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CN-224214667-U - Oil leakage prevention speed reducer

CN224214667UCN 224214667 UCN224214667 UCN 224214667UCN-224214667-U

Abstract

The utility model provides an oil leakage prevention speed reducer, which comprises an input shaft and an output shaft which are perpendicular to each other and are arranged in a rotating manner in a shell, sealing sleeves are coaxially sleeved on the input shaft and the output shaft, tapered sealing rings are respectively arranged on two sides of the edge of an inner ring of an annular sealing seat, each tapered sealing ring is sleeved with a tapered sleeve, elastic structures are arranged between the tapered sleeve and an annular baffle seat and between the tapered sleeve and an annular cover, and the tapered sleeves are pushed by the elastic structures to enable the tapered sealing rings to shrink towards the directions of the input shaft and the output shaft. When the sealing sleeve is used, the sealing sleeves are arranged on the input shaft and the output shaft, the annular sealing seats are arranged in the sealing sleeves, the two sides of the edge of the inner ring of each annular sealing seat are respectively provided with the conical sealing rings, and the conical sealing rings can be tightly held on the input shaft and the output shaft under the continuous pressure pushing of the conical sleeves, so that the input shaft and the output shaft can not leak after being used for a long time.

Inventors

  • CAO DONGXI
  • WANG AIMIN

Assignees

  • 天津联星传动有限公司

Dates

Publication Date
20260508
Application Date
20250709

Claims (9)

  1. 1. An oil leakage prevention speed reducer comprises a shell (1) and is characterized in that an input shaft (4) and an output shaft (9) which are perpendicular to each other are rotationally arranged in the shell (1), and the input shaft (4) and the output shaft (9) are in transmission connection through a gear transmission device; The input shaft (4) and the output shaft (9) are coaxially sleeved with a sealing sleeve (6), one end of the sealing sleeve (6) is connected with the shell (1), the other end of the sealing sleeve is provided with an annular cover (5), and one end, close to the shell (1), in the sealing sleeve (6) is coaxially provided with an annular baffle seat (25); An annular sealing seat (14) sleeved on the input shaft (4) and the output shaft (9) is arranged in the sealing sleeve (6), conical sealing rings (20) are respectively arranged on two sides of the edge of the inner ring of the annular sealing seat (14), and a conical sleeve (22) is sleeved on each conical sealing ring (20); Elastic structures are arranged between the conical sleeve (22) and the annular baffle seat (25) and between the conical sleeve (22) and the annular cover (5), so that the conical sleeve (22) is pushed by the elastic structures to enable the conical sealing ring (20) to shrink towards the directions of the input shaft (4) and the output shaft (9).
  2. 2. The oil leakage prevention speed reducer according to claim 1, wherein a plurality of seal rings (21) are provided on the inner walls of the conical seal ring (20) and the annular seal seat (14).
  3. 3. The oil leakage prevention speed reducer according to claim 1, wherein a blocking step (28) is arranged in the sealing sleeve (6), the annular sealing seat (14) is arranged at the blocking step (28), and a limit flange (29) is arranged on one side of the annular cover (5) close to the annular sealing seat (14); the annular cover (5) is detachably connected with the sealing sleeve (6), after the annular cover (5) is mounted on the end part of the sealing sleeve (6), the limiting flange (29) is arranged in the sealing sleeve (6), and the limiting flange (29) and the blocking step (28) form a cavity for accommodating the annular sealing seat (14).
  4. 4. The oil leakage prevention speed reducer according to claim 1, wherein an annular edge (7) is arranged on one side, close to the shell (1), of the sealing sleeve (6), the annular edge (7) is detachably connected with the shell (1), a sealing groove (27) is arranged at the inner edge of the annular edge (7), and an annular sealing ring (26) is arranged in the sealing groove (27).
  5. 5. The oil leakage prevention speed reducer according to any one of claims 1 to 4, wherein the elastic structure comprises a compression spring (23) arranged between the conical sleeve (22) and the annular baffle seat (25) and between the conical sleeve (22) and the annular cover (5), and the compression spring (23) is respectively sleeved on the input shaft (4) and the output shaft (9); The outside of each conical sleeve (22) is provided with a check ring (24), and two ends of the compression spring (23) are respectively in elastic contact with the check ring (24), the annular cover (5) and the annular baffle seat (25).
  6. 6. The oil leakage prevention speed reducer according to claim 5, wherein the annular spring seat (19) is coaxially arranged on the opposite side surfaces of the retainer ring (24) and the annular cover (5) and the opposite side surfaces of the retainer ring (24) and the annular baffle seat (25), and two ends of the compression spring (23) are respectively sleeved on the annular spring seat (19) or placed in the annular spring seat (19).
  7. 7. The oil leakage prevention speed reducer according to claim 6, wherein the gear transmission device comprises a first bevel gear (17) mounted on the end of the input shaft (4), one side of the first bevel gear (17) is vertically connected with a second bevel gear (11), and the second bevel gear (11) is mounted on the first mounting shaft (16); A first transmission gear (15) is further arranged on the first installation shaft (16), one side of the first transmission gear (15) is meshed with the second transmission gear (10), and the second transmission gear (10) is arranged on the second installation shaft (18); A third transmission gear (12) is arranged on the second installation shaft (18), one side of the third transmission gear (12) is meshed with a fourth transmission gear (13), the fourth transmission gear (13) is installed on the output shaft (9), and The first mounting shaft (16), the second mounting shaft (18) and the output shaft (9) are parallel, mounting holes corresponding to the input shaft (4), the first mounting shaft (16), the second mounting shaft (18) and the output shaft (9) are respectively formed in the shell (1), and the input shaft (4), the first mounting shaft (16), the second mounting shaft (18) and the output shaft (9) are rotatably mounted in the mounting holes; Both ends of the first installation shaft (16) and the second installation shaft (18) and one end of the output shaft (9) far away from the sealing sleeve (6) are respectively provided with a sealing end cover (2), and the edge of the sealing end cover (2) is detachably connected with the shell (1).
  8. 8. The oil leakage prevention speed reducer according to claim 1, wherein a cover (8) is detachably mounted on the top of the housing (1).
  9. 9. The oil leakage prevention speed reducer according to claim 1, wherein a plurality of supports (3) are provided at the bottom edge of the casing (1).

Description

Oil leakage prevention speed reducer Technical Field The utility model relates to the technical field of speed reducers, in particular to an oil leakage prevention speed reducer. Background The speed reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a driving element and a working machine, and plays a role in matching rotation speed and transmitting torque between the driving element and the working machine or an executing mechanism. The problem of speed reducer oil leak often can appear in input shaft and output shaft department, because when long-time operation, input shaft and output shaft can constantly rub with the oil blanket, so the oil blanket can wear out, causes input shaft and output shaft department to take place the oil leak, and most reasons are the oil leak that the oil blanket sealed effect is not good results in. Therefore, we propose an oil leakage prevention speed reducer. Disclosure of utility model The utility model provides an oil leakage prevention speed reducer, which has the advantages that a new sealing structure is designed at an output shaft and an input shaft, so that the output shaft and the input shaft cannot leak after long-time use, and the problems in the background technology are solved. The technical scheme includes that the oil leakage prevention speed reducer comprises a shell, an input shaft and an output shaft which are perpendicular to each other are rotationally arranged in the shell, the input shaft and the output shaft are in transmission connection through a gear transmission device, sealing sleeves are coaxially sleeved on the input shaft and the output shaft, one end of each sealing sleeve is connected with the shell, an annular cover is arranged at the other end of each sealing sleeve, an annular baffle seat is coaxially arranged at one end, close to the shell, of each sealing sleeve, an annular sealing seat sleeved on the input shaft and the output shaft is arranged in each sealing sleeve, conical sealing rings are respectively arranged on two sides of the edge of an inner ring of each annular sealing seat, a conical sleeve is sleeved on each conical sealing ring, elastic structures are respectively arranged between each conical sleeve and each annular baffle seat, and each conical sleeve is pushed by the elastic structures to enable the conical sealing rings to shrink towards the direction of the input shaft and the output shaft. Preferably, a plurality of sealing rings are arranged on the inner walls of the conical sealing ring and the annular sealing seat. Preferably, a blocking step is arranged in the sealing sleeve, the annular sealing seat is arranged at the blocking step, a limit flange is arranged on one side of the annular cover, which is close to the annular sealing seat, the annular cover is detachably connected with the sealing sleeve, after the annular cover is arranged on the end part of the sealing sleeve, the limit flange is arranged in the sealing sleeve, and the limit flange and the blocking step form a cavity for accommodating the annular sealing seat. Preferably, one side of the sealing sleeve, which is close to the shell, is provided with an annular edge, the annular edge is detachably connected with the shell, the inner edge of the annular edge is provided with a sealing groove, and an annular sealing ring is arranged in the sealing groove. Preferably, the elastic structure comprises compression springs arranged between the conical sleeve and the annular baffle seat and between the conical sleeve and the annular cover, the compression springs are respectively sleeved on the input shaft and the output shaft, check rings are respectively arranged outside each conical sleeve, and two ends of each compression spring are respectively in elastic contact with the check rings, the annular cover and the annular baffle seat. Preferably, the annular spring seat is coaxially arranged on the opposite side surfaces of the retainer ring and the annular cover and the opposite side surfaces of the retainer ring and the annular baffle seat, and the two ends of the compression spring are respectively sleeved on the annular spring seat or placed in the annular spring seat. Preferably, the gear transmission includes a first bevel gear mounted on the end of the input shaft, one side of the first bevel gear being vertically connected to a second bevel gear mounted on the first mounting shaft, The first transmission gear is further arranged on the first installation shaft, one side of the first transmission gear is meshed with the second transmission gear, the second transmission gear is arranged on the second installation shaft, the second installation shaft is further provided with a third transmission gear, one side of the third transmission gear is meshed with the fourth transmission gear, the fourth tr