CN219543045U

CN219543045U - Dismounting device of engine crankshaft oil seal

Info

Publication number: CN219543045U
Application number: CN202320147982.1U
Authority: CN
Inventors: 许新锐; 骆德亮; 李辉; 何仲能; 郭献军; 杨宗民; 董建; 钟彬平
Original assignee: Shenzhen Chengyuan Aviation Oil Co ltd
Current assignee: Shenzhen Chengyuan Aviation Oil Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-08-18
Anticipated expiration: 2033-01-13

Abstract

The utility model provides a dismounting device of an engine crankshaft oil seal, which comprises: the lifting assembly comprises a shaft rod and a mounting seat which are connected with each other, and two clamp parts are arranged on the mounting seat; the limiting assembly comprises an arc-shaped holding ring piece and an annular limiting piece, the annular limiting piece is sleeved on the lower portion of the arc-shaped holding ring piece, two connecting assemblies are arranged on the upper portion of the arc-shaped holding ring piece, and the two connecting assemblies are respectively connected with the two pliers. Through the mode, when the lifting assembly is used, force can be distributed on the limiting assembly and the oil seal body and is not concentrated at a certain concentration point, so that the oil seal is uniformly stressed when being lifted, deformation is not easy to occur, and the oil seal can be completely lifted out.

Description

Dismounting device of engine crankshaft oil seal

Technical Field

The utility model relates to the technical field of oil seal disassembly, in particular to a disassembly device for an engine crankshaft oil seal.

Background

The pipeline fuelling vehicle for large and medium-sized computer places in China is basically of the same model, for example, a fifty bell chassis is used, so that the rear oil seal of an engine crankshaft is of the same model, and a factory specially designs a special three-grab pulling horse for disassembling the oil seal.

The inventor of the utility model finds that in long-term research and development, the three-grab puller of the original factory has a complex structure, the grabbing force is concentrated at a plurality of stress points when the oil seal is disassembled, and the stress of the concentrated points is easy to pull the oil seal, so that the three-grab puller of the original factory has low operation and reliability.

Disclosure of Invention

The utility model provides a dismounting device for an engine crankshaft oil seal, which aims to solve the problem that the oil seal is easy to be pulled out due to stress of a concentration point when the oil seal is grabbed in the prior art.

In order to solve the technical problems, the utility model adopts a technical scheme that: provided is a dismounting device for an engine crankshaft oil seal, wherein the device comprises:

the lifting assembly comprises a shaft rod and an installation seat which are connected with each other, and two clamp parts are arranged on the installation seat;

the limiting assembly comprises an arc-shaped holding ring piece and an annular limiting piece, wherein the annular limiting piece is sleeved on the lower portion of the arc-shaped holding ring piece, two connecting assemblies are arranged on the upper portion of the arc-shaped holding ring piece, and the two connecting assemblies are respectively connected with the two pliers.

The beneficial effects of the utility model are as follows: the utility model provides a dismounting device for an engine crankshaft oil seal, which is different from the prior art, and comprises: the lifting assembly comprises a shaft rod and a mounting seat which are connected with each other, and two clamp parts are arranged on the mounting seat; the limiting assembly comprises an arc-shaped holding ring piece and an annular limiting piece, the annular limiting piece is sleeved on the lower portion of the arc-shaped holding ring piece, two connecting assemblies are arranged on the upper portion of the arc-shaped holding ring piece, and the two connecting assemblies are respectively connected with the two pliers. Through establishing the arc embracing circle piece cover on engine crank axle oil seal, locate the lower part of arc embracing circle piece with annular spacing piece cover for be connected between spacing subassembly and the oil blanket, will carry the axostylus axostyle and the oil blanket of drawing the subassembly to be connected, the mount pad is connected with coupling assembling, makes carry and draws the subassembly and all produce with spacing subassembly and oil blanket body and be connected, when carrying the subassembly like this, the power can be distributed on spacing subassembly and oil blanket body, and not concentrate on a centralized point, the oil blanket atress is even when carrying the drawing like this, be difficult to produce the deformation, has solved the problem that makes the oil blanket be pulled out easily because centralized point atress when snatching the oil blanket among the prior art.

Drawings

For a clearer description of the technical solutions in the embodiments of the application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the application, from which, without inventive effort, further drawings can be obtained for a person skilled in the art, in which:

fig. 1 is an exploded view of an embodiment of a disassembling device for an engine crankshaft oil seal according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, fig. 1 is an exploded view of an embodiment of a disassembling device for an engine crankshaft oil seal according to the present utility model. The device 100 disclosed in this embodiment includes a pull assembly 10 and a stop assembly 20.

Specifically, the pull assembly 10 includes a shaft 11 and a mount 12 that are connected to each other, and two jaws 13 are provided on the mount 12. The limiting assembly 20 comprises an arc-shaped holding ring piece 21 and an annular limiting piece 22, the annular limiting piece 22 is sleeved on the lower portion of the arc-shaped holding ring piece 21, two connecting assemblies 23 are arranged on the upper portion of the arc-shaped holding ring piece 21, and the two connecting assemblies 23 are respectively connected with the two clamp portions 13. The arc-shaped ring holding piece 21 is sleeved on an engine crankshaft oil seal, the annular limiting piece 22 is sleeved on the lower portion of the arc-shaped ring holding piece 21, the limiting assembly 20 is connected with the oil seal, and the two connecting assemblies 23 are respectively connected with the two clamp parts 13, so that the lifting assembly 10 and the limiting assembly 20 are connected.

In one embodiment, the mounting base 12 is in a strip shape, a hole 14 is formed in the middle of the mounting base 12, and the shaft 11 is inserted into the hole 14. The two pliers parts 13 are symmetrically arranged at two sides of the hole 14. The length of the mounting seat 12 is larger than or equal to the diameter of the arc-shaped embracing ring piece 21, and the two connecting components 23 are connected with the two clamp parts 13 without falling off.

In one embodiment, the shaft 11 is provided with external threads, and the bore 14 is provided with internal threads that mate with the shaft 11.

In one embodiment, the mounting base 12 includes an annular boss 15, and the annular boss 15 is disposed outside the hole 14.

In a specific embodiment, the arc-shaped ring member 21 is in a major arc shape with an opening 24 at one end, for example, may be C-shaped in this embodiment, a triangular notch 25 is disposed on the arc-shaped ring member 21 opposite to the opening 24, and the triangular notch 25 is disposed at the lower portion of the arc-shaped ring member 21. When the arc-shaped ring holding piece 21 is sleeved on the oil seal, the opening 24 and the triangular notch 25 can enable the arc-shaped ring holding piece 21 to generate proper deformation, and the arc-shaped ring holding piece 21 can be sleeved on the oil seal more easily and more in a fitting manner.

In a specific embodiment, the connecting assembly 23 includes a screw 26 and a nut 27, the lower portion of the screw 26 is disposed on the inner side wall of the arc-shaped ring member 21, the middle portion of the screw 26 is clamped in the clamping portion 13, and the upper portion of the screw 26 is connected with the nut 27. The lower part of the screw rod 26 can be fixed on the inner side wall of the arc-shaped holding ring piece 21 in a welding mode, when the connecting component 23 is connected with the clamp part 13, the nut 27 and the screw rod 26 are separated, the middle part of the screw rod 26 is arranged in the clamp part 13, the mounting seat 12 is arranged on the arc-shaped holding ring piece 21, and then the nut 27 is arranged on the upper part of the screw rod 26, so that the mounting seat 12 and the arc-shaped holding ring piece 21 can be tightly connected together.

In one embodiment, the screws 26 of the two connection assemblies 23 are symmetrically arranged. The oil seal is more uniform in stress and not easy to damage due to the arrangement.

In one embodiment, the diameter of the circle in which the upper portion of the arcuate band 21 is located gradually increases along the diameter of the circle in which the lower portion is located. When the oil seal is sleeved, the oil seal can be more convenient.

The dismounting device 100 provided by the utility model has a simpler structure and is convenient to operate, the principle still adopts a puller structure, but a C-ring hoop is creatively used for replacing a grapple, so that the puller can tightly clamp an oil seal, and meanwhile, the oil seal cannot be pulled out due to stress of a concentrated point, so that the oil seal has the possibility of repeated use.

The utility model provides a dismounting device 100 of an engine crankshaft oil seal, comprising: the lifting assembly 10 comprises a shaft rod 11 and a mounting seat 12 which are connected with each other, and two clamp parts 13 are arranged on the mounting seat 12. The limiting assembly 20 comprises an arc-shaped holding ring piece 21 and an annular limiting piece 22, the annular limiting piece 22 is sleeved on the lower portion of the arc-shaped holding ring piece 21, two connecting assemblies 23 are arranged on the upper portion of the arc-shaped holding ring piece 21, and the two connecting assemblies 23 are respectively connected with the two clamp portions 13. Through establishing arc embracing circle 21 cover on engine crank axle oil seal, locate the lower part of arc embracing circle 21 with annular spacing piece 22 cover for be connected between spacing subassembly 20 and the oil blanket, with the axostylus axostyle 11 and the oil blanket connection of carrying the subassembly 10, mount pad 12 is connected with coupling assembling 23, make carrying the subassembly 10 and all produce with spacing subassembly 20 and oil blanket body and be connected, when carrying the subassembly 10 like this, the power can distribute on spacing subassembly 20 and oil blanket body, and not concentrate on a centralized point, the oil blanket atress is even when carrying like this, be difficult to produce the deformation, can be complete carry out the oil blanket.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the utility model.

Claims

1. A dismounting device for an engine crankshaft oil seal, the device comprising:

2. The device according to claim 1, wherein the mounting seat is in a strip shape, a hole is formed in the middle of the mounting seat, and the shaft rod is arranged in the hole in a penetrating manner; the two pliers parts are symmetrically arranged at two sides of the hole.

3. The device of claim 2, wherein the shaft has external threads and the bore has internal threads that mate with the shaft.

4. The device of claim 2, wherein the mount comprises an annular boss disposed outside of the aperture.

5. The device according to claim 1, wherein the arc-shaped ring member is in a major arc shape with one end open, a triangular notch is arranged on the arc-shaped ring member opposite to the opening, and the triangular notch is arranged at the lower part of the arc-shaped ring member.

6. The device of claim 5, wherein the connecting assembly comprises a screw and a nut, the lower portion of the screw is arranged on the inner side wall of the arc-shaped ring holding piece, the middle portion of the screw is clamped in the clamping portion, and the upper portion of the screw is connected with the nut.

7. The device of claim 6, wherein the screws of both of the connection assemblies are symmetrically disposed.

8. The device of claim 1, wherein the diameter of the circle in which the upper portion of the arcuate band is located increases gradually along the diameter of the circle in which the lower portion is located.