CN217255985U - Crankshaft oil seal mounting tool - Google Patents
Crankshaft oil seal mounting tool Download PDFInfo
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- CN217255985U CN217255985U CN202122367053.5U CN202122367053U CN217255985U CN 217255985 U CN217255985 U CN 217255985U CN 202122367053 U CN202122367053 U CN 202122367053U CN 217255985 U CN217255985 U CN 217255985U
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- oil seal
- intermediate shaft
- hole
- pressing sleeve
- limiting
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Abstract
The utility model discloses a bent axle oil blanket mounting tool, include: the oil seal positioning disc and the outer pressing sleeve are sleeved on the intermediate shaft, the outer pressing sleeve is positioned on the outer side of the oil seal positioning disc, the intermediate shaft can rotate relative to the oil seal positioning disc, and the outer pressing sleeve is in threaded connection with the intermediate shaft; be provided with spacing oil blanket positioning disk cover axial displacement's axial limit structure on the jackshaft, the jackshaft is provided with the drive operation end, and the drive operation end stretches out the outer cover that presses. When the electric wrench or the pneumatic wrench is used for operating the driving operation end of the intermediate shaft, the outer pressing sleeve moves along the axial direction of the intermediate shaft and pushes the oil seal to move forwards under the rotation of the intermediate shaft, and the oil seal is pressed to the corresponding position of the crankshaft. The manual oil seal mounting tool is simple to operate, high in assembly efficiency and far higher than the working efficiency of a traditional manual oil seal mounting tool.
Description
Technical Field
The utility model relates to the technical field of engines, concretely relates to instrument of engine crankshaft oil blanket installation.
Background
In an engine, a crankshaft oil seal is provided on a crankshaft of the engine in order to prevent oil in a cylinder block from leaking outside. During the process of assembling or maintaining engine parts, the installation and replacement of the crankshaft oil seal are always difficult.
In the prior art, an oil seal installation tool is usually pressed on an oil seal, a nut on the oil seal installation tool is screwed up manually through an open spanner so as to push the oil seal and press the oil seal to a proper position, and the operation is complex and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model aims to solve the technical problem that an oil blanket mounting tool is provided can improve oil blanket installation effectiveness, easy operation.
In order to solve the technical problem, the utility model discloses a following technical scheme:
bent axle oil blanket mounting tool includes: oil blanket positioning disk and outer cover of pressing, the mounting hole has been seted up on the oil blanket positioning disk, its characterized in that:
the oil seal positioning disc and the outer pressing sleeve are sleeved on an intermediate shaft, the outer pressing sleeve is positioned on the outer side of the oil seal positioning disc, the intermediate shaft can rotate relative to the oil seal positioning disc, and the outer pressing sleeve is in threaded connection with the intermediate shaft;
the middle shaft is provided with an axial limiting structure for limiting the axial movement of the oil seal positioning disc sleeve, and the middle shaft is provided with a driving operation end which extends out of the outer pressing sleeve.
Preferably: the driving operation end is provided with a connecting hole matched with the output end of the driving device, and the connecting hole is a square hole.
Preferably: the limiting structure comprises a limiting boss and a limiting check ring, the limiting boss is located at the non-driving operation end of the intermediate shaft, a limiting check ring mounting groove is formed in the intermediate shaft, and the limiting check ring is arranged in the limiting check ring mounting groove.
Preferably: the oil seal positioning disc is provided with a first central hole for the intermediate shaft to pass through, the first central hole is a stepped hole, the stepped hole comprises a large hole located at the front end of the oil seal positioning disc and a small hole located at the rear part of the large hole, the limiting boss of the intermediate shaft is located in the large hole, and the diameter of the small hole is smaller than that of the limiting boss.
Preferably: the outer pressing sleeve is provided with a second center hole for the intermediate shaft to pass through, the second center hole is a threaded hole, and the intermediate shaft comprises a threaded section matched with the second center hole.
Preferably: the front end of the outer pressure sleeve is provided with a thrust structure for preventing the oil seal from being overpressured.
Preferably: the outer pressure sleeve comprises a cylindrical portion and a cylindrical edge portion, the cylindrical edge portion is arranged to be a disc body which extends outwards along the radial direction of the cylindrical portion, a protruding ring is arranged on the front end face of the disc body, and the outer peripheral surface of the protruding ring and the front end face of the disc body form the thrust structure.
Preferably, the following components: the bottom of the cylindrical part is provided with a plurality of air holes.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the oil seal positioning disc and the outer pressing sleeve of the oil seal mounting tool of the utility model are sleeved on the intermediate shaft, the outer pressing sleeve is positioned on the oil seal positioning disc, the intermediate shaft can rotate relative to the oil seal positioning disc, and the outer pressing sleeve is in threaded connection with the intermediate shaft; be provided with spacing oil blanket positioning disk cover along axial displacement's axial limit structure on the jackshaft, the jackshaft is provided with the drive operation end, and the drive operation end stretches out outer pressure cover. During the use, fix the oil blanket positioning disk on the bent axle, then overlap the oil blanket on the oil blanket positioning disk, rotatory jackshaft or outer pressure cover make the second centre bore threaded connection cooperation on jackshaft thread section and the outer pressure cover, use the drive operation end of operating the jackshaft on electric spanner or the air wrench, under the rotation of jackshaft, outer pressure cover will be along jackshaft axial displacement and bulldoze the oil blanket and move forward, and the oil blanket is pressed the relevant position of bent axle. The manual oil seal mounting tool is simple to operate, high in assembling efficiency and far higher than the working efficiency of a traditional manual oil seal mounting tool.
Drawings
FIG. 1 is a schematic structural view of a crankshaft oil seal mounting tool of the present invention;
FIG. 2 is a schematic cross-sectional view of the crankshaft oil seal installation tool of FIG. 1;
FIG. 3 is an exploded view of the crankshaft oil seal installation tool of FIG. 1;
in the figure:
1. an oil seal positioning disc; 11. mounting holes; 12. a first central aperture; 121. macropores; 122. a small hole; 2. externally pressing the sleeve; 20. a second central aperture; 21. a cylindrical portion; 211. air holes are formed; 22. a barrel edge portion; 23. a projecting ring; 3. a limit retainer ring; 4. an intermediate shaft; 41. driving the operation end; 411. connecting holes; 412. a limiting retainer ring mounting groove; 42. a limiting boss; 43. a threaded segment.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided in conjunction with the accompanying drawings and specific embodiments for further understanding the objects, aspects and functions of the present invention, but not for limiting the scope of the appended claims.
As shown in fig. 1, 2 and 3 in common, the crankshaft oil seal installation tool includes: the oil seal positioning disc comprises an oil seal positioning disc 1 and an outer pressing sleeve 2, wherein a mounting hole 11 is formed in the oil seal positioning disc 1, the oil seal positioning disc 1 and the outer pressing sleeve 2 are sleeved on an intermediate shaft 4, the outer pressing sleeve 2 is positioned on the outer side of the oil seal positioning disc 1, the intermediate shaft can rotate relative to the oil seal positioning disc, and the outer pressing sleeve is in threaded connection with the intermediate shaft; the middle shaft 4 is provided with an axial limiting structure for limiting the axial movement of the oil seal positioning disc 1, the middle shaft 4 can rotate relative to the oil seal positioning disc 1, the middle shaft 4 is provided with a driving operation end 41, and the driving operation end 41 extends out of the outer pressing sleeve 2. The driving device includes, but is not limited to, an electric wrench or a pneumatic wrench.
The driving operation end 41 is provided with a connecting hole 411 matched with an output end of the driving device, and the connecting hole 411 is a square hole.
The limiting structure comprises a limiting boss 42 and a limiting check ring 3, the limiting boss 42 is located at the non-driving operation end of the intermediate shaft 4, a limiting check ring installation groove 412 is formed in the intermediate shaft 4, and the limiting check ring 3 is arranged in the limiting check ring installation groove 412.
A first central hole 12 is formed on the oil seal positioning disc 1, a second central hole 20 is correspondingly formed on the outer pressing sleeve, the first central hole 12 and the second central hole 20 are used for the intermediate shaft 4 to pass through,
the first central hole 12 is a stepped hole, the stepped hole includes a large hole 121 located at the front end of the oil seal positioning disc 1 and a small hole 122 located at the rear part of the large hole 121, the limit boss 42 of the intermediate shaft 4 is located in the large hole 121, and the diameter of the small hole 122 is smaller than that of the limit boss 42; the second central bore 20 is provided as a threaded bore. Be equipped with screw thread section 43 on the jackshaft 4, second centre bore 20 and the screw thread section of jackshaft are connected, through rotating jackshaft 4, realize pressing the axial displacement of cover 2 relative jackshaft 4 outward, and then advance oil blanket positioning disk 1 oil blanket and press to the relevant position.
The front end of the outer pressure sleeve 2 is provided with a thrust structure for preventing the oil seal from being overpressured. The outer pressure sleeve 2 comprises a cylindrical part 21 and a cylindrical edge part 22, the cylindrical edge part 22 is arranged to be a disc body extending outwards along the radial direction of the cylindrical part 21, a protruding ring 23 is arranged on the front end face of the disc body, and the outer peripheral surface of the protruding ring 23 and the front end face of the disc body form the thrust structure.
When the oil seal is pressed to an adaptive position, the thrust structure can limit the outer pressure sleeve 2 to continuously move forwards, so that the outer pressure sleeve 2 is prevented from overpressure the oil seal.
The outer pressing sleeve 2 is convenient to move and press-fit, and particularly, a plurality of air holes 211 are formed at the bottom of the cylindrical part 21 of the outer pressing sleeve 2. When the front end of the outer pressing sleeve 2 pushes towards the crankshaft and presses the crankshaft oil seal, gas between the oil seal positioning disc 1 and the outer pressing sleeve 2 is discharged through the air holes 211, so that the air pressure between the oil seal positioning disc 1 and the outer pressing sleeve 2 is reduced, and the outer pressing sleeve 2 is convenient to move and press.
The using method comprises the following steps:
during the use, pass mounting hole 11 with the bolt earlier and fix oil blanket positioning disk 1 on the bent axle, then overlap the oil blanket on oil blanket positioning disk 1, rotatory jackshaft 4 or outer pressure cover 2 make the screw thread section on the jackshaft and the cooperation of the second centre bore threaded connection on the outer pressure cover 2, use the output (usually square head end) on electric spanner or the pneumatic spanner to insert in the quad slit of drive operation end 41 on jackshaft 4 at last. Make the spanner rotate, because the inertia of outer pressure cover 2 is big, under the rotation of jackshaft 4, outer pressure cover 2 will be along 4 axial displacement of jackshaft and bulldoze the oil blanket and move forward, and oil blanket sealing on the oil blanket positioning disk 1 breaks away from its front end gradually and overlaps on the bent axle, and when the oil blanket was pressed the relevant position of bent axle, the completion assembly.
And the assembly efficiency of the crankshaft oil seal is improved by adopting driving devices such as an electric wrench or a pneumatic wrench. The crankshaft oil seal mounting tool is simple in structure, and enables the crankshaft oil seal to be stressed uniformly, so that the crankshaft oil seal is prevented from being damaged, the success rate of mounting the crankshaft oil seal is improved, and simplified assembly of the crankshaft oil seal is realized.
The present invention is not limited to the above embodiments, and all improvements made based on the concept, principle, structure and method of the present invention are all within the protection scope of the present invention.
Claims (8)
1. Bent axle oil blanket mounting tool includes: oil blanket positioning disk and outer cover of pressing, the mounting hole has been seted up on the oil blanket positioning disk, its characterized in that:
the oil seal positioning disc and the outer pressing sleeve are sleeved on an intermediate shaft, the outer pressing sleeve is positioned on the outer side of the oil seal positioning disc, the intermediate shaft can rotate relative to the oil seal positioning disc, and the outer pressing sleeve is in threaded connection with the intermediate shaft;
the middle shaft is provided with an axial limiting structure for limiting the axial movement of the oil seal positioning disc sleeve, and the middle shaft is provided with a driving operation end which extends out of the outer pressing sleeve.
2. A crankshaft oil seal installation tool as claimed in claim 1, wherein: the driving operation end is provided with a connecting hole matched with the output end of the driving device, and the connecting hole is a square hole.
3. A crankshaft oil seal installation tool as defined in claim 1, wherein: the limiting structure comprises a limiting boss and a limiting check ring, the limiting boss is located at the non-driving operation end of the intermediate shaft, a limiting check ring mounting groove is formed in the intermediate shaft, and the limiting check ring is arranged in the limiting check ring mounting groove.
4. A crankshaft oil seal installation tool as claimed in claim 3, wherein: the oil seal positioning disc is provided with a first center hole for the middle shaft to penetrate through, the first center hole is a stepped hole, the stepped hole comprises a large hole located at the front end of the oil seal positioning disc and a small hole located at the rear part of the large hole, the limiting boss of the middle shaft is located in the large hole, and the diameter of the small hole is smaller than that of the limiting boss.
5. A crankshaft oil seal installation tool according to claim 4, wherein: the outer pressing sleeve is provided with a second center hole for the intermediate shaft to pass through, the second center hole is a threaded hole, and the intermediate shaft comprises a threaded section matched with the second center hole.
6. A crankshaft oil seal installation tool as claimed in claim 1, wherein: the front end of the outer pressure sleeve is provided with a thrust structure for preventing the oil seal from being overpressured.
7. A crankshaft oil seal installation tool as claimed in claim 6, wherein: the outer pressure sleeve comprises a cylindrical portion and a cylindrical edge portion, the cylindrical edge portion is arranged to be a disc body which extends outwards along the radial direction of the cylindrical portion, a protruding ring is arranged on the front end face of the disc body, and the outer peripheral surface of the protruding ring and the front end face of the disc body form the thrust structure.
8. A crankshaft oil seal installation tool as claimed in claim 7, wherein: the bottom of the cylindrical part is provided with a plurality of air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367053.5U CN217255985U (en) | 2021-09-27 | 2021-09-27 | Crankshaft oil seal mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367053.5U CN217255985U (en) | 2021-09-27 | 2021-09-27 | Crankshaft oil seal mounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217255985U true CN217255985U (en) | 2022-08-23 |
Family
ID=82853706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122367053.5U Active CN217255985U (en) | 2021-09-27 | 2021-09-27 | Crankshaft oil seal mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217255985U (en) |
-
2021
- 2021-09-27 CN CN202122367053.5U patent/CN217255985U/en active Active
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