CN217861040U - Assembly fixture of sealing member - Google Patents

Abstract

The utility model relates to the field of machinary, especially an assembly fixture of sealing member, including barrel and engagement structure, set up the direction passageway that the moving part that supplies the gearbox installed the sealing member passes through on the barrel, simultaneously, in the biggest external diameter of barrel slightly was less than the internal diameter in the passageway in the casing of gearbox so that the barrel can get into the casing of gearbox, engagement structure formed the outer wall of barrel, engagement structure matches with the step shape of the interior reducing department of casing of gearbox in order to make and get into the casing the assembly passageway seamless butt joint of moving part in direction passageway and the gearbox of barrel. The technical problem that in the prior art, a sealing element is easy to damage or turn over during the assembling process of the gearbox is solved.

Description

Assembly fixture of sealing member

Technical Field

The utility model relates to the field of machinary, especially an assembly fixture of sealing member.

Background

The assembly tool is invented in order to ensure that a hydraulic system of the gearbox is more reliable, wherein a sealing element plays a vital role, and in order to prevent the sealing element from being damaged in the installation process and from being turned over to cause internal leakage after installation.

Disclosure of Invention

In order to solve among the prior art fragile or turn-ups technical problem of sealing member in the assembling process of gearbox, the utility model provides an assembly fixture of sealing member has solved above-mentioned technical problem.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an assembly fixture of sealing member for the assembly of gearbox, include: the device comprises a cylinder body, a first sealing element and a second sealing element, wherein a guide channel for a movable part of the gearbox to pass through is formed in the cylinder body, and the maximum outer diameter of the cylinder body is slightly smaller than the inner diameter of a passageway in a shell of the gearbox so that the cylinder body can enter the shell of the gearbox; the fitting structure is formed on the outer wall surface of the cylinder body and matched with the step shape at the reducing position in the shell of the gearbox so that a guide channel of the cylinder body entering the shell is in seamless butt joint with an assembly channel of a movable piece in the gearbox.

The application provides an assembly fixture of sealing member, can be used to auxiliary seal's installation, during the assembly, put into the casing of gearbox with the barrel earlier, level up the step of reducing department in the casing, make the guide way and the seamless butt joint of assembly passageway of barrel, the piston that has the sealing member this moment gets into the assembly passageway with the help of guide way smoothly, the sealing member arrives existing position after, take out the barrel from the casing of gearbox in and accomplish whole assembly flow, with the aid of the assembly fixture of the sealing member that this application provided, the sealing member can avoid with the gearbox in the step contact of reducing department, thereby avoid the appearance of the condition of having been turned over when the sealing member is destroyed or gets into the assembly passageway.

Further, the guide channel includes a narrowing section that narrows toward the assembly channel and a vertical section proximate the assembly channel.

The guide channel comprises a narrowing section gradually narrowing towards the assembly channel and a vertical section close to the assembly channel, the narrowing section of the guide channel is designed into a conical shape with the upper part being wide and the lower part being narrow so as to facilitate the moving part with the sealing element to enter the cylinder body, and the inner diameter of the vertical section of the guide channel is the same as that of the assembly channel so as to prepare for the moving part to enter the assembly channel.

Further, the inner wall surface of the guide passage is smooth in texture.

The inner wall surface of the guide passage is smooth in texture to better protect the sealing member.

Furthermore, the fitting structure comprises a supporting part, and the supporting part is limited by a step at the reducing part in the shell.

Further, the cylinder is made of a metal material.

Based on the technical scheme, the utility model discloses the technological effect that can realize does:

the application provides an assembly fixture of sealing member, can be used to auxiliary seal's installation, during the assembly, put into the casing of gearbox with the barrel earlier, level up the step of reducing department in the casing, make the guide way and the seamless butt joint of assembly passageway of barrel, the piston that has the sealing member this moment gets into the assembly passageway with the help of guide way smoothly, the sealing member arrives existing position after, take out the barrel from the casing of gearbox in and accomplish whole assembly flow, with the aid of the assembly fixture of the sealing member that this application provided, the sealing member can avoid with the gearbox in the step contact of reducing department, thereby avoid the appearance of the condition of having been turned over when the sealing member is destroyed or gets into the assembly passageway.

The application provides a direction passageway of assembly fixture of sealing member includes the vertical section of narrowing gradually towards the assembly passageway and pressing close to assembly passageway department, is about to the narrowing section design of direction passageway into about wide narrow conical shape in order to make things convenient for the entering barrel of the moving part that has the sealing member, and the internal diameter of the vertical section of direction passageway is the same with the internal diameter of assembly passageway and prepares for the moving part gets into the assembly passageway.

Drawings

Fig. 1 is a schematic structural view of a movable member in an application scenario of the present invention;

fig. 2 is a schematic structural view of the assembly tool for the sealing member of the present invention;

fig. 3 is a schematic view of a housing of the transmission in an application scenario of the present invention.

Wherein: 1-moving part, 11-sealing part; 2-cylinder, 21-guide channel, 211-narrowing section, 212-vertical section, 22-fitting structure and 23-support section; 3-shell, 31-aisle, 32-step, 33-assembly channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 and 3, the transmission case to which the present application is directed includes a housing 3 and a movable member 1 assembled into the housing 3, the movable member 1 is a piston in the present application, a sealing member 11 is first installed on the piston, the sealing member 11 protrudes out of an outer peripheral surface of the piston, when the piston is assembled into the housing 3, the piston first passes through a passageway 31 with a large radial space, then the piston is assembled into an assembly passage 33, and the sealing member 11 is attached to an inner wall surface of the assembly passage 33 after the assembly. During the assembly process, mainly when the piston transitions from the passage 31 to the assembly passage 33, the sealing element 11 protruding from the outer peripheral surface of the piston may hit the step 32 in the housing 3, i.e. the step 32 at the transition between the passage 31 and the assembly passage 33, so that the sealing element 11 is damaged or the sealing element 11 assembled into the assembly passage 33 is in a folded state, and the sealing element 11 cannot achieve a predetermined sealing effect.

Aiming at the condition that the sealing element 11 is easy to be damaged or folded in the assembling process, as shown in figures 1-3, the application provides an assembling tool for the sealing element, which is used for assembling a gearbox and comprises a cylinder body 2 and a fitting structure 22 formed on the outer wall surface of the cylinder body 2, wherein the cylinder body 2 is provided with a moving element 1 for the gearbox, the moving element 1 is provided with the sealing element 11, namely a guide channel 21 through which a piston passes, meanwhile, the maximum outer diameter of the cylinder body 2 is slightly smaller than the inner diameter of a passageway 31 in the shell 3 of the gearbox so that the cylinder body 2 can enter the shell 3 of the gearbox, and the fitting structure 22 is matched with a step 32 at the reducing part in the shell 3 of the gearbox in shape so as to enable the guide channel 21 of the cylinder body 2 entering the shell 3 to be in seamless butt joint with an assembling channel 33 of the moving element 1 in the gearbox.

The application provides an assembly fixture of sealing member, can be used to the installation of auxiliary seal 11, during the assembly, earlier put into the casing 3 of gearbox with barrel 2, fill up the step 32 of reducing department in the casing 3, make the guide channel 21 and the assembly channel 33 seamless butt joint of barrel 2, the piston that has sealing member 11 this moment gets into assembly channel 33 with the help of guide channel 21 smoothly, after sealing member 11 arrived existing position, take out barrel 2 from the casing 3 of gearbox again and accomplish whole assembly process, with the help of the assembly fixture of sealing member that this application provided, sealing member 11 can avoid with the gearbox in the step 32 contact of reducing department, thereby avoid sealing member 11 to be destroyed or the appearance of the condition of having been turned over when getting into assembly channel 33.

In a specific embodiment of the present invention, the guiding channel 21 includes a narrowing section 211 gradually narrowing toward the assembling channel 33 and a vertical section 212 close to the assembling channel 33, the narrowing section 211 of the guiding channel 21 is designed to be a conical shape with a wide upper part and a narrow lower part so as to facilitate the entering of the moving part 1 with the sealing member 11, and the inner diameter of the vertical section 212 of the guiding channel 21 is the same as the inner diameter of the assembling channel 33 so as to prepare for the moving part 1 to enter the assembling channel 33.

In one embodiment of the present invention, the inner wall surface of the guide channel 21 is smooth to better protect the sealing member 11.

In a specific embodiment of the present invention, the fitting structure 22 includes a supporting portion 23, and the supporting portion 23 is limited by the step 32 at the reducing position in the housing 3, so as to realize the positioning of the cylinder 2 in the housing 3.

In a specific embodiment of the present invention, the barrel 2 is made of a metal material, so that the manufacturing is convenient and the cost is low.

It should be understood that the above description of the specific embodiments is only for the purpose of explanation and not for the purpose of limitation. Obvious changes or variations from the spirit of the invention are within the scope of the invention.

Claims (5)

1. The utility model provides an assembly fixture of sealing member for the assembly of gearbox, its characterized in that includes:

the automatic transmission comprises a cylinder body (2), wherein a guide channel (21) for a movable piece (1) of the transmission, which is provided with a sealing piece (11), to pass through is formed in the cylinder body (2), and meanwhile, the maximum outer diameter of the cylinder body (2) is slightly smaller than the inner diameter of a passageway (31) in a shell (3) of the transmission so that the cylinder body (2) can enter the shell (3) of the transmission;

the fitting structure (22) is formed on the outer wall surface of the cylinder body (2), and the fitting structure (22) is matched with a step (32) at the inner diameter-changing position of a shell (3) of the gearbox in shape, so that a guide channel (21) of the cylinder body (2) entering the shell (3) is in seamless butt joint with an assembly channel (33) of a movable piece (1) in the gearbox.

2. The seal assembly tooling of claim 1, wherein the guide channel (21) comprises a narrowing section (211) that gradually narrows towards the assembly channel (33) and a vertical section (212) proximate to the assembly channel (33).

3. The seal assembly tooling of claim 1, wherein the inner wall surface of the guide channel (21) is smooth.

4. The assembling tool for the sealing element according to claim 1, wherein the fitting structure (22) comprises a supporting portion (23), and the supporting portion (23) is limited by a step (32) at a reducing position in the shell (3).

5. The seal assembly tooling of claim 1, wherein the cylinder (2) is made of a metal material.

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