CN221291106U - Framework oil seal dismantling device - Google Patents
Framework oil seal dismantling device Download PDFInfo
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- CN221291106U CN221291106U CN202323190150.7U CN202323190150U CN221291106U CN 221291106 U CN221291106 U CN 221291106U CN 202323190150 U CN202323190150 U CN 202323190150U CN 221291106 U CN221291106 U CN 221291106U
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- oil seal
- cylindrical
- cylindrical sleeve
- framework oil
- sleeve
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 230000013011 mating Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 70
- 238000010586 diagram Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The application provides a framework oil seal dismantling device, which comprises a cylindrical sleeve and a push rod, wherein the cylindrical sleeve comprises a first end and a second end, and a cylindrical cavity extending from the first end to the second end to a preset depth is arranged in the cylindrical sleeve; the first end of the cylindrical sleeve is in a truncated cone shape, and conical threads are arranged on the circumferential surface of the truncated cone structure; the second end of the cylindrical sleeve is provided with a matching hole penetrating into the cylindrical cavity from the end face of the second end of the cylindrical sleeve, and an internal thread is arranged in the matching hole. The ejector rod comprises an operation part and a threaded rod connected with the operation part, and the threaded rod is in threaded fit with the matching hole. When the cylindrical cavity is used, the cylindrical cavity is sleeved on the shaft penetrating through the middle of the framework oil seal, and at least one part of the conical thread at the first end of the cylindrical sleeve is screwed into a gap between the framework oil seal and the shaft. According to the technical scheme, the framework oil seal in the counter bore can be quickly disassembled, adjacent parts of the framework oil seal are not damaged, and meanwhile the purposes of quick and labor-saving maintenance are achieved.
Description
Technical Field
The application relates to the technical field of framework oil seal disassembly and assembly, in particular to a framework oil seal disassembly device.
Background
The skeleton oil seal is generally used for isolating parts needing lubrication in transmission parts from the external environment, so that lubricating oil cannot leak. The skeleton oil seal may fail due to product quality, assembly, wear, deformation, aging, media compatibility, etc., resulting in oil leakage. Therefore, in order to ensure the product quality and the normal operation of the equipment, the framework oil seal must be replaced regularly.
In the partial structure of the skeleton oil seal shown in fig. 1, the skeleton oil seal 01 is sleeved on the shaft 02 and is arranged in a counter bore around the shaft 02. For the framework oil seal installed in the counter bore, no better tool or method is available at present for quickly replacing the failed framework oil seal.
For example, for some large factories producing hydraulic pumps worldwide, replacement of the skeleton oil seal tools recommended in their service manuals is also self-tapping. The specific operation mode is that a self-tapping screw is screwed into the framework oil seal, and then the framework oil seal is pulled out by a locking pliers or a vice. However, in actual operation, the combination of the installation parts of the framework oil seals is too tight, so that the framework oil seals are difficult to pull out. And the way of screwing in the self-tapping screw may also bring the risk of scraping or damaging other structures.
For another example, some chisels may be used in the prior art to knock in the skeleton oil seal or the joint of the skeleton oil seal and other structures, so as to deform the skeleton oil seal to detach the skeleton oil seal. However, the method of knocking in the chisel is extremely dangerous, the bearing may be damaged, the inner hole may be scratched, and the framework oil seal may not be smoothly removed.
Disclosure of utility model
The embodiment of the application aims to provide a framework oil seal dismantling device which can be used for rapidly dismantling a framework oil seal in a counter bore, ensuring that adjacent parts of the framework oil seal are not damaged, and simultaneously achieving the purposes of rapid and labor-saving maintenance.
The application provides a framework oil seal dismantling device which comprises a cylindrical sleeve and a push rod.
Wherein the cylindrical sleeve comprises a first end and a second end, and a cylindrical cavity extending from the first end to the second end by a predetermined depth is arranged in the cylindrical sleeve; the first end of the cylindrical sleeve is in a truncated cone shape, and conical threads are arranged on the circumferential surface of the truncated cone structure; the second end of the cylindrical sleeve is provided with a matching hole penetrating into the cylindrical cavity from the end face of the second end of the cylindrical sleeve, and an internal thread is arranged in the matching hole. The ejector rod comprises an operation part and a threaded rod connected with the operation part, and the threaded rod is in threaded fit with the matching hole. When the cylindrical cavity is used, the cylindrical cavity is sleeved on the shaft penetrating through the middle of the framework oil seal, and at least one part of the conical thread at the first end of the cylindrical sleeve is screwed into a gap between the framework oil seal and the shaft.
In one embodiment, the outer surface of the second end of the cylindrical sleeve is provided with a grip for handling the gripping of the tool.
In one embodiment, the clamping portion has a hexagonal head configuration.
In one embodiment, the number of the ejector pins is plural, and the lengths of the threaded pins of the plurality of ejector pins are different.
In one embodiment, the threaded rod of the ejector rod has a conical structure at an end thereof remote from the operating portion.
In one embodiment, the outer shape of the operating portion of the jack is a hexagonal head structure.
In one embodiment, a cylindrical sleeve comprises: the cylindrical structure with a through hole comprises a first end and a second end, and the outer surface of the first end of the cylindrical structure is provided with a conical thread; the tail end structure comprises a first end and a second end, and a matching hole penetrating through the end face of the second end of the tail end structure is formed; in use, the first end of the tail end structure is in threaded engagement with the second end of the barrel structure.
In one embodiment, a cylindrical sleeve comprises: the cylindrical structure with a through hole comprises a first end and a second end, and the outer surface of the first end of the cylindrical structure is provided with a conical thread; the tail end structure comprises a first end and a second end, and a matching hole penetrating through the end face of the second end of the tail end structure is formed; an elongated sleeve having a through bore, including a first end and a second end; when the novel telescopic wrench is used, the second end of the cylinder structure is in threaded fit connection with the first end of the lengthening sleeve, and the second end of the lengthening sleeve is in threaded fit connection with the first end of the tail end structure.
In one embodiment, the number of lengthening sleeves is one or more when the framework oil seal removing device is used; when the number of the lengthening sleeves is multiple, the multiple lengthening sleeves are sequentially connected in a threaded mode to form an integral structure, and two ends of the integral structure are respectively connected with the second end of the cylinder structure and the first end of the tail end structure in a threaded mode.
Compared with the prior art, the application has the beneficial effects that at least:
When the framework oil seal dismantling device is used, the cylindrical cavity is sleeved on the shaft penetrating through the middle of the framework oil seal, and at least part of the conical thread at the first end of the cylindrical sleeve is screwed into a gap between the framework oil seal and the shaft. Specifically, along with the screwing-in of the cylindrical sleeve, the conical thread at the lower part is screwed into a gap between the framework oil seal and the shaft, and the cylindrical sleeve is continuously screwed in, so that the conical thread can support the inner ring of the framework oil seal, and the framework oil seal is deformed to a certain extent. After the framework oil seal reaches a certain deformation, the framework oil seal is screwed into the ejector rod, so that the end part of the threaded rod of the ejector rod is propped against the end surface of the shaft. And the ejector rod is continuously screwed in, the framework oil seal is supported and pulled out by the conical thread of the cylindrical sleeve along with the screwing in of the ejector rod, and the ejector rod is continuously screwed in until the framework oil seal is removed from the counter bore.
In summary, the framework oil seal dismantling device does not need knocking operation, only has rotary action, and reduces damage to other parts. The whole operation is simple and labor-saving, the cooperation of multiple persons is not needed, and the maintenance time of the framework oil seal can be shortened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a partial structure of a framework oil seal in the prior art;
FIG. 2 is a block diagram of a frame oil seal removal apparatus according to an embodiment of the present application showing a cylindrical sleeve and a jack as one body;
FIG. 3 is an exploded view of the frame oil seal removal apparatus of FIG. 2;
FIG. 4 is a view of a use scenario of the framework oil seal removal device of FIG. 2;
FIG. 5 is a vertical cross-sectional view of the framework oil seal removal apparatus of FIG. 2 in an in-use condition;
FIG. 6 is a block diagram of a frame oil seal removal apparatus having a split cylindrical sleeve and a carrier rod according to an embodiment of the present application;
FIG. 7 is an exploded view of the frame oil seal removal apparatus of FIG. 6;
FIG. 8 is a vertical cross-sectional view of the frame oil seal removal apparatus of FIG. 6;
FIG. 9 is a block diagram illustrating a frame oil seal removal apparatus including an extension sleeve according to an embodiment of the present application;
FIG. 10 is an exploded view of the frame oil seal removal apparatus of FIG. 9;
fig. 11 is a vertical sectional view of the frame oil seal removing apparatus of fig. 9.
In the figure: 01. a framework oil seal; 02. a shaft; 10. a cylindrical sleeve; 11. a cylindrical cavity; 12. taper thread; 13. a mating hole; 14. a clamping part; 101. a cylindrical structure; 1011. a first external thread; 102. a tail end structure; 1021. a first internal thread; 103. adding a long sleeve; 1031. a second internal thread; 1032. a second external thread; 20. a push rod; 21. an operation unit; 22. a threaded rod; 221. conical structure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 2 and 3, the present embodiment provides a frame oil seal removing device including a cylindrical sleeve 10 and a jack 20. The cylindrical sleeve 10 includes a first end and a second end, and a cylindrical cavity 11 extending a predetermined depth from the first end toward the second end is provided in the cylindrical sleeve 10; the first end of the cylindrical sleeve 10 is in a truncated cone shape, and a conical thread 12 is arranged on the circumferential surface of the truncated cone structure; the second end of the cylindrical sleeve 10 is provided with a fitting hole 13 penetrating from the second end face thereof into the cylindrical cavity 11, and the fitting hole 13 is provided with an internal thread. The ejector 20 includes an operation portion 21 and a threaded rod 22 connected to the operation portion 21, and the threaded rod 22 is screw-fitted to the fitting hole 13.
In use, as shown in figures 4 and 5, the cylindrical cavity 11 is sleeved on the shaft passing through the middle of the framework oil seal, and at least a part of the conical thread 12 at the first end of the cylindrical sleeve 10 is screwed into the gap between the framework oil seal 01 and the shaft 02. Along with the screwing-in of the cylindrical sleeve 10, the conical thread 12 at the lower part is screwed into a gap between the framework oil seal 01 and the shaft 02, and the cylindrical sleeve 10 is screwed in continuously, the conical thread 12 can support the inner ring of the framework oil seal 01, so that the framework oil seal 01 is deformed to a certain extent. After the framework oil seal 01 reaches a certain deformation amount, the ejector rod 20 is screwed in, so that the end part of the threaded rod 22 of the ejector rod 20 is propped against the end surface of the shaft 02. Continuing to screw in the ejector rod 20, the framework oil seal 01 is supported and pulled out by the conical thread 12 of the cylindrical sleeve 10 along with the screw in of the ejector rod 20, and the screw in of the ejector rod 20 is continued until the framework oil seal 01 is removed from the counter bore.
In summary, the framework oil seal dismantling device does not need knocking operation, only has rotary action, and reduces damage to other parts. The whole operation is simple and labor-saving, the cooperation of multiple persons is not needed, and the maintenance time of the framework oil seal can be shortened.
It should be noted that, the wall thickness of the tapered thread 12 at the position closest to the first end of the cylindrical sleeve 10 is set to be very thin and sharp, which facilitates insertion into the gap between the frame oil seal and the shaft.
In the present embodiment, as shown in fig. 2, the outer surface of the second end of the cylindrical sleeve 10 is provided with a grip portion 14 for operating the gripping of the tool. The clamping portion 14 may have a hexagonal head structure for facilitating clamping of tools such as wrenches.
In this embodiment, the number of the ejector pins 20 is plural, and the lengths of the threaded rods 22 of the ejector pins 20 are different. The framework oil seal dismantling device of this embodiment may be provided with a plurality of ejector rods 20 with different lengths, and the ejector rods 20 with corresponding lengths may be selected for different distances between the end of the shaft and the framework oil seal.
In the present embodiment, as shown in fig. 3 and 5, an end of the threaded rod 22 of the ejector rod 20 remote from the operation portion 21 may be a conical structure 221. For a shaft with a central bore, the tip of the cone structure 221 may contact the central bore of the shaft to form a center alignment.
In this embodiment, as shown in fig. 3, the outer shape of the operation portion 21 of the ejector pin 20 is a hexagonal head structure, which is convenient for clamping and applying force of tools such as a wrench.
In one version of the present embodiment, as shown in fig. 6, 7 and 8, the cylindrical sleeve 10 may include a cylindrical structure 101 having a through hole and a tail end structure 102. The cylindrical structure 101 comprises a first end and a second end, and the outer surface of the first end of the cylindrical structure 101 is provided with a conical thread 12. The tail end structure 102 includes a first end and a second end, and the second end of the tail end structure 102 is provided with a mating hole 13 therethrough. In use, the first end of the tail end structure 102 is threadedly coupled to the second end of the barrel structure 101.
Specifically, for example, as shown in fig. 7, the second end outer surface of the cylindrical structure 101 may be provided with a first external thread 1011, and the first end of the tail end structure 102 may be provided with a first internal thread 1021. In use, the first external thread 1011 at the second end of the cylindrical structure 101 mates with the first internal thread 1021 at the first end of the trailing structure 102 so that the cylindrical structure 101 and the trailing structure 102 are spliced together.
The detachable structure of the cylindrical sleeve 10 can be convenient for replacing the cylindrical structures 101 with different lengths, so as to adapt to different disassembly and assembly environments, namely, the distance between some framework oil seals and the off-axis end face is long or short, and the cylindrical structures 101 with different lengths can be adopted for different sizes.
In another version of this embodiment, as shown in fig. 9, 10 and 11, the cylindrical sleeve 10 may include a cylindrical structure 101 having a through hole, a tail end structure 102 and an elongated sleeve 103. The cylindrical structure 101 comprises a first end and a second end, and the outer surface of the first end of the cylindrical structure 101 is provided with a conical thread 12. The tail end structure 102 includes a first end and a second end, and the second end of the tail end structure 102 is provided with a mating hole 13 therethrough. An elongated sleeve 103 having a through bore includes a first end and a second end. In use, the second end of the cylindrical structure 101 is threadedly coupled to the first end of the extension sleeve 103, and the second end of the extension sleeve 103 is threadedly coupled to the first end of the tail structure 102.
Specifically, for example, as shown in fig. 10, the outer surface of the second end of the cylindrical structure 101 may be provided with a first external thread 1011, the first end of the tail end structure 102 may be provided with a first internal thread 1021, the outer surface of the first end of the extension sleeve 103 may be provided with a second internal thread 1031, and the outer surface of the second end of the extension sleeve 103 may be provided with a second external thread 1032. In use, the first external thread 1011 at the second end of the cylindrical structure 101 mates with the second internal thread 1031 at the first end of the extension sleeve 103, and the second external thread 1032 at the second end of the extension sleeve 103 mates with the first internal thread 1021 at the first end of the tail end structure 102, such that the cylindrical structure 101, the extension sleeve 103 and the tail end structure 102 are integrally spliced.
The use of the extension sleeve 103 described above can increase the overall length of the sleeve 10 to accommodate different disassembly and assembly conditions. That is, the length of the cylindrical sleeve 10 may be lengthened by selecting the lengthening sleeve 103 having a corresponding length according to the difference between the shaft end and the frame oil seal.
The number of extension sleeves 103 may be one or more when using a framework oil seal removal device; when the number of the lengthening sleeves 103 is multiple, the lengthening sleeves 103 are sequentially connected in a threaded mode from head to tail to form an integral structure, and two ends of the integral structure are respectively connected with the second end of the cylinder structure 101 and the first end of the tail end structure 102 in a threaded mode.
The use of the plurality of elongated sleeves 103 as described above can further increase the overall length of the sleeve 10 to accommodate different disassembly and assembly conditions. That is, a plurality of lengthening sleeves 103 may be selected to lengthen the length of the cylindrical sleeve 10 for different distances between the shaft end and the frame oil seal.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. The utility model provides a device is demolishd to skeleton oil blanket which characterized in that includes:
A cylindrical sleeve (10) comprising a first end and a second end, said cylindrical sleeve (10) having a cylindrical cavity (11) disposed therein extending a predetermined depth from said first end toward said second end; the first end of the cylindrical sleeve (10) is in a truncated cone shape, and conical threads (12) are arranged on the circumferential surface of the truncated cone structure; the second end of the cylindrical sleeve (10) is provided with a matching hole (13) penetrating into the cylindrical cavity (11) from the second end face of the cylindrical sleeve, and the matching hole (13) is internally provided with internal threads;
A push rod (20) comprising an operation part (21) and a threaded rod (22) connected with the operation part (21), wherein the threaded rod (22) is in threaded fit with the fit hole (13);
When the cylindrical cavity (11) is used, the cylindrical cavity is sleeved on a shaft penetrating through the middle of the framework oil seal, and at least one part of the conical thread (12) at the first end of the cylindrical sleeve (10) is screwed into a gap between the framework oil seal and the shaft.
2. A frame oil seal removal apparatus as claimed in claim 1, wherein an outer surface of the second end of the cylindrical sleeve (10) is provided with a clamping portion (14) for operating tool clamping.
3. The frame oil seal removing device according to claim 2, wherein the clamping portion (14) has a hexagonal head structure in shape.
4. The frame oil seal removing device according to claim 1, wherein the number of the ejector rods (20) is plural, and the lengths of the threaded rods (22) of the plurality of ejector rods (20) are different.
5. The frame oil seal removing device according to claim 1, wherein an end of the threaded rod (22) of the ejector rod (20) away from the operating portion (21) is a conical structure (221).
6. The frame oil seal removing device according to claim 5, wherein the outer shape of the operation portion (21) of the jack (20) is a hexagonal head structure.
7. The frame oil seal removal apparatus as defined in any one of claims 1 to 6, wherein the cylindrical sleeve (10) includes:
A cylindrical structure (101) with a through hole, comprising a first end and a second end, wherein the conical thread (12) is arranged on the outer surface of the first end of the cylindrical structure (101);
-a tail end structure (102) comprising a first end and a second end, the second end face of the tail end structure (102) being provided with the mating hole (13) therethrough;
In use, the first end of the tail end structure (102) is in threaded engagement with the second end of the barrel structure (101).
8. The frame oil seal removal apparatus as defined in any one of claims 1 to 6, wherein the cylindrical sleeve (10) includes:
A cylindrical structure (101) with a through hole, comprising a first end and a second end, wherein the conical thread (12) is arranged on the outer surface of the first end of the cylindrical structure (101);
-a tail end structure (102) comprising a first end and a second end, the second end face of the tail end structure (102) being provided with the mating hole (13) therethrough;
An elongated sleeve (103) having a through bore, including a first end and a second end;
In use, the second end of the cylinder structure (101) is in threaded fit connection with the first end of the extension sleeve (103), and the second end of the extension sleeve (103) is in threaded fit connection with the first end of the tail end structure (102).
9. The framework oil seal dismantling device as claimed in claim 8, wherein the number of the lengthening sleeves (103) is one or more;
When the number of the lengthening sleeves (103) is multiple, the lengthening sleeves (103) are sequentially connected in a threaded mode to form an integral structure, and two ends of the integral structure are respectively connected with the second end of the cylinder structure (101) and the first end of the tail end structure (102) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323190150.7U CN221291106U (en) | 2023-11-24 | 2023-11-24 | Framework oil seal dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323190150.7U CN221291106U (en) | 2023-11-24 | 2023-11-24 | Framework oil seal dismantling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221291106U true CN221291106U (en) | 2024-07-09 |
Family
ID=91748272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323190150.7U Active CN221291106U (en) | 2023-11-24 | 2023-11-24 | Framework oil seal dismantling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221291106U (en) |
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2023
- 2023-11-24 CN CN202323190150.7U patent/CN221291106U/en active Active
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