CN206738476U - Sealing device - Google Patents
Sealing device Download PDFInfo
- Publication number
- CN206738476U CN206738476U CN201720328321.3U CN201720328321U CN206738476U CN 206738476 U CN206738476 U CN 206738476U CN 201720328321 U CN201720328321 U CN 201720328321U CN 206738476 U CN206738476 U CN 206738476U
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- CN
- China
- Prior art keywords
- sealing device
- dust
- becket
- excluder lips
- axle
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a kind of sealing device that man-hour can be cut down when changing sealing device.Sealing device is arranged on the outer barrel of buffer and inserted between the axle of the inner circumferential for the bar guiding piece that its inner circumferential is set, it is characterized in that, sealing device sets anti-oil seal and dust seal respectively as individual components, anti- oil seal is arranged on the inner circumferential side of bar guiding piece, contacted in a manner of slidably with axle, dust seal is by the dust excluder lips that are contacted with axle, the becket of the dust excluder lips is kept to form, becket is by forming in the periphery side end of becket and the fitting portion chimeric with the end of outer barrel, form the inner peripheral side end portion in becket and cover the dust excluder lips covering part of dust excluder lips, and formed between fitting portion and dust excluder lips covering part and formed with the contact site of the atmospheric side end contact of bar guiding piece.
Description
Technical field
Sealing device is the utility model is related to, it relates in particular to by the anti-oil seal set respectively as individual components
The buffer sealing device that part and dust seal are formed.
Background technology
Currently, it is known to the buffer for being provided with sealing device 510 construction shown in Fig. 3.The buffer possesses and makes to be located at
Figure lower section piston (not shown) move axially in reciprocal fashion axle 560, be arranged concentrically at the axle 560 outer circumferential side outer barrel 540,
And the inner circumferential side of outer barrel 540 and the bar guiding piece 550 of leading axle 560 are fixed on, between outer barrel 540 and bar guiding piece 550
Sealing device 510 is installed.
The sealing device 510 includes：Becket 522 clamped by outer barrel 540 and bar guiding piece 550, by positioned at the metal
The inner circumferential side of ring 522 and sealing lip 531 and clamping becket 522 and the opposite side for being located at sealing lip 531 to oily side B extensions
And and vulcanization integrally formed to the dust excluder lips 521 of atmospheric side A extensions is bonded in the sealing 533 of becket 522 and is located at
The oily side B of the outer circumferential side of becket 522 and vulcanization are bonded in the periphery sealing lip 534 of becket 522.
Also, for the sealing device 510, in the inner circumferential side mounting rod guiding piece 550 and sealing device 510 of outer barrel 540
Afterwards, by making the end 542 radially inward bending (compression) of outer barrel 540 that sealing device 510 to be clamped in the end of outer barrel 540
So as to being fixed on buffer between portion 542 and bar guiding piece 550.
According to the sealing device 510 of said structure, sealing lip 531 is sealed inside buffer, also, dust excluder lips 521 prevent
Dust intrusion from atmospheric side A.Further, since the sealing device 510 is clamped in the end 542 of outer barrel 540 and bar guides
Between part 550, therefore it is firmly fixed at buffer.
Patent document 1：Japanese Unexamined Patent Publication 2007-298074
But the sealing device 510 with said structure needs to make when mounted the end 542 of outer barrel 540 to internal diameter side
It is fixed to bending.Therefore, when changing sealing device 510, it is necessary to which the outer barrel 540 of buffer is bent to the outer direction
Carry out removing seal 510, then, be arranged on by sealing device 510 behind the inner side of outer barrel 540, it is necessary to again by outer barrel 540
Bent along internal diameter direction, thus exist man-hour it is more the problem of.
Utility model content
The utility model is exactly in order to solve the above-mentioned technical problem to propose, its object is to provide one kind to cut down
The sealing device in man-hour during replacing sealing device.
As effective scheme for solving above-mentioned technical problem, sealing device of the present utility model is arranged on the outer barrel of buffer
Between axle, the inner circumferential for the bar guiding piece that the axle insert is set in the inner circumferential of the outer barrel, it is characterised in that the sealing dress
Put and individual components are provided with anti-oil seal and dust seal, the anti-oil seal guides installed in the bar
The inner circumferential side of part and contacted in a manner of slidably with the axle, the dust seal is by the dust excluder lips that are contacted with the axle
And keep the becket of the dust excluder lips to form, the becket by formed the periphery side end of the becket and with it is described
The chimeric fitting portion in the end of outer barrel, formed and covered in the inner peripheral side end portion of the becket and the dust excluder lips of the covering dust excluder lips
Cap and formation connect between the fitting portion and the dust excluder lips covering part and with the air side end face of the bar guiding piece
Tactile contact site is formed.
, only just can be by anti-oil seal, bar by dismantling dust seal according to the sealing device with said structure
These inner circumferential side part dismountings of guiding piece.Thereby, it is possible to cut down man-hour when sealing device is changed.
Brief description of the drawings
Fig. 1 is the sectional view of the sealing device involved by embodiment of the present utility model.
Fig. 2 is putting for the major part of the dust seal in the sealing device involved by embodiment of the present utility model
Big sectional view.
Fig. 3 is the half sectional view of the sealing device involved by prior art.
Symbol description
10 sealing devices
20 dust seals
21 dust excluder lips
22 beckets
23 dust excluder lips covering parts
24 fitting portions
24a cylindrical portions
24b flange parts
25 contact sites
25a rakes
25b end face portions
30 anti-oil seals
31 sealing lips
32 o-rings
40 outer barrels
41 outer peripheral faces
42 ends
50 bar guiding pieces
51 air side end faces
51a contact surfaces
The 51b conical surfaces
52 oily side end faces
The anti-oil seal mounting grooves of 52a
53 outer peripheral faces
53a o-ring mounting grooves
60 axles
A atmospheric sides
B oil side
Embodiment
Below, based on accompanying drawing, the sealing device 10 involved by embodiment of the present utility model is described in detail.Figure
1 is the sectional view of the sealing device 10 involved by embodiment of the present utility model, and Fig. 2 is embodiment institute of the present utility model
The amplification view of the major part of dust seal 20 in the sealing device 10 being related to.
As shown in figure 1, the sealing device 10 involved by present embodiment is installed on buffer.The buffer possesses and makes to be located at
Figure lower section piston (not shown) move axially in reciprocal fashion axle 60, be arranged concentrically at the axle 60 outer circumferential side outer barrel 40, with
And it is fixed on the inner circumferential side of outer barrel 40 and is used for the bar guiding piece 50 of leading axle 60.
Outer barrel 40 is the cylindrical body shaped by plate-shape metal, and has inserted axle 60 with one heart in inner circumferential side.
Bar guiding piece 50 possesses the air side end face 51 contacted with the becket of dust seal described below 20 22, used
In the installation oily side end face 52 of anti-oil seal 30 described below and the outer peripheral face 53 for the inner peripheral surface for being fixed on outer barrel 40.
The inner peripheral surface of outer peripheral face 53 and outer barrel 40 is in same heart shaped, recessed in axially midway, the radially inward of the outer peripheral face 53
Fall into the o-ring mounting groove 53a being provided with for installing o-ring 32 described below.
Possess in air side end face 51 along relative to axle 60 it is orthogonal direction extension and with sealing device 10 described below
Becket 22 contact contact surface 51a and from contact surface 51a to the inclined conical surface 51b of atmospheric side A.
For oily side end face 52, it is provided with its internal diameter direction end to the atmospheric side A depressions of axial direction behind for installing
The anti-oil seal mounting groove 52a of described anti-oil seal 30.
Also, the sealing device 10 is respectively using dust seal 20, anti-oil seal 30 and o-ring 32 as independent
Part is installed on buffer, wherein, dust seal 20 is fixed on the end 42 of outer barrel 40, and anti-oil seal 30 is anti-relative to this
Dirt seal 20 is positioned at the oily side B of axial direction, and in the anti-oil seal mounting groove 52a of bar guiding piece 50, o-ring 32 is located at
The centre of the dust seal 20 and anti-oil seal 30, in the o-ring mounting groove 53a of bar guiding piece 50.
Dust seal 20 as shown in Figure 1 and Figure 2, is made up of dust excluder lips 21 and becket 22, and dust excluder lips 21 are by rubber
Glue elastomer is formed, and prevents dust from invading oily side B from atmospheric side A by being contacted with the outer peripheral face of axle 60, becket 22 is used for
Keep the dust excluder lips 21.
The becket 22 is by being fixed on the fitting portion 24 of the end 42 of outer barrel 40, the air side end face 51 with bar guiding piece 50
The contact site 25 of contact and the dust excluder lips covering part 23 of covering dust excluder lips 21 are formed.
Fitting portion 24 is by the chimeric cylindrical portion 24a of the outer peripheral face 41 of the side of end 42 with outer barrel 40 and from the cylindrical portion
24a atmospheric side A end radially inward is bent and the flange part 24b chimeric with the end 42 of outer barrel 40 is formed.
Contact site 25 from flange part 24b internal diameter direction end to the inclined rake 25a of oily side B and from this from inclining
Inclined portion 25a internal diameter direction end is formed to the end face portion 25b that the direction orthogonal with axle 60 extends.By inclining for rake 25a
Rake angle is set as, also, end face portion 25b and bar guiding piece 50 identical with the conical surface 51b of bar guiding piece 50 angle of inclination
Contact surface 51a extends towards the direction orthogonal with axle 60.That is, becket 22 and bar guiding piece 50 in present embodiment are made
A part of corresponding shape each other.
Anti- oil seal 30 is made up of rubber elastomer, in the internal diameter direction end of the anti-oil seal 30 formed with sealing
Lip 31, sealing lip 31 contact in a manner of slidably with axle 60 so as to by oily side B oil seal.In addition, the anti-oil seal
30 can also be by oily side B oil seal in its outer peripheral face and atmospheric side A end face.
O-ring 32 is made up of the rounded rubber elastomer in section, and the o-ring 32 is sealed, so that oil will not pass through
Gap leakage between the inner peripheral surface of outer barrel 40 and the outer peripheral face 53 of bar guiding piece 50.
Below, illustrate for buffer installation, dismantle the step of sealing device 10 involved by present embodiment.First,
Bar guiding piece 50 of the installation equipped with anti-oil seal 30 and o-ring 32 between the inner peripheral surface of outer barrel 40 and the outer peripheral face of axle 60.
Then, the cylindrical portion 24a of the fitting portion 24 of dust seal 20 and flange part 24b are respectively installed to the outer peripheral face of outer barrel 40
41 and end 42.Thus, sealing device 10 is installed to buffer.In addition, from buffer removing seal 10 when, from outer
Dust seal 20 is dismantled in cylinder 40, then, the removal rod guiding piece 50 between the inner peripheral surface of outer barrel 40 and the outer peripheral face of axle 60.
In addition, by the way that sealing device 10 is installed into buffer, the rake 25a of the contact site 25 of dust seal 20 and
The conical surface 51b and contact surface 51a of air side end faces 51 of the end face portion 25b with being formed at bar guiding piece 50 are contacted.Accordingly, for anti-
Dirt seal 20, the fitting portion 24 positioned at its external diameter direction end are entrenched on outer barrel 40, also, the midway of radical length with
The part contact of the air side end face 51 of bar guiding piece 50, it is therefore, difficult at the dust excluder lips covering part 23 of covering dust excluder lips 21
To deviate.
As described above, the sealing device 10 according to involved by present embodiment, from buffer dismantle anti-oil seal 30,
During these inner circumferential side parts of bar guiding piece 50, only dust seal 20 need to be dismantled.Thus, when changing sealing device 10,
Outer barrel 40 need not be bent, man-hour during therefore, it is possible to cut down replacing.Particularly, in the dust intrusion from atmospheric side A such as desert
In the case that the more place of chance uses buffer, it is contemplated that frequently change the situation of dust seal 20 and useful.
In addition, the sealing device 10 according to involved by present embodiment, for dust seal 20, positioned at its external diameter direction
The fitting portion 24 of end is entrenched on outer barrel 40, and in the midway of radical length and the air side end face 51 1 of bar guiding piece 50
Part contacts, and therefore, is difficult to deviate at the dust excluder lips covering part 23 of covering dust excluder lips 21.Thereby, it is possible to will be dust-proof close
The dust excluder lips 21 of sealing 20 are positioned at the position for playing script function, and thereby, it is possible to the contact of continual and steady dust seal 20
State.
Claims (1)
1. a kind of sealing device, between the outer barrel and axle of buffer, the axle insert is set in the inner circumferential of the outer barrel
Bar guiding piece inner circumferential, it is characterised in that
The sealing device is provided with anti-oil seal and dust seal respectively as individual components,
The anti-oil seal is arranged on the inner circumferential side of the bar guiding piece, is contacted in a manner of slidably with the axle,
The dust seal by contacted with the axle dust excluder lips, keep the becket of the dust excluder lips to form,
The becket is by forming in the periphery side end of the becket and the fitting portion chimeric with the end of the outer barrel, shape
Into in the inner peripheral side end portion of the becket and the dust excluder lips covering part of the covering dust excluder lips and being formed in the fitting portion
Formed between the dust excluder lips covering part and with the contact site of the atmospheric side end contact of the bar guiding piece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-124372 | 2016-06-23 | ||
| JP2016124372A JP2017227279A (en) | 2016-06-23 | 2016-06-23 | Sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738476U true CN206738476U (en) | 2017-12-12 |
Family
ID=60559087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328321.3U Active CN206738476U (en) | 2016-06-23 | 2017-03-30 | Sealing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017227279A (en) |
| CN (1) | CN206738476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203425A (en) * | 2020-01-10 | 2020-05-29 | 泉州丰鹏环保科技有限公司 | Process and device for crushing and recovering alumina framework of waste FCC catalyst |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442089B (en) * | 2020-04-24 | 2021-10-29 | 江苏鹏飞集团股份有限公司 | Preheater push rod sealing device and preheater |
-
2016
- 2016-06-23 JP JP2016124372A patent/JP2017227279A/en active Pending
-
2017
- 2017-03-30 CN CN201720328321.3U patent/CN206738476U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203425A (en) * | 2020-01-10 | 2020-05-29 | 泉州丰鹏环保科技有限公司 | Process and device for crushing and recovering alumina framework of waste FCC catalyst |
| CN111203425B (en) * | 2020-01-10 | 2021-10-29 | 泉州丰鹏环保科技有限公司 | Process and device for crushing and recovering alumina framework of waste FCC catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017227279A (en) | 2017-12-28 |
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