for the input shaft 1 to pass freely. A mounting ring is fixedly connected to the periphery of the protective cover 8, and the mounting ring is sleeved on the periphery of the conveying seat 7. The rotating ring 14 and the swing arm 15 are located in the protective cover 8, and the swing arm 15 can freely pass through the protective cover 8 when rotating with the input shaft 1. Since the contact between the ball 16 and the swing arm 15 is a mechanical contact, friction and wear will inevitably occur. During the wear process, the material layer on the surface of the swing arm 15 will fall off. Even if the material that falls off is small, if it adheres to the tooth surface of the gear set 6 or enters the bearing of the reduction box, it may cause damage to the tooth surface and bearing of the gear set 6. Therefore, by setting the protective cover 8, the swing arm 15 The material falling off the surface can only fall into the protective cover 8 and will not enter the tooth surface or bearing of the gear set 6, thereby damaging the tooth surface and bearing of the gear set 6. In addition, a rubber ring 10 can be tightly installed in the through hole, and the diameter of the middle hole of the rubber ring 10 is larger than the diameter of the input shaft 1. The wall of the middle hole of the rubber ring 10 is provided with a plurality of nylon bristles, which abut against the peripheral edge of the input shaft 1. The nylon bristles are staggered. On the one hand, this will not cause the inner wall of the through hole to contact the peripheral edge of the input shaft 1, thereby preventing the peripheral edge of the input shaft 1 from being worn when the input shaft 1 rotates. On the other hand, the nylon bristles can drive the material attached to the input shaft 1 near the inner edge of the through hole into the protective cover 8, thereby reducing the material close to the mouth edge of the through hole.

[0031] Combination Figures 5 to 10As shown, a fixed plug 20 is fixedly mounted in the oil inlet 13, and a first communication port 26 in the form of a through hole is coaxially opened on the end face of the fixed plug 20. A sliding plug 25 is mounted in the oil inlet 13, and the sliding plug 25 slides freely in the oil inlet 13. A plurality of second communication ports 24 are opened on the end face of the sliding plug 25. The first communication ports 26 and the second communication ports 24 are staggered, so that when the end face of the fixed plug 20 and the end face of the sliding plug 25 abut against each other, the abutting surfaces of the two are in a sealed state. A connecting rod 21 is coaxially fixedly connected to the end face of the sliding plug 25, and one end of the connecting rod 21 away from the sliding plug 25 passes through the first communication port 26. The diameter of the connecting rod 21 is smaller than the aperture of the first communication port 26. The outer wall of the oil inlet 13 A perforated ear block 29 is fixedly connected to each of the two sides, and a guide rod 27 is inserted into the middle hole of the perforated ear block 29. The guide rod 27 slides freely in the middle hole of the perforated ear block 29, and the ends of the two guide rods 27 away from the conveying seat 7 are commonly fixedly connected to the floating plate 19. A return spring 28 is sleeved around the periphery of the guide rod 27, and the two ends of the return spring 28 in the elastic force direction elastically press against the perforated ear block 29 and the floating plate 19 respectively. The return spring 28 generates an elastic pressing force on the floating plate 19, so that when the piston 22 moves upward in the conveying seat 7, due to the pressure difference between the inside and outside of the conveying seat 7, the lubricating oil in the lower cover 2 will push the sliding plug 25, and the sliding plug 25 overcomes the return spring 28 on the floating plate 19. The elastic resisting force is then moved toward the inner side of the conveying seat 7, so that the fixed plug 20 and the sliding plug 25 are in a relatively moving state away from each other, so that the lubricating oil in the lower cover 2 can enter the conveying seat 7 through the first connecting port 26 and the second connecting port 24. At this time, the return spring 28 accumulates elastic potential energy. When the piston 22 moves downward, the pressure difference between the inner and outer sides of the conveying seat 7 tends to be consistent, so that the elastic potential energy of the return spring 28 is released, and then the floating plate 19 is driven to move in the direction away from the conveying seat 7, so that the sliding plug 25 and the fixed plug 20 are close to each other, until the end face of the sliding plug 25 is against the end face of the fixed plug 20, and because the first connecting port 26 and the second connecting port 24 are staggered, the sliding plug 25 and the fixed plug 20 are moved away from each other. The state of the cloth, so that when the end surface of the fixed plug 20 and the end surface of the sliding plug 25 abut against each other, the abutting surfaces of the two are in a sealed state, thereby preventing the lubricating oil in the lower cover 2 from entering the conveying seat 7. In addition, the outer wall of the floating plate 19 is fixedly connected with a stirring plate 18 extending downward, and the lower surface of the stirring plate 18 extends toward the inner bottom wall of the lower cover 2. The longitudinal distance between the lower surface of the stirring plate 18 and the inner bottom wall of the lower cover 2 is less than 1 cm. In this way, the floating plate 19 can drive the stirring plate 18 to reciprocate horizontally when it reciprocates horizontally, and the stirring plate 18 can stir the lubricating oil deposited in the lower cover 2 during the movement, so that the lubricating oil has a certain fluidity, thereby preventing the components in the lubricating oil from being deposited due to poor fluidity of the lubricating oil.

[0032] The working principle of this embodiment is as follows: When the external prime mover drives the input shaft 1 to rotate, the input shaft 1 drives the gear set 6 to rotate, so that the output shaft 4 rotates. When the input shaft 1 rotates, the rotating ring 14 and the swing arm 15 rotate synchronously. When the swing arm 15 starts to contact the ball 16 at the farthest end of the rotating ring 14, the ball 16 is squeezed by the swing arm 15, so that the ball 16 drives the sliding column 17 to move downward. When the sliding column 17 moves downward, it will synchronously drive the piston 22 to move downward in the inner cavity of the conveying seat 7. When the piston 22 moves downward in the inner cavity of the conveying seat 7, the lubricating oil in the conveying seat 7 is squeezed by the piston 22, so that the lubricating oil is pressed into the oil outlet 11. In addition, the pressure inside and outside the corresponding conveying seat 7 of the sliding plug 25 is consistent. Therefore, the sliding plug 25 will be driven by the elastic force of the return spring 28 on the floating plate 19, and then move toward the fixed plug 20 until the end faces of the sliding plug 25 and the fixed plug 20 are abutted. Since the first connecting port 26 and the second connecting port 24 are staggered, when the end faces of the fixed plug 20 and the sliding plug 25 are abutted, the abutting surfaces of the two are in a sealed state, thereby preventing The lubricating oil in the stopper cover 2 enters the conveying seat 7, and the lubricating oil in the inner cavity of the conveying seat 7 cannot flow out from the oil inlet 13, so that the lubricating oil in the inner cavity of the conveying seat 7 can only enter the oil outlet 11. In addition, because the piston 22 exerts a certain pressure on the lubricating oil when moving downward in the inner cavity of the conveying seat 7, the lubricating oil enters the oil outlet 11 and is pressed into the lubricating pipe 5. The lubricating oil in the lubricating pipe 5 will be sprayed from the multiple lubricating oil spray holes 9 onto the tooth surface of the gear set 6. In this way, when the gear set 6 is meshing, the tooth surface of the gear set 6 will be lubricated by the lubricating oil, so that the gear set 6 can be lubricated during the meshing process; When the swing arm 15 starts to rotate and swing upward, the elastic potential energy stored in the driving spring 23 is released, thereby driving the piston 22 to move upward in the inner cavity of the conveying seat 7. When the piston 22 moves upward, the pressure in the inner cavity of the conveying seat 7 drops rapidly, making the lubricating oil pressure inside and outside the conveying seat 7 inconsistent. Specifically, the lubricating oil pressure outside the conveying seat 7 is greater than the lubricating oil pressure in the inner cavity of the conveying seat 7. Due to the pressure difference, the lubricating oil in the lower cover 2 will push the sliding plug 25 to move in the oil inlet 13, causing the sliding plug 25 to move away from the solid The end surface of the fixed plug 20 moves. During the movement, the connecting rod 21 drives the floating plate 19 to move, so that the floating plate 19 compresses the return spring 28, and the return spring 28 begins to accumulate elastic potential energy. In addition, since the fixed plug 20 and the sliding plug 25 are relatively far apart, the lubricating oil in the lower cover 2 can enter the conveying seat 7 through the first connecting port 26 and the second connecting port 24. This is repeated, and the lubricating oil in the lower cover 2 can be continuously conveyed to the lubricating pipe 5, and then sprayed out from the lubricating oil spray hole 9. The structure is simple and no additional power components are required. In addition, since the contact between the ball 16 and the swing arm 15 is a mechanical contact, friction and wear will inevitably occur. During the wear process, the material layer on the surface of the swing arm 15 will fall off. Even if the material that falls off is small, if it adheres to the tooth surface of the gear set 6 or enters the bearing of the reduction box, it may cause damage to the tooth surface and bearing of the gear set 6. Therefore, by providing a protective cover 8, the material that falls off the surface of the swing arm 15 can only fall into the protective cover 8 and will not enter the tooth surface or bearing of the gear set 6, thereby causing damage to the tooth surface and bearing of the gear set 6.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A fully enclosed reduction box assembly, comprising an upper cover (3) and a lower cover (2) of a gear reduction box, wherein a gear set (6) is installed in the lower cover (2), and an input shaft (1) and an output shaft (4) are installed on the gear set (6), characterized in that: A lubrication assembly is installed in the lower cover (2), and the lubrication assembly comprises: A conveying seat (7) connected to the inner bottom wall of the lower cover (2), the conveying seat (7) being hollow inside, an oil outlet (11) being provided on the lower side of the periphery of the conveying seat (7), and an oil inlet (13) coaxial with the oil outlet (11) being also provided on the lower side of the periphery of the conveying seat (7); a lubrication pipe (5) mounted on the oil outlet (11), wherein one end of the lubrication pipe (5) away from the oil outlet (11) is closed, the lubrication pipe (5) extends upward to above the gear set (6), and a plurality of lubrication oil spray holes (9) are provided on the upper wall of the lubrication pipe (5); a sealing unit disposed in the oil inlet (13), the sealing unit being used to seal the oil inlet (13); A conveying unit is arranged in the conveying seat (7), and the conveying unit is used in conjunction with the input shaft (1).

2. The fully enclosed reduction gearbox assembly according to claim 1, characterized in that: A mounting plate (12) is fixedly connected to the bottom of the conveying seat (7), and the mounting plate (12) is connected to the inner bottom wall of the lower cover (2).

3. The fully enclosed reduction gearbox assembly according to claim 1, characterized in that: The conveying unit comprises a sliding column (17) coaxially penetrated through the top of the conveying seat (7), the sliding column (17) slides vertically and freely on the conveying seat (7), the lower end of the sliding column (17) is coaxially fixedly connected with a piston (22), the piston (22) is engaged with the inner cavity wall of the conveying seat (7), and the piston (22) slides freely on the inner cavity wall of the conveying seat (7), a driving spring (23) is vertically installed in the conveying seat (7), and the two ends of the driving spring (23) in the elastic direction elastically abut against the lower end surface of the piston (22) and the inner bottom wall of the conveying seat (7), the periphery of the input shaft (1) is fixedly sleeved with a rotating ring (14), the periphery of the rotating ring (14) is fixedly connected with a swing arm (15), and the swing arm (15) is used in conjunction with the sliding column (17).

4. The fully enclosed reduction gearbox assembly according to claim 3, characterized in that: A ball (16) is rotatably embedded in the top of the sliding column (17), and the ball (16) is in rolling contact with the periphery of the rotating ring (14) and the surface of the swing arm (15).

5. The fully enclosed reduction gearbox assembly according to claim 4, characterized in that: The periphery of the input shaft (1) is sleeved with a protective cover (8), the end surface of the protective cover (8) is provided with a through hole for the input shaft (1) to pass freely, the periphery of the protective cover (8) is fixedly connected with a mounting ring, the mounting ring is sleeved on the periphery of the conveying seat (7), the rotating ring (14) and the swing arm (15) are located in the protective cover (8) and can pass freely through the protective cover (8).

6. The fully enclosed reduction gearbox assembly according to claim 5, characterized in that: A rubber ring (10) is installed in the through hole, the diameter of the middle hole of the rubber ring (10) is larger than the diameter of the input shaft (1), and a plurality of nylon bristles are provided on the wall of the middle hole of the rubber ring (10), the nylon bristles abut against and connect to the periphery of the input shaft (1).

7. The fully enclosed reduction gearbox assembly according to claim 1, characterized in that: The lubrication tube (5) is made of brass.

8. The fully enclosed reduction gearbox assembly according to claim 1, characterized in that: The sealing unit comprises a fixed plug (20) fixedly mounted in the oil inlet (13), the end surface of the fixed plug (20) being coaxially provided with a first communication port (26) in the form of a through hole, a sliding plug (25) being mounted in engagement in the oil inlet (13), the sliding plug (25) being freely slidable in the oil inlet (13), a plurality of second communication ports (24) being provided on the end surface of the sliding plug (25), the first communication ports (26) and the second communication ports (24) being staggered so that when the end surface of the fixed plug (20) and the end surface of the sliding plug (25) are in contact with each other, the contacting surfaces of the two are in a sealed state, and an elastic reset unit is mounted on the oil inlet (13), the elastic reset unit being used to drive the sliding plug (25) to move toward the outer side of the mouth of the oil inlet (13).

9. The fully enclosed reduction gearbox assembly according to claim 8, characterized in that: The elastic reset unit comprises a connecting rod (21) coaxially fixed to the end surface of the sliding plug (25), the end of the connecting rod (21) away from the sliding plug (25) passes through the first connecting port (26), the diameter of the connecting rod (21) is smaller than the diameter of the first connecting port (26), two sides of the outer wall of the oil inlet (13) are respectively fixed with a perforated ear block (29), a guide rod (27) is passed through the middle hole of the perforated ear block (29), the guide rod (27) slides freely in the middle hole of the perforated ear block (29), and the ends of the two guide rods (27) away from the conveying seat (7) are commonly fixed with a floating plate (19), a reset spring (28) is sleeved on the periphery of the guide rod (27), and the two ends of the reset spring (28) in the elastic force direction elastically abut the perforated ear block (29) and the floating plate (19) respectively.

10. The fully enclosed reduction gearbox assembly according to claim 9, characterized in that: The outer wall of the floating plate (19) is fixedly connected with a stirring plate (18) extending downward.

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