CN218018308U

CN218018308U - Oil seal press fitting and differential mechanism

Info

Publication number: CN218018308U
Application number: CN202222598600.5U
Authority: CN
Inventors: 刘进兵; 田旭; 朱臻杰; 王成志; 张作光
Original assignee: Beijing Hainachuan Auto Chassis System Co ltd
Current assignee: Beijing Hainachuan Auto Chassis System Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-13
Anticipated expiration: 2032-09-29

Abstract

The utility model provides an oil blanket pressure equipment, including oil blanket body and auxiliary fixtures, auxiliary fixtures includes first body and second body, first body with second body detachable connects, the oil blanket body is placed on the first body, will the second body with first body fixed connection, so that oil blanket body holding is in first body with in the accommodation space that the second body formed, thereby realize oil blanket body pressure equipment is in the auxiliary fixtures. A differential is also disclosed. The embodiment of the utility model provides an in through setting up auxiliary fixtures into detachable first body and second body, first body and second body are pegged graft fixedly to make the oil blanket body fix fast in the accommodation space that first body and second body formed, with the oil blanket body that adapts to not unidimensional, guarantee that oil blanket body pressure equipment in-process atress is even, avoid appearing damaged problem after the pressure equipment.

Description

Oil seal press fitting and differential mechanism

Technical Field

The utility model relates to an oil blanket frock field, in particular to oil blanket pressure equipment and differential mechanism.

Background

Oil seals are a common term for seals, simply the seal of lubricating oil. An oil seal is a mechanical element used to seal oil (oil is the most common liquid substance in a transmission system and also generally refers to a liquid substance), which isolates parts requiring lubrication from a power output part in a transmission part so as not to allow the lubricating oil to leak. The bearing is commonly used for various machines, in particular to a rolling bearing.

Oil seals are generally classified into single-lip oil seals and double-lip oil seals, and the single-lip oil seals have only one oil seal port for sealing oil. The single-lip framework oil seal is only provided with a single sealing lip and is mainly used in environments with little dust and impurities, such as indoors or in an oil tank. For example, the single-lip A-type PTFE oil seal and the Teflon single-seal lip have small frictional resistance and are widely applied to various applications such as windmills, pumps, compressors, gear boxes, engine crankshafts and the like. The double-lip oil seal is provided with two lips, the inner lip is used for sealing oil, and the outer lip is dustproof. The double-lip framework oil seal is a seal and dust-proof lip, can be used in a working environment with dust and impurities, and can prevent the dust and the impurities from entering the cavity so as to avoid damaging the seal lip and enable the seal lip to lose the sealing effect. For example, the PTFE B type oil seal and the full Teflon double-seal lip are suitable for high pressure of 30bar, have good filling rate and good wear resistance and corrosion resistance, and are widely applied to oil pressure motors, hydraulic oil pressure elements and the like.

Double-lip oil seals are commonly used in prior art automotive differentials for dust and sealing. However, after the double-lip oil seal is pressed, a plurality of problems exist: more adhesive tapes are extruded outwards, which influences the sealing performance of the oil seal and damages the excircle of the oil seal; the oil seal is not placed at a right position, and the oil seal is inclined after being pressed in; after press fitting of individual oil seals, the oil seals cannot be completely placed into the tool due to dust, and the oil seals are damaged after press fitting.

Therefore, it is necessary to design a differential oil seal press-fitting device to solve the problem that the oil seal is inclined or damaged after being pressed in the pressing-in process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a differential mechanism oil blanket pressure equipment guarantees that oil blanket pressure equipment in-process atress is even, no longer has the slope phenomenon after impressing, guarantees oil blanket integrality, avoids appearing the damaged problem of dirt seal.

In order to achieve the purpose, the embodiment of the utility model provides an oil blanket pressure equipment, including oil blanket body and auxiliary fixtures, auxiliary fixtures includes first body and second body, first body with second body detachable connects, the oil blanket body is placed on the first body, will the second body with first body fixed connection makes oil blanket body holding is in first body with in the accommodation space that the second body formed, thereby so that oil blanket body pressure equipment is in the auxiliary fixtures.

As the utility model provides a preferred embodiment, be provided with the fixed part on the first body, be provided with cooperation portion on the second body, the fixed part with cooperation portion grafting is fixed, so that the first body with second body fixed connection.

As the utility model provides a preferred embodiment, be provided with magnetism portion of inhaling on the first body, be provided with the absorption portion on the second body, magnetism portion of inhaling and absorption portion adsorb so that first body with second body fixed connection.

As the utility model provides a preferred embodiment, the fixed part includes the locating hole, cooperation portion includes the shop bolt, the shop bolt with the locating hole is pegged graft fixedly.

As the utility model provides a preferred embodiment, the locating hole sets up on the lateral wall of first body, the dowel sets up on the lateral wall of second body, first body with the second body sets up relatively, so that the locating hole that sets up on the first body with the dowel grafting that sets up on the second body is fixed.

As the utility model provides a preferred embodiment, first body with the accommodation space that the second body formed is the storage tank, be provided with the installation department on the oil blanket body, the installation department with the storage tank joint is fixed.

As the utility model provides a preferred embodiment, the cell body lateral wall of storage tank sets up to the inclined plane.

As the preferred embodiment provided by the utility model, the value range of the contained angle that the inclined plane and the bottom surface of cell body side wall formed is 0 ~ 90.

As the utility model provides a preferred embodiment, the accommodation space is circular cell body, first body with the central symmetry setting of second body with the accommodation space.

The utility model also provides a differential mechanism, include as above the oil blanket pressure equipment.

One of the above technical solutions has the following advantages or beneficial effects:

the embodiment of the utility model provides an in through setting up auxiliary fixtures into detachable first body and second body, first body and second body are pegged graft fixedly to make the oil blanket body fix fast in the accommodation space that first body and second body formed, with the oil blanket body that adapts to not unidimensional, guarantee that oil blanket body pressure equipment in-process atress is even, avoid appearing damaged problem after the pressure equipment.

Drawings

Fig. 1 is a schematic structural diagram of press fitting of an oil seal according to an embodiment of the present invention;

fig. 2 is a schematic view of a part of the structure of the oil seal press-fitting provided by the embodiment of the present invention;

fig. 3 is a first schematic structural diagram of an auxiliary tool for press fitting an oil seal according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second auxiliary tool for press fitting of an oil seal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an oil seal body for press fitting of an oil seal provided by the embodiment of the utility model.

The reference numbers in the figures illustrate:

1. auxiliary tools; 11. a first body; 111. positioning holes; 112. a first notch; 113. mounting grooves; 12. a second body; 121. a second notch; 13. positioning a pin; 2. an oil seal body; 21. an installation part.

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 some, not all, of the embodiments of the present invention. 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.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, the embodiment of the utility model provides an oil blanket pressure equipment, including oil blanket body 2 and auxiliary fixtures 1, fix oil blanket body 2 in auxiliary fixtures 1 usually to make the oil blanket pressure equipment and the differential mechanism that oil blanket body 2 and auxiliary fixtures 1 formed assemble. Because in actual use, in order to adapt to the 2 dust covers of the oil blanket body of different sizes, improve the size of oil blanket body 2 usually, but oil blanket body 2 after the improvement can't use oil blanket pressure equipment frock. Therefore, through using the utility model provides an auxiliary fixtures 1 can fix not unidimensional oil blanket body 2 in auxiliary fixtures 1 to make oil blanket pressure equipment frock can continue to use.

Further, the utility model provides an oil blanket pressure equipment includes first body 11 and second body 12, first body 11 and the 12 detachable connections of second body, so that first body 11 and second body 12 are formed with the accommodation space, 2 holding of oil blanket body are in the accommodation space of first body 11 and the 12 formation of second body, so that with the holding that oil blanket body 2 can be quick in the accommodation space, avoid being not convenient for assemble in the accommodation space that forms 2 holding of oil blanket body wholly, and very easily damage oil blanket body 2. Therefore, the utility model provides an oil blanket pressure equipment is with the fixed back of part oil blanket body 2 and first body 11, again with second body 12 and first body 11 fixed to make the holding of oil blanket body 2 in the accommodation space of first body 11 and the formation of second body 12.

As shown in fig. 2 to 4, the first body 11 is provided with a positioning hole 111, the second body 12 is provided with a positioning pin 13, and the positioning pin 13 is inserted into and fixed with the positioning hole 111, so that the first body 11 and the second body 12 are fixedly connected. Specifically, the end surface of the first body 11 and the end surface of the second body 12 are correspondingly disposed, so that after the end surface of the first body 11 and the end surface of the second body 12 are aligned, the bottom surface of the accommodating space formed by the first body 11 and the second body 12 is a plane. Therefore, the positioning hole 111 is provided at the end face of the first body 11, and the positioning pin 13 is provided at the end face of the second body 12. As a preferred embodiment, the positioning hole 111 is a blind hole, the positioning pin 13 extends out of the second end surface, and the depth of the blind hole corresponds to the length of the positioning pin 13, so that after the positioning pin 13 is inserted into the positioning hole 111, the end surface of the first body 11 contacts with the end surface of the second body 12, thereby realizing the fixed connection between the first body 11 and the second body 12. The utility model discloses a concatenation precision and the bulk strength of auxiliary fixtures 1 are guaranteed to the mounting means of locating pin fixed and locating hole 111, reduce the design and the preparation degree of difficulty, and preparation locating hole 111 is cut apart with the wire-electrode cutting after the integral processing is accomplished, guarantees frock locating hole 111 positioning accuracy.

As a preferred embodiment, the number of the positioning holes 111 may be two or more, as long as the insertion fixing of the first body 11 and the second body 12 can be achieved, and it is understood that the number of the positioning holes 111 and the number of the positioning pins 13 are the same, so that one positioning hole 111 and one positioning pin 13 are inserted and fixed.

Of course, it is understood that the fixing manner of the first body 11 and the second body 12 may be provided as various fixing structures as long as the first body 11 and the second body 12 can be fixed. For example, a magnetic portion is disposed on an end surface of the first body 11, an absorption portion is disposed on an end surface of the second body 12, and the magnetic portion and the absorption portion are correspondingly disposed, so that when the end surfaces of the first body 11 and the second body 12 are opposite, the magnetic portion and the absorption portion absorb each other, thereby realizing the fixed connection between the first body 11 and the second body 12.

The fixing manner of the first body 11 and the second body 12 provided in the above embodiment may also be configured as clamping and fixing of the first body 11 and the second body 12, and the specific structure is not described again.

As shown in fig. 5, the oil seal body 2 includes a mounting portion 21, and the mounting portion 21 is matched with an accommodating space formed by the first body 11 and the second body 12, so that the oil seal body 2 is fixed in the auxiliary tool 1.

As a preferred embodiment, the oil seal body 2 is a double-auxiliary-lip oil seal, and it is understood that the oil seal body 2 may also be an oil seal body 2 with other structures, and the oil seal body 2 is set according to the specific installation position of the oil seal tool.

Further, the present invention provides a double minor lip oil seal, the cross-sectional area of the specific structure of the mounting portion 21 is set to be circular, of course, it can be understood that the specific structure of the mounting portion 21 can also be set to be other shapes, and only circular is explained as a preferred embodiment.

Further, the accommodating space formed by the first body 11 and the second body 12 is also provided in a circular structure according to the specific shape and structure of the mounting portion 21. Specifically, the accommodating space is a circular accommodating groove, so that the mounting portion 21 is clamped with the accommodating groove, and the mounting portion 21 is fixed in the accommodating groove.

As a preferred embodiment, the area of the circle formed by the cross section of the mounting portion 21 is gradually increased, and thus the area of the circle formed by the cross section of the groove formed by the accommodating groove is gradually decreased, so that the mounting portion 21 and the accommodating groove are just in snap fit.

Further, the first body 11 and the second body 12 are symmetrically disposed about the central axis of the receiving groove, so that the shape and structure of the first body 11 and the second body 12 are substantially the same, and thus the first body 11 and the second body 12 are inserted and fixed to form a circular receiving groove.

Specifically, the side wall of the tank body of the accommodating groove is an inclined plane, and the included angle formed between the inclined plane and the bottom surface of the side wall of the tank body ranges from 0 degree to 90 degrees.

Further, a first notch 112 is formed in the first body 11, a second notch 121 is formed in the second body 12, and the first notch 112 and the second notch 121 form a circle.

The utility model provides an oil blanket frock still, oil blanket body 2 adopts the press equipment after putting into, leans on the frock dabber to fix a position the pressure equipment frock, and the frock inner wall is spacing to oil blanket body 2, and the dabber end carries out the pressure equipment in the face of 2 strengthening rib terminal surface positions of oil blanket body, leans on 2 impressed positions of frock design stroke control oil blanket body, guarantees the pressure equipment position and the atress homogeneity of oil blanket body 2.

The utility model provides a concrete work flow of oil blanket frock does: place oil blanket body 2 on auxiliary fixtures 1 positioning fixture, put the oil blanket in the auxiliary positioning fixture, close auxiliary fixtures 1, the middle gap be less than 2mm can, then put into pressure equipment frock with auxiliary fixtures 1, put into and push away motionless, put the frock on oil blanket body 2, insert the frock in locating hole 111, make the terminal surface locating surface contact oil blanket body 2 can, start-up press carries out the pressure equipment, take off pressure equipment frock and oil blanket body 2, take out auxiliary fixtures 1 in the frock.

The utility model also provides a differential mechanism, including above the oil blanket frock.

The embodiment of the utility model provides an in through setting up auxiliary fixtures 1 into detachable first body 11 and second body 12, first body 11 and second body 12 are pegged graft fixedly to make oil blanket body 2 fix fast in the accommodation space that first body 11 and second body 12 formed, with adapt to unidimensional oil blanket body 2, guarantee that 2 pressure equipment in-process atress of oil blanket body are even, avoid appearing damaged problem behind the pressure equipment. Through the quick location of first body 11 and second body 12, the structure is reliable for the atress is even after oil blanket body 2 pressurized, reduces oil blanket clamping pressure equipment and warp, guarantees the location axiality, and with oil blanket body 2 and the even laminating of holding portion, the damage of no longer inclining after the pressure equipment.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an oil blanket pressure equipment which characterized in that: the oil seal device comprises an oil seal body and an auxiliary tool, wherein the auxiliary tool comprises a first body and a second body, the first body is detachably connected with the second body, the oil seal body is placed on the first body, and the second body is fixedly connected with the first body, so that the oil seal body is accommodated in an accommodating space formed by the first body and the second body, and the oil seal body is pressed in the auxiliary tool.

2. An oil seal press-fitting according to claim 1, wherein: the first body is provided with a fixing part, the second body is provided with a matching part, and the fixing part and the matching part are fixedly connected in an inserting mode, so that the first body is fixedly connected with the second body.

3. An oil seal press-fitting according to claim 1, wherein: the first body is provided with a magnetic part, the second body is provided with an adsorption part, and the magnetic part and the adsorption part are adsorbed to fixedly connect the first body and the second body.

4. An oil seal press-fitting according to claim 2, wherein: the fixing part comprises a positioning hole, the matching part comprises a positioning pin, and the positioning pin is fixedly inserted into the positioning hole.

5. An oil seal press fitting according to claim 4, wherein: the positioning holes are formed in the side wall of the first body, the positioning pins are arranged on the side wall of the second body, and the first body and the second body are arranged oppositely, so that the positioning holes formed in the first body and the positioning pins formed in the second body are fixedly inserted.

6. An oil seal press-fitting according to any one of claims 1, 3 or 5, characterized in that: the oil seal comprises an oil seal body and is characterized in that the first body and the accommodating space formed by the second body are accommodating grooves, installation parts are arranged on the oil seal body, and the installation parts are fixedly connected with the accommodating grooves in a clamped mode.

7. An oil seal press-fitting according to claim 6, wherein: the side wall of the groove body of the accommodating groove is an inclined plane.

8. An oil seal press fitting according to claim 7, wherein: the included angle formed by the inclined plane and the bottom surface of the side wall of the tank body ranges from 0 degree to 90 degrees.

9. An oil seal press fitting according to any one of claims 1 to 4 or 8, wherein: the accommodating space is a circular groove body, and the first body and the second body are symmetrically arranged with the center of the accommodating space.

10. A differential, characterized by: comprising an oil seal press fitting as claimed in claim 1.