Search

CN-224214666-U - External device of oil blanket

CN224214666UCN 224214666 UCN224214666 UCN 224214666UCN-224214666-U

Abstract

The utility model relates to the technical field of external oil seals, in particular to an external oil seal device which comprises a box body, wherein a sealing sleeve body is fixedly connected to the outer surface of the box body. When the oil seal is used, firstly, the oil seal is sleeved into the rotating shaft, the bulge on the cover plate is pressed into the access groove, after the cover plate reaches the limit groove, the cover plate is pressed and rotated ninety degrees, so that the bulge of the cover plate is clamped into the concave part of the limit groove, the cover plate is stopped to be pressed, the cover plate is clamped in the limit groove under the pushing action of the first spring, the oil seal is fixed, the two pressing blocks are pressed in opposite directions, the third spring is driven to compress, the clamping block is driven to be hidden into the extrusion block, the threaded protruding block is screwed into the threaded groove, the threaded protruding block gradually abuts against the annular strip and compresses the second spring, the cover plate is abutted against the oil seal, the pressing block is loosened to a proper compression degree, the third spring reset clamping block is clamped into the clamping groove, the fixation of the compression assembly is completed, the reverse operation is realized during the disassembly, and the damaged oil seal is convenient to replace through the arrangement of the compression assembly which can be simply installed and disassembled.

Inventors

  • YAN JIN
  • Shu Yuanhai

Assignees

  • 重庆全城油封有限公司

Dates

Publication Date
20260508
Application Date
20250523

Claims (8)

  1. 1. The oil seal external device is characterized by comprising a box body (1), wherein a sealing sleeve body (2) is fixedly connected to the outer surface of the box body (1), a rotating shaft (3) is inserted into the sealing sleeve body (2), an oil seal body (4) is sleeved on the outer surface of the rotating shaft (3) close to the box body (1), a first spring (5) is abutted to one side, far away from the box body (1), of the oil seal body (4), a cover plate (6) is fixedly connected to one side, far away from the oil seal body (4), of the first spring (5), a second spring (7) is fixedly connected to one side, far away from the oil seal body (4), of the second spring (7), a ring strip (8) is fixedly connected to one end, far away from the cover plate (6), of the ring strip (8) is slidably connected with a pressing assembly (9), and the sealing sleeve body (2) is slidably connected to the outer surface of the pressing assembly (9).
  2. 2. The external oil seal device according to claim 1, wherein the pressing assembly (9) comprises a threaded protruding block (10), a ring groove (11) is formed in the threaded protruding block (10), a ring strip (8) is connected to the inner wall of the ring groove (11) in a sliding mode, an extrusion block (12) is fixedly connected to one side, far away from the ring strip (8), of the threaded protruding block (10), a pressing groove (13) is formed in one side, far away from the threaded protruding block (10), of the extrusion block (12), a spring III (14) is fixedly connected to the inner wall of the pressing groove (13), a pressing block (15) is fixedly connected to one end, far away from the inner bottom wall of the pressing groove (13), of the spring III (14), a round groove (16) is formed in the inner wall of the pressing groove (13), a spring IV (17) is inserted into the round groove (16), and one end, far away from the round groove (16), of the spring IV (17) is fixedly connected with a clamping block (18).
  3. 3. The external oil seal device according to claim 1, wherein a plurality of clamping grooves (19) are formed in the inner wall, close to the clamping blocks (18), of the sealing sleeve body (2), one of the clamping grooves (19) is slidably connected with the clamping blocks (18), a thread groove (20) is formed in the inner wall, close to the thread protruding block (10), of the sealing sleeve body (2), and the thread protruding block (10) is slidably connected with the inner wall of the thread groove (20).
  4. 4. The external oil seal device according to claim 1, wherein the sealing sleeve body (2) is provided with a limiting groove (21) close to the inner wall of the cover plate (6), and the inner wall of the limiting groove (21) is provided with an inlet groove (22).
  5. 5. The external oil seal device according to claim 1, wherein a viewing groove (23) is formed in one side, close to the oil seal body (4), of the sealing sleeve body (2), and a transparent viewing block (24) is fixedly connected to the inner wall of the viewing groove (23).
  6. 6. The external oil seal device according to claim 5, wherein a first sealing ring (25) is fixedly connected to the edge of one side of the oil seal body (4) close to the cover plate (6), and a second sealing ring (26) is fixedly connected to the edge of one side of the transparent view block (24) close to the view groove (23).
  7. 7. The external oil seal device according to claim 3, wherein the two sets of clamping grooves (19) are arranged in a thread direction of the thread protruding block (10).
  8. 8. The external oil seal device according to claim 2, wherein the two groups of pressing blocks (15) are symmetrically distributed on two sides of the rotating shaft (3).

Description

External device of oil blanket Technical Field The utility model relates to the technical field of oil seal exteriorization, in particular to an oil seal exteriorization device. Background The external oil seal device is used for sealing a rotating shaft or a reciprocating motion part, is arranged outside the sealed part, is generally composed of a plurality of parts to realize better sealing effect and function, is used for sealing the rotating shaft of equipment such as an oil pump, an oil cylinder, a speed reducer and the like in hydraulic systems and lubricating systems of various machine tools, engineering machinery, mining machinery and the like, preventing hydraulic oil and lubricating oil from leaking, is also used for sealing the parts such as a crankshaft, a camshaft and a transmission input/output shaft of an automobile engine, ensuring the sealing performance of engine lubricating oil and transmission oil, improving the reliability and durability of the automobile, and is also used for sealing the rotating shaft or the reciprocating motion part containing corrosive, toxic and other mediums in equipment such as a reaction kettle, a pump, a compressor and the like in chemical production, and preventing the medium from leaking to cause safety accidents and environmental pollution. According to the oil seal device for the oil pumping machine speed reducing box disclosed by the Chinese patent utility model with the publication number of CN212717904U, the oil seal device comprises an external oil seal, a compressing structure, a compressing part and an external oil seal and compressing structure, wherein the external oil seal comprises a sealing ring body used for being tightly held outside an output shaft, the compressing structure comprises a fixed support fixedly connected with a box body or an oil seal cover plate of the speed reducing box, and the compressing part is arranged on the fixed support and is used for directly or indirectly pressing the sealing ring body in the axial direction to compress the oil seal cover plate, so that an oil leakage gap between the oil seal cover plate and the output shaft is blocked, the external oil seal and the compressing structure are arranged outside the speed reducing box, the problem of oil leakage is solved from the outside of the speed reducing box, the whole speed reducing box is not required to be disassembled or a dead oil seal in the speed reducing box is replaced, the sealing ring body is always subjected to pushing action of a movable body, the sealing effect can be guaranteed by a technician, the oil leakage problem is improved, and meanwhile, the maintenance efficiency is also improved, and the well stopping time is shortened. But the device lacks the function that can simply change the oil blanket, when using, the device is because fixed bolster and reduction gearbox box and oil blanket apron fixed connection, at first need demolish the fixed bolster when leading to changing the oil blanket, and the operation is complicated, increases time cost. Disclosure of utility model The utility model aims to provide an oil seal external device for solving the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides an external device of oil blanket, includes the box, the external fixedly connected with seal cover body of box, the inside grafting of seal cover body has the pivot, the pivot has cup jointed the oil blanket near the surface of box, one side butt that the box was kept away from to the oil blanket has spring one, one end fixedly connected with apron of keeping away from the oil blanket of spring one, one side fixedly connected with spring two of oil blanket is kept away from to the apron, one end fixedly connected with ring strip of apron is kept away from to spring two, ring strip surface sliding connection has the compression assembly, compression assembly surface sliding connection has the seal cover body. Preferably, the compacting component comprises a threaded lug, a ring groove is formed in the threaded lug, a ring strip is connected to the inner wall of the ring groove in a sliding manner, an extrusion block is fixedly connected to one side, away from the ring strip, of the threaded lug, a pressing groove is formed in one side, away from the threaded lug, of the extrusion block, a spring III is fixedly connected with the inner wall of the pressing groove, one end, away from the bottom wall of the pressing groove, of the spring III is fixedly connected with a pressing block, a round groove is formed in the inner wall of the pressing groove, a spring IV is inserted into the round groove, and one end, away from the round groove, of the spring IV is fixedly connected with a clamping block. Preferably, the seal cover body is close to the inner wall of the fixture block and is provided with a plurality of clamping grooves, one