Sealing mechanism of vertical speed reducer

Abstract

The invention discloses a sealing mechanism of a vertical speed reducer, which belongs to the technical field of speed reducer production and is characterized in that by arranging a sealing mechanism and a connecting mechanism, when a vertical speed reducer body drives an output shaft to rotate, the output shaft can drive an oil guide ring to rotate through the connecting mechanism; when lubricating oil flowing down from the output shaft is in contact with the rotating oil guide ring, friction force is generated between the lubricating oil and the oil guide ring, a part of the lubricating oil obtains the same angular velocity as the oil guide ring, and shear stress appears in the lubricating oil under the influence of the angular velocity; when the resultant force of the shear stress, the centrifugal force and the surface tension exceeds the deformation resistance of the lubricating oil, the lubricating oil can be thrown out to the edge of the oil guide ring, and therefore the problem that the lubricating oil cannot be discharged after being gathered at the joint of the output shaft and the sealing lip for a long time is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of reducer production, in particular to a sealing mechanism for a vertical reducer. Background Art

[0002] A reducer is a reduction transmission device consisting of a gear transmission, a worm transmission, a gear, and a worm transmission enclosed in a rigid housing. It is installed between the prime mover and the working machine or actuator to match the speed and transmit torque. A vertical reducer refers to a reducer that is installed vertically and is generally fixed with a flange. In order to ensure the normal operation of the vertical reducer and extend its service life, a sealing oil seal needs to be installed between the output shaft and the housing of the reducer. The oil seal can isolate the parts that need lubrication from the output parts in the transmission components to prevent lubricating oil leakage. At the same time, it can also prevent water, chemical liquids, dust, sand and other impurities from entering the reducer. However, in actual use, since the setting position of the output shaft of the vertical reducer is different from that of the transmission reducer, the lubricating oil on the vertically set lubricating parts and the output shaft is more likely to seep out under the action of gravity and centrifugal force compared to the horizontal setting. When the lubricating oil flows and accumulates at the joint between the output shaft and the sealing lip, due to the certain viscosity of the lubricating oil, it is difficult to be discharged naturally from the joint. The long-term contact between the lubricating oil and the sealing lip will accelerate the corrosion and aging of the sealing lip. In addition, since there may be particulate impurities in the lubricating oil after lubrication, the friction between the sealing lip and the rotating shaft will increase, further accelerating the wear of the sealing lip, and eventually causing oil seal leakage. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem that the lubricating oil on the vertically arranged lubricating components and the output shaft is more likely to seep out under the action of gravity and centrifugal force. When the lubricating oil flows and accumulates at the joint between the output shaft and the sealing lip, it is difficult to be discharged naturally from the joint due to the certain viscosity of the lubricating oil. The long-term contact between the lubricating oil and the sealing lip will accelerate the corrosion and aging of the sealing lip. In addition, since particulate impurities may still exist in the lubricating oil after lubrication, the friction between the sealing lip and the rotating shaft is aggravated, further accelerating the wear of the sealing lip, and ultimately causing oil leakage of the oil seal. A vertical reducer sealing mechanism is proposed.

[0004] In order to achieve the above purpose, the present invention adopts the following technology: a vertical reducer sealing mechanism: It includes a vertical reducer body and an output shaft vertically arranged below the vertical reducer body. A sealing mechanism is sleeved on the surface of the output shaft. The sealing mechanism includes a frame fixed to the vertical reducer body, a rubber layer sleeved on the outside of the frame, and a sealing lip sleeved on the inside of the frame. A fastening spring is sleeved on the surface of the sealing lip. An oil guide ring is rotatably embedded on the sealing lip. The oil guide ring and the sealing lip are tightly fitted with the outer wall of the output shaft. When the output shaft rotates, the oil guide ring is driven to rotate synchronously. When the lubricating oil contacts the rotating oil guide ring, it will be thrown to the edge of the oil guide ring. The lubricating oil thrown out from the oil guide ring will enter the storage mechanism provided in the frame for storage. The storage mechanism includes an oil storage cavity connected to the oil guide ring and a slidable anti-overflow plate. When the output shaft rotates, the anti-overflow plate is pushed open by an opening and closing mechanism. The opening and closing mechanism includes an inclined mounting frame connected to the oil guide ring and a connecting rod connected to the anti-overflow plate. When the oil guide ring rotates, the connecting rod drives the anti-overflow plate to move along the straight direction of the mounting frame. The bottom of the oil storage cavity and the bottom of the frame are provided with exhaust holes for discharging lubricating oil.

[0005] As a further description of the sealing mechanism of a vertical reducer of the above technology: A plurality of guide grooves are equidistantly arranged around the surface of the oil guide ring.

[0006] As a further description of the sealing mechanism of a vertical reducer of the above technology: The oil storage chamber is connected to the anti-overflow plate via a sliding connecting rod. The sliding connecting rod includes guide grooves arranged on both sides of the inner wall of the oil storage chamber. A limit rail is integrally formed on the inner wall of the guide groove. The limit rail consists of two straight grooves arranged at different horizontal heights and an inclined groove connecting the two straight grooves. A connecting piece is fixedly installed on the anti-overflow plate, and a first support rod is fixedly installed on the connecting piece. A roller is rotatably installed at the end of the first support rod, and the roller is rotatably embedded in the guide groove and is embedded with the limit rail. A semi-open slot is provided on the top of the anti-overflow plate for the first support rod to move when the anti-overflow plate is opened. The anti-overflow plate is kept level with the oil storage cavity before opening. After the anti-overflow plate is opened, the connecting rod is shortened so that it can be stacked on the oil storage cavity.

[0007] As a further description of the sealing mechanism of a vertical reducer of the above technology: A gap is reserved between the inner wall of the oil storage cavity and the side of the anti-overflow plate close to the oil guide ring, and lubricating oil can also flow into the oil storage cavity through the gap when the oil guide ring is not rotating.

[0008] As a further description of the sealing mechanism of a vertical reducer of the above technology: The two adjacent oil storage chambers are connected by a collecting chamber. Oil guide grooves are opened on both sides of the collecting chamber. The liquid outlet of the oil guide groove corresponds to the position of the semi-open groove opened on the top of the anti-overflow plate. The lubricating oil entering the collecting chamber can flow into the oil storage chamber through the semi-open groove.

[0009] As a further description of the sealing mechanism of a vertical reducer of the above technology: The opening and closing mechanism also includes a slide groove provided on the mounting frame, a slider is slidably embedded in the slide groove, and the bottom of the slider is connected to the connecting rod, and the end of the connecting rod is rotatably connected to the anti-overflow plate through a first hinge.

[0010] As a further description of the sealing mechanism of a vertical reducer of the above technology: A first guide rod is provided inside the slide groove, the first guide rod passes through the middle of the slider and a first compression spring is wound around the surface of the first guide rod, and both ends of the first compression spring are connected to the slider and the slide groove respectively.

[0011] As a further description of the sealing mechanism of a vertical reducer of the above technology: The connecting rod includes a telescopic rod connected to the slider and a telescopic slot connected to the first hinge. A second guide rod is provided in the middle of the telescopic slot. The telescopic rod is movably nested inside the telescopic slot and on the surface of the second guide rod. A second compression spring is wound around the surface of the second guide rod. The two ends of the second compression spring are respectively fitted with the bottom of the telescopic rod and the bottom of the telescopic slot.

[0012] As a further description of the sealing mechanism of a vertical reducer of the above technology: The oil guide ring is attached to the rubber layer via a connecting mechanism, the connecting mechanism comprising a rotation groove provided on the oil guide ring, a rotation shaft rotatably provided inside the rotation groove, a second support rod connected to the rotation shaft, and a second hinged member rotatably provided at the end of the second support rod; The second hinge is provided with a rotatable fitting portion, the fitting portion is fitted on the surface of the rubber layer to drive the oil guide ring to rotate through the rubber layer, the fitting portion is provided with an engaging strip, and the second hinge is provided with a groove that meshes with the engaging strip; A plurality of balls are embedded around the bottom of the engaging portion between the oil guide ring and the sealing lip at equal intervals.

[0013] As a further description of the sealing mechanism of a vertical reducer of the above technology: A third guide rod is provided inside the rotating groove, and a rotating member is rotatably embedded on the surface of the third guide rod. A torsion spring is wound around the surface of the third guide rod, and both ends of the torsion spring are connected to the inner wall of the rotating member. The surface of the rotating member is provided with a thread. Mounting grooves are provided on both sides of the rotating shaft, and thread grooves that mesh with the rotating member are provided on the inner walls of the mounting grooves.

[0014] In summary, due to the adoption of the above-mentioned technology in a vertical reducer sealing mechanism, the beneficial effects of the present invention are: 1. Through the provided sealing mechanism and connecting mechanism, when the vertical reducer body drives the output shaft to rotate, the output shaft can drive the oil guide ring to rotate through the connecting mechanism. When the lubricating oil flowing down the output shaft contacts the rotating oil guide ring, friction is generated between the lubricating oil and the oil guide ring, and a part of the lubricating oil obtains the same angular velocity as the oil guide ring. Under the influence of the angular velocity, shear stress occurs inside the lubricating oil. When the combined force of the shear stress, centrifugal force and surface tension exceeds the deformation resistance of the lubricating oil, the lubricating oil will be thrown to the edge of the oil guide ring. The lubricating oil that has flowed to the oil guide ring before the output shaft rotates will be subjected to increasing centrifugal force as the rotation speed of the oil guide ring increases. When the centrifugal force exceeds the surface tension of the lubricating oil and the adhesion between the lubricating oil and the oil guide ring, the lubricating oil will also be thrown to the edge of the oil guide ring, thereby solving the problem of lubricating oil accumulating at the joint between the output shaft and the sealing lip and being unable to be discharged for a long time. 2. Through the storage mechanism and opening and closing mechanism, the lubricating oil thrown out from the oil guide ring will enter the storage mechanism set in the skeleton for storage. When the anti-overflow plate moves under the push of the first hinge, the anti-overflow plate can drive the first support rod to move through the connecting member, so that the first support rod drives the roller to roll inside the guide groove. The roller cannot deviate under the restriction of the limit rail. When the roller moves from the straight groove to the inclined groove, it begins to rise. At this time, the anti-overflow plate begins to rotate with the first hinge as the axis. At the same time, the connecting rod begins to shrink under continuous squeezing until the roller moves to another straight groove. At this time, the anti-overflow plate rotates in the opposite direction and resets to a horizontal state, and the connecting rod is always in a retracted state. The anti-overflow plate is opened, and the lubricating oil thrown out by the oil guide ring can enter the oil storage chamber for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a vertical reducer sealing mechanism provided according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the three-dimensional structure of a sealing mechanism provided according to an embodiment of the present invention is shown; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the enlarged structure at A in the middle; Figure 4 A partial front cross-sectional structural diagram of a vertical reducer sealing mechanism provided in an embodiment of the present invention is shown; Figure 5 A schematic diagram of a partial three-dimensional structure of a storage mechanism in a closed state according to an embodiment of the present invention is shown; Figure 6A schematic diagram of a partial three-dimensional structure of a storage mechanism in an open state according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the three-dimensional structure showing the connection state of the opening and closing mechanism and the storage mechanism provided in an embodiment of the present invention is shown; Figure 8 A schematic diagram of the three-dimensional structure of the connection state of the sealing lip, the fixing spring and the oil guide ring provided in an embodiment of the present invention is shown; Figure 9 A schematic diagram of the three-dimensional structure of an oil guide ring provided according to an embodiment of the present invention is shown; Figure 10 It shows a schematic diagram of a three-dimensional cross-sectional structure of a sealing mechanism provided by an embodiment of the present invention when installed on an output shaft; Figure 11 The embodiment of the present invention provides Figure 10 Schematic diagram of the enlarged structure at B in the middle; Figure 12 The embodiment of the present invention provides Figure 11 Schematic diagram of the enlarged structure at C in the middle; Figure 13 A schematic diagram of a partial three-dimensional cross-sectional structure of an opening and closing mechanism and a connecting rod provided in an embodiment of the present invention is shown; Figure 14 It shows a first partial three-dimensional structural diagram of a sliding connecting rod provided according to an embodiment of the present invention; Figure 15 A second partial three-dimensional structural diagram of a sliding connecting rod provided according to an embodiment of the present invention is shown; Figure 16 A schematic front cross-sectional view of a connecting mechanism according to an embodiment of the present invention is shown; Figure 17 The embodiment of the present invention provides Figure 16 Schematic diagram of the enlarged structure at point D in the middle.

[0016] Legend: 11. Vertical reducer body; 12. Output shaft; 20. Sealing mechanism; 21. Rubber layer; 22. Frame; 23. Sealing lip; 24. Oil guide ring; 241. Guide groove; 242. Ball bearing; 25. Fastening spring; 26. Exhaust hole; 30. Storage mechanism; 31. Oil storage chamber; 32. Anti-overflow plate; 33. Sliding connecting rod; 331. Connecting member; 332. First support rod; 333. Roller; 334. Guide groove; 335. Limit rail; 41. Collection chamber; 42. Oil guide groove; 50. Opening and closing mechanism; 51. Mounting frame; 52. Slide; 521. First guide rod; 522. First compression spring; 53. Slider; 54. Connecting rod; 541. Telescopic rod; 542. Telescopic slot; 543. Second guide rod; 544. Second compression spring; 55. First hinge; 60. Connecting mechanism; 61. Rotating groove; 611. Third guide rod; 612. Rotating member; 613. Torsion spring; 62. Rotating shaft; 621. Mounting groove; 63. Second support rod; 64. Second hinged member; 65. Fitting portion; 66. Fitting strip. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings to clearly and completely describe the technical embodiment of the present invention, a vertical reducer sealing mechanism. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0018] In order to solve the problem that the lubricating oil on the vertically arranged lubricating components and the output shaft is more likely to seep out under the action of gravity and centrifugal force, when the lubricating oil flows and accumulates at the joint between the output shaft and the sealing lip, it is difficult to be discharged naturally from the joint due to the certain viscosity of the lubricating oil. The long-term contact between the lubricating oil and the sealing lip will accelerate the corrosion and aging of the sealing lip. Moreover, since there may still be particulate impurities in the lubricating oil after lubrication, the friction between the sealing lip and the rotating shaft is aggravated, further accelerating the wear of the sealing lip, and finally causing oil seal leakage, the present invention proposes a vertical reducer sealing mechanism, such as Figure 1 - Figure 17 As shown: It includes a vertical reducer body 11 and an output shaft 12 vertically arranged below the vertical reducer body 11. A sealing mechanism 20 is sleeved on the surface of the output shaft 12. The sealing mechanism 20 includes a skeleton 22 fixed to the vertical reducer body 11, a rubber layer 21 sleeved on the outside of the skeleton 22, and a sealing lip 23 sleeved on the inside of the skeleton 22. A fastening spring 25 is sleeved on the surface of the sealing lip 23. When it is needed, the rubber layer 21 and the sealing lip 23 need to be installed on the skeleton 22 first, and the skeleton 22 is fixedly installed on the vertical reducer body 11. An oil guide ring 24 is rotatably embedded on the sealing lip 23, and the oil guide ring 24 and the sealing lip 23 are both tightly fitted with the outer wall of the output shaft 12. In order to enable the oil guide ring 24 to rotate, Figure 11 and Figure 16As shown, the oil guide ring 24 is attached to the rubber layer 21 via a connecting mechanism 60. The connecting mechanism 60 includes a rotation groove 61 provided on the oil guide ring 24. A rotation shaft 62 is rotatably provided inside the rotation groove 61. A second support rod 63 is connected to the rotation shaft 62. A second hinge 64 is rotatably provided at the end of the second support rod 63. The second hinge 64 is provided with a rotatable fitting portion 65, which fits against the surface of the rubber layer 21 so as to drive the oil guide ring 24 to rotate through the rotation of the rubber layer 21. The fitting portion 65 is provided with an engaging strip 66, and the second hinge 64 is provided with a groove that intermeshes with the engaging strip 66. like Figure 9 As shown, a number of balls 242 are embedded around the bottom of the joint between the oil guide ring 24 and the sealing lip 23 at equal distances; When installing the oil guide ring 24, first embed the oil guide ring 24 into the sealing lip 23. At this time, the oil guide ring 24 can rotate under the restriction of the sealing lip 23 and the ball 242 fits with the sealing lip 23. Through this design, the contact area between the oil guide ring 24 and the sealing lip 23 can be reduced, the friction force encountered by the oil guide ring 24 when rotating in the sealing lip 23 can be reduced, and the smoothness of the rotation of the oil guide ring 24 can be improved. Then, the fastening spring 25 is sleeved on the surface of the sealing lip 23, so that the sealing lip 23 and the oil guide ring 24 can fit together on the surface of the output shaft 12. Figure 8 、 Figure 10 and Figure 11 As shown, the sealing mechanism 20 is installed; Then, the fitting portion 65 is moved so that it is mounted on the second hinge 64 via the interlocking strip 66. At this time, the second support rod 63 is rotated so that the second support rod 63 drives the rotating shaft 62 to rotate within the limit of the rotating groove 61. At the same time, the second support rod 63 drives the fitting portion 65 to fit on the surface of the rubber layer 21 via the second hinge 64. When the vertical reducer body 11 drives the output shaft 12 to rotate, the output shaft 12 can drive the oil guide ring 24 to rotate through the connecting mechanism 60. When the lubricating oil flowing down the output shaft 12 contacts the rotating oil guide ring 24, friction is generated between the two, causing a portion of the lubricating oil to obtain the same angular velocity as the oil guide ring 24. Under the influence of the angular velocity, shear stress is generated inside the lubricating oil. When the combined force of the shear stress, centrifugal force, and surface tension exceeds the lubricating oil's ability to resist deformation, the lubricating oil is thrown out to the edge of the oil guide ring 24. The lubricating oil that has flowed to the oil guide ring 24 before the output shaft 12 rotates will be subjected to increasing centrifugal force as the rotation speed of the oil guide ring 24 increases. When the centrifugal force exceeds the surface tension of the lubricating oil and the adhesion between the lubricating oil and the oil guide ring 24, the lubricating oil will be thrown out to the edge of the oil guide ring 24, thereby solving the problem of the lubricating oil accumulating at the joint between the output shaft 12 and the sealing lip 23 and being unable to be discharged for a long time.

[0019] The surface of the oil guide ring 24 is provided with a number of guide grooves 241 equidistantly arranged around it. This design allows lubricating oil with weaker adhesion to flow onto the surface of the oil guide ring 24 . Even if the output shaft 12 does not start to drive the oil guide ring 24 to rotate, the lubricating oil can still be diverted into each guide groove 241 and slide off the oil guide ring 24 under the guidance of the guide grooves 241 .

[0020] At the same time, in order to improve the stability of the oil guide ring 24 rotation, as Figure 17 As shown, a third guide rod 611 is provided inside the rotating groove 61, and a rotating member 612 is rotatably embedded on the surface of the third guide rod 611. A torsion spring 613 is wound around the surface of the third guide rod 611. Both ends of the torsion spring 613 are connected to the inner wall of the rotating member 612. The surface of the rotating member 612 is provided with a thread. The rotating shaft 62 is provided with mounting grooves 621 on both sides, and the inner wall of the mounting groove 621 is provided with a thread groove that meshes with the rotating member 612; Through this design, the rotating member 612 can be rotatably set on the third guide rod 611, and the rotating shaft 62 is fixedly connected to the rotating member 612 through the installation groove 621. When the fitting portion 65 fits on the surface of the output shaft 12, the rotating shaft 62 pulls the rotating member 612 to rotate on the surface of the third guide rod 611 through the installation groove 621 and pulls the torsion spring 613 to cause it to produce elastic deformation, thereby achieving the purpose of using the torsion spring 613 to improve the fit between the fitting portion 65 and the output shaft 12, and cooperate with other fitting portions 65 to clamp the surface of the output shaft 12, so that the torsional force of the output shaft 12 can be better transmitted to the oil guide ring 24, and the installation of the oil guide ring 24 is more flexible and the rotation is more stable.

[0021] like Figure 2-Figure 6 The lubricating oil thrown out from the oil guide ring 24 will enter the storage mechanism 30 provided in the frame 22 for storage. The storage mechanism 30 includes an oil storage cavity 31 connected to the oil guide ring 24 and a slidable anti-overflow plate 32. When the output shaft 12 rotates, the anti-overflow plate 32 is pushed open by the opening and closing mechanism 50. Figure 7 、 Figure 12 and Figure 13 As shown, the opening and closing mechanism 50 includes an inclined mounting frame 51 connected to the oil guide ring 24 and a connecting rod 54 connected to the anti-overflow plate 32. When the oil guide ring 24 rotates, the connecting rod 54 drives the anti-overflow plate 32 to move in a straight line along the mounting frame 51; The opening and closing mechanism 50 further includes a slide groove 52 provided on the mounting frame 51 , in which a slider 53 is slidably embedded. The bottom of the slider 53 is connected to a connecting rod 54 , and the end of the connecting rod 54 is rotatably connected to the anti-overflow plate 32 via a first hinge 55 ; When the output shaft 12 rotates, the oil guide ring 24 can drive the mounting frame 51 and the oil storage chamber 31 to rotate together. Under the action of centrifugal force, the slider 53 can drive the connecting rod 54 to slide under the guidance of the slide groove 52, and drive the anti-overflow plate 32 to move through the first hinge 55. Since the mounting frame 51 is set to an inclined shape, the slider 53 inside the slide groove 52 is more susceptible to the influence of centrifugal force and moves. Figure 13 As shown, the connecting rod 54 includes a telescopic rod 541 connected to the slider 53 and a telescopic slot 542 connected to the first hinge 55. A second guide rod 543 is provided in the middle of the telescopic slot 542. The telescopic rod 541 is movably nested in the telescopic slot 542 and the surface of the second guide rod 543. A second compression spring 544 is wound around the surface of the second guide rod 543. The two ends of the second compression spring 544 are respectively fitted with the bottom of the telescopic rod 541 and the bottom of the telescopic slot 542. Through this design, when the anti-overflow plate 32 is squeezed, the anti-overflow plate 32 can drive the first hinge 55 to rise. The first hinge 55 drives the telescopic slot 542 and the second guide rod 543 to move under the restriction of the telescopic rod 541 and squeeze the second compression spring 544, thereby achieving the purpose of adjusting the distance between the slider 53 and the first hinge 55. like Figure 14 and Figure 15 As shown, the oil storage chamber 31 is connected to the anti-overflow plate 32 via a sliding connecting rod 33. The sliding connecting rod 33 includes guide grooves 334 provided on both sides of the inner wall of the oil storage chamber 31. A limiting rail 335 is integrally formed on the inner wall of the guide groove 334. The limiting rail 335 consists of two straight grooves provided at different levels and an inclined groove connecting the two straight grooves. A connecting member 331 is fixedly mounted on the anti-overflow plate 32, and a first support rod 332 is fixedly mounted on the connecting member 331. A roller 333 is rotatably mounted at the end of the first support rod 332, and the roller 333 is rotatably embedded in the guide groove 334 and interlocked with the limiting rail 335. A semi-open slot is formed on the top of the anti-overflow plate 32 for the first support rod 332 to move when the anti-overflow plate 32 is opened. Before the anti-overflow plate 32 is opened, it is kept level with the oil storage chamber 31. After the anti-overflow plate 32 is opened, the connecting rod 54 is shortened so that it can be stacked on the oil storage chamber 31. When the anti-overflow plate 32 moves under the push of the first hinge 55, the anti-overflow plate 32 can drive the first support rod 332 to move through the connecting member 331, so that the first support rod 332 drives the roller 333 to roll inside the guide groove 334. The roller 333 cannot deviate under the restriction of the limit rail 335. When the roller 333 moves from the straight groove to the inclined groove, it begins to rise. At this time, the anti-overflow plate 32 begins to rotate with the first hinge 55 as the axis. At the same time, under continuous squeezing, the connecting rod 54 begins to shrink until the roller 333 moves to another straight groove. At this time, the anti-overflow plate 32 rotates in the opposite direction and resets to a horizontal state, while the connecting rod 54 is always in a retracted state. The anti-overflow plate 32 is opened, and the lubricating oil thrown out by the oil guide ring 24 can enter the oil storage chamber 31.

[0022] In order to facilitate the flow of lubricating oil, Figure 5 and Figure 6 As shown, a gap is reserved between the inner wall of the oil storage chamber 31 and the side of the anti-overflow plate 32 close to the oil guide ring 24. When the oil guide ring 24 is not rotating, the lubricating oil can also flow into the oil storage chamber 31 through the gap. At the same time, if Figure 2 and Figure 3 As shown, two adjacent oil storage chambers 31 are connected by a collecting chamber 41. Oil guide grooves 42 are opened on both sides of the collecting chamber 41. The liquid outlet of the oil guide groove 42 corresponds to the position of the semi-open groove opened on the top of the anti-overflow plate 32. The lubricating oil entering the collecting chamber 41 can flow into the oil storage chamber 31 through the semi-open groove.

[0023] In order to facilitate the automatic closing of the anti-overflow plate 32 to reduce the risk of leakage of lubricating oil, as shown in FIG. Figure 12 and Figure 13 As shown, a first guide rod 521 is provided inside the slide groove 52, and the first guide rod 521 passes through the middle of the slider 53 and is wound with a first compression spring 522 on the surface. The two ends of the first compression spring 522 are respectively connected to the slider 53 and the slide groove 52. Through this design, when the slider 53 moves inside the slide groove 52, it can squeeze the first compression spring 522 under the guidance of the first guide rod 521 and cause it to produce elastic deformation. When the output shaft 12 stops rotating, the centrifugal force applied to the slider 53 disappears. Under the push of the elastic deformation recovery of the first compression spring 522, the slider 53 can be reset and drive the anti-overflow plate 32 to move in the opposite direction and close.

[0024] After the output shaft 12 stops rotating, the lubricating oil in the oil storage chamber 31 is discharged through the exhaust holes 26 opened at the bottom of the oil storage chamber 31 and the bottom of the frame 22 .

[0025] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes to the vertical reducer sealing mechanism and its inventive concept according to the technology of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A vertical reducer sealing mechanism, comprising a vertical reducer body (11) and an output shaft (12) vertically arranged below the vertical reducer body (11), wherein a sealing mechanism (20) is sleeved and installed on the surface of the output shaft (12), the sealing mechanism (20) comprising a frame (22) fixed on the vertical reducer body (11), a rubber layer (21) sleeved on the outside of the frame (22) and a sealing lip (23) sleeved on the inside of the frame (22), a fastening spring (25) sleeved on the surface of the sealing lip (23), characterized in that: An oil guide ring (24) is rotatably embedded on the sealing lip (23), and both the oil guide ring (24) and the sealing lip (23) are tightly fitted with the outer wall of the output shaft (12). When the output shaft (12) rotates, the oil guide ring (24) is driven to rotate synchronously, and when the lubricating oil contacts the rotating oil guide ring (24), it will be thrown to the edge of the oil guide ring (24); The lubricating oil thrown out from the oil guide ring (24) enters a storage mechanism (30) provided in the frame (22) for storage. The storage mechanism (30) includes an oil storage chamber (31) connected to the oil guide ring (24) and a slidable anti-overflow plate (32). When the output shaft (12) rotates, the anti-overflow plate (32) is pushed open by an opening and closing mechanism (50). The opening and closing mechanism (50) includes an inclined mounting frame (51) connected to the oil guide ring (24) and a connecting rod (54) connected to the anti-overflow plate (32). When the oil guide ring (24) rotates, the connecting rod (54) drives the anti-overflow plate (32) to move in a straight line along the mounting frame (51). The bottom of the oil storage chamber (31) and the bottom of the frame (22) are provided with exhaust holes (26) for discharging lubricating oil.

2. A vertical reducer sealing mechanism according to claim 1, characterized in that: A plurality of guide grooves (241) are equidistantly arranged around the surface of the oil guide ring (24).

3. A vertical reducer sealing mechanism according to claim 1, characterized in that: The oil storage chamber (31) is connected to the anti-overflow plate (32) via a sliding connecting rod (33). The sliding connecting rod (33) includes guide grooves (334) provided on both sides of the inner wall of the oil storage chamber (31). A limiting rail (335) is integrally formed on the inner wall of the guide groove (334). The limiting rail (335) is composed of two straight grooves provided at different levels and an inclined groove connecting the two straight grooves. A connecting piece (331) is fixedly mounted on the anti-overflow plate (32), and a first support rod (332) is fixedly mounted on the connecting piece (331). A roller (333) is rotatably mounted at the end of the first support rod (332), and the roller (333) is rotatably embedded in the guide groove (334) and interlocked with the limiting rail (335). A semi-open slot is provided on the top of the anti-overflow plate (32) for the first support rod (332) to move when the anti-overflow plate (32) is opened. The anti-overflow plate (32) is kept level with the oil storage chamber (31) before opening. After the anti-overflow plate (32) is opened, the connecting rod (54) is shortened so that it can be stacked on the oil storage chamber (31).

4. A vertical reducer sealing mechanism according to claim 3, characterized in that: A gap is reserved between the inner wall of the oil storage chamber (31) and the side of the anti-overflow plate (32) close to the oil guide ring (24), and lubricating oil can flow into the oil storage chamber (31) through the gap when the oil guide ring (24) is not rotating.

5. A vertical reducer sealing mechanism according to claim 4, characterized in that: Two adjacent oil storage chambers (31) are connected via a collecting chamber (41). Oil guide grooves (42) are provided on both sides of the collecting chamber (41). The liquid outlet of the oil guide groove (42) corresponds to the position of the semi-open groove provided on the top of the anti-overflow plate (32). Lubricating oil entering the collecting chamber (41) can flow into the oil storage chamber (31) through the semi-open groove.

6. A vertical reducer sealing mechanism according to claim 3, characterized in that: The opening and closing mechanism (50) further comprises a slide groove (52) provided on the mounting frame (51), a slider (53) being slidably embedded in the slide groove (52), and the bottom of the slider (53) being connected to a connecting rod (54), and the end of the connecting rod (54) being rotatably connected to the anti-overflow plate (32) via a first hinge (55).

7. A vertical reducer sealing mechanism according to claim 6, characterized in that: A first guide rod (521) is provided inside the slide groove (52), the first guide rod (521) passes through the middle of the slider (53) and a first compression spring (522) is wound around the surface of the first guide rod (521), and both ends of the first compression spring (522) are respectively connected to the slider (53) and the slide groove (52).

8. The vertical reducer sealing mechanism according to claim 6, characterized in that: The connecting rod (54) includes a telescopic rod (541) connected to the slider (53) and a telescopic slot (542) connected to the first hinge (55). A second guide rod (543) is provided in the middle of the telescopic slot (542). The telescopic rod (541) is movably nested inside the telescopic slot (542) and on the surface of the second guide rod (543). A second compression spring (544) is wound around the surface of the second guide rod (543). The two ends of the second compression spring (544) are respectively in contact with the bottom of the telescopic rod (541) and the bottom of the telescopic slot (542).

9. The vertical reducer sealing mechanism according to claim 1, characterized in that: The oil guide ring (24) is attached to the rubber layer (21) via a connecting mechanism (60). The connecting mechanism (60) includes a rotation groove (61) provided on the oil guide ring (24). A rotation shaft (62) is rotatably provided inside the rotation groove (61). A second support rod (63) is connected to the rotation shaft (62). A second hinged member (64) is rotatably provided at the end of the second support rod (63). The second hinge (64) is provided with a rotatable fitting portion (65), the fitting portion (65) being fitted on the surface of the rubber layer (21) to drive the oil guide ring (24) to rotate via the rubber layer (21), the fitting portion (65) being provided with an engaging strip (66), and the second hinge (64) being provided with a groove that meshes with the engaging strip (66); A plurality of balls (242) are embedded around the bottom of the joint between the oil guide ring (24) and the sealing lip (23) at equal intervals.

10. The vertical reducer sealing mechanism according to claim 9, characterized in that: A third guide rod (611) is provided inside the rotating groove (61), and a rotating member (612) is rotatably embedded on the surface of the third guide rod (611). A torsion spring (613) is wound around the surface of the third guide rod (611), and both ends of the torsion spring (613) are connected to the inner wall of the rotating member (612). The surface of the rotating member (612) is provided with a thread. Mounting grooves (621) are provided on both sides of the rotating shaft (62), and threaded grooves that mesh with the rotating member (612) are provided on the inner walls of the mounting grooves (621).

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