CN204372178U - A kind of oil sealing with double-layer sealing structure - Google Patents
A kind of oil sealing with double-layer sealing structure Download PDFInfo
- Publication number
- CN204372178U CN204372178U CN201420865533.1U CN201420865533U CN204372178U CN 204372178 U CN204372178 U CN 204372178U CN 201420865533 U CN201420865533 U CN 201420865533U CN 204372178 U CN204372178 U CN 204372178U
- Authority
- CN
- China
- Prior art keywords
- restraint assembly
- black box
- sealing
- restraint
- toroidal shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 77
- 239000000314 lubricant Substances 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 33
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a kind of oil sealing with double-layer sealing structure, comprise toroidal shell, first black box, second black box, first sealing lip and the second sealing lip, first black box and the second black box are arranged on toroidal shell, first sealing lip annular extends to the axial direction of the first upper side wall of toroidal shell, second sealing lip annular extends to the axial direction of the second lower wall of toroidal shell, first restraint assembly, second restraint assembly and the 3rd restraint assembly annular extend to the interior side direction axial direction of madial wall, second restraint assembly is between the first restraint assembly and the 3rd restraint assembly, the first restraint slot is formed between first restraint assembly and the second restraint assembly, the second restraint slot is formed between second restraint assembly and the 3rd restraint assembly.Described a kind of oil sealing with double-layer sealing structure, effectively can play sealability, prevent oil leakage, improves working life.
Description
Technical field
The utility model relates to the field of Sealing, especially a kind of oil sealing with double-layer sealing structure.
Background technique
Traditional oil sealing comprises toroidal shell, sealing lip and Sealing, toroidal shell comprises inwall, inwall is formed centrally in toroidal shell at outer surface and spindle hole, the axis hole of toroidal shell passes through ring sleeve for axle, ring sleeve is for installing Sealing, sealing lip annular is located at the axial direction of annular outer cover side, sealing lip is firmly encapsulated between toroidal shell and axle, thus effectively prevents lubricant oil from revealing from oil sealing.Sealed member is arranged on the axial direction of ring sleeve to axle of toroidal shell and extension, there is in toroidal shell cavity volume room, black box, axle and cavity volume indoor can comprise the oil sealing of a lubricant oil, when axle moves around through the spindle hole of toroidal shell and the axial direction along axle, because shaft seal fills firmly sealing lip and Sealing, lubricant oil can remain on cavity volume indoor, when Sealing Long-Time Service, sealability can reduce, lubricating oil viscosity is attached to the leakage that axle may cause sealed member, thus causes the oil lubrication efficiency on sealing and axle to reduce.
Summary of the invention
The technical problems to be solved in the utility model is: in order to overcome above-mentioned middle Problems existing, provide a kind of oil sealing with double-layer sealing structure, and its project organization rationally and effectively can prevent the object of oil leakage.
The utility model solves the technological scheme that its technical problem adopts: a kind of oil sealing with double-layer sealing structure, comprise toroidal shell, first black box, second black box, for preventing the first sealing lip of lubricant oil leakage of oil and the second sealing lip for preventing dust from entering oil sealing, described toroidal shell is by the outer side wall of outer surface, the madial wall of internal surface, first upper side wall and the second lower wall surround, the central position of toroidal shell offers the spindle hole for passing through for running shaft, first black box and the second black box are arranged on toroidal shell, first sealing lip annular extends to the axial direction of the first upper side wall of toroidal shell, second sealing lip annular extends to the axial direction of the second lower wall of toroidal shell, the first described sealing lip and the second sealing lip form integrative-structure, described toroidal shell also comprises the first restraint assembly, second restraint assembly and the 3rd restraint assembly, first restraint assembly, second restraint assembly and the 3rd restraint assembly annular extend to the interior side direction axial direction of madial wall, second restraint assembly is between the first restraint assembly and the 3rd restraint assembly, the first restraint slot is formed between first restraint assembly and the second restraint assembly, the second restraint slot is formed between second restraint assembly and the 3rd restraint assembly,
The first described black box comprises the first standing part and the first edge section, and the first standing part is inserted in the first restraint slot, and the first edge section extends on the axial direction of the first standing part; The second described black box comprises the second standing part and second edge portion, second standing part is inserted in the second restraint slot, second edge portion extends on the axial direction of the second standing part, in described toroidal shell, there is plenum chamber, the first black box, to be lubricated by the lubricant oil in plenum chamber between the second black box and running shaft.
In order to improve sealability, the side of the second described restraint assembly has the axial direction extension to running shaft and the flanging for strengthening constraint first black box.
Described toroidal shell is metallic cylinder.
The first described black box and the material of the second black box are that teflon, polyurethane or polyacrylate are made.
The beneficial effects of the utility model are: described a kind of oil sealing with double-layer sealing structure, adopt the oil sealing of this kind of design, utilize the design of the first restraint assembly, the second restraint assembly and the 3rd restraint assembly, effectively can play sealability, prevent oil leakage, improve working life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is a kind of overall structure schematic diagram with the oil sealing of double-layer sealing structure described in the utility model.
Accompanying drawing acceptance of the bid note is described below: 1, toroidal shell, 1-1, outer side wall, 1-2, madial wall, 1-3, the first upper side wall, 1-4, the second lower wall, 1-5, plenum chamber, the 2, first black box, the 21, first standing part, 22, the first edge section, 3, the second black box, the 31, second standing part, 32, second edge portion, 4, the first sealing lip, 5, the second sealing lip, the 6, first restraint assembly, the 7, second restraint assembly, 71, flanging, 8, the 3rd restraint assembly, the 9, first restraint slot, the 10, second restraint slot.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of oil sealing with double-layer sealing structure as shown in Figure 1, comprise by the outer side wall 1-1 of outer surface, the madial wall 1-2 of internal surface, the toroidal shell 1 that first upper side wall 1-3 and the second lower wall 1-4 surrounds, the central position of toroidal shell 1 offers the spindle hole for passing through for running shaft, first black box 2 and the second black box 3 are arranged on toroidal shell 1, first sealing lip 4 annular extends to the axial direction of the first upper side wall 1-3 of toroidal shell 1, second sealing lip 5 annular extends to the axial direction of the second lower wall 1-4 of toroidal shell, first sealing lip 4 is for preventing lubricant oil from oil sealing leakage of oil, second sealing lip 5 enters oil sealing for preventing dust, first sealing lip 4 and the second sealing lip 5 form integrative-structure, first restraint assembly 6, second restraint assembly 7 and the 3rd restraint assembly 8 annular extend to the interior side direction axial direction of madial wall 1-2, second restraint assembly 7 is between the first restraint assembly 6 and the 3rd restraint assembly 8, the side of the second restraint assembly 7 has the axial direction extension to running shaft and the flanging 71 for strengthening constraint first black box 2, the first restraint slot 9 is formed between first restraint assembly 6 and the second restraint assembly 7, the second restraint slot 10 is formed between second restraint assembly 7 and the 3rd restraint assembly 8, first black box 2 comprises the first standing part 21 and the first edge section 22, first standing part 21 is inserted in the first restraint slot 10, first edge section 22 extends on the axial direction of the first standing part 21, second black box 3 comprises the second standing part 31 and second edge portion 32, second standing part 31 is inserted in the second restraint slot 10, second edge portion 32 extends on the axial direction of the second standing part 31, there is plenum chamber 1-5 in toroidal shell 1, lubricated by the lubricant oil in plenum chamber 1-5 between the first black box 2, second black box 3 and running shaft.
A kind of oil sealing with double-layer sealing structure of the present utility model, when using this oil sealing, when running shaft is through the spindle hole of toroidal shell 1, and move around along the axial direction of axle 4, because on packed firmly the first sealing lip 4 of running shaft and the first black box 2, lubricant oil can remain in plenum chamber 1-5, sealing oil is not leaked, when damage and the sealability decline of the first black box 2, lubricant oil is attached to running shaft can flow to the second black box 3 from the leakage of the first seal assembly, second black box 3 can realize sealing and leak out from oil sealing to prevent lubricant oil.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. one kind has the oil sealing of double-layer sealing structure, it is characterized in that: comprise toroidal shell (1), first black box (2), second black box (3), for preventing first sealing lip (4) of lubricant oil leakage of oil and the second sealing lip (5) for preventing dust from entering oil sealing, described toroidal shell (1) is by the outer side wall (1-1) of outer surface, the madial wall (1-2) of internal surface, first upper side wall (1-3) and the second lower wall (1-4) surround, the central position of toroidal shell (1) offers the spindle hole for passing through for running shaft, first black box (2) and the second black box (3) are arranged on toroidal shell (1), first sealing lip (4) annular extends to the axial direction of first upper side wall (1-3) of toroidal shell (1), second sealing lip (5) annular extends to the axial direction of second lower wall (1-4) of toroidal shell, described the first sealing lip (4) and the second sealing lip (5) form integrative-structure, described toroidal shell (1) also comprises the first restraint assembly (6), second restraint assembly (7) and the 3rd restraint assembly (8), first restraint assembly (6), second restraint assembly (7) and the 3rd restraint assembly (8) annular extend to the interior side direction axial direction of madial wall (1-2), second restraint assembly (7) is positioned between the first restraint assembly (6) and the 3rd restraint assembly (8), the first restraint slot (9) is formed between first restraint assembly (6) and the second restraint assembly (7), the second restraint slot (10) is formed between second restraint assembly (7) and the 3rd restraint assembly (8),
Described the first black box (2) comprises the first standing part (21) and the first edge section (22), first standing part (21) is inserted in the first restraint slot (10), and the first edge section (22) extend on the axial direction of the first standing part (21); Described the second black box (3) comprises the second standing part (31) and second edge portion (32), second standing part (31) is inserted in the second restraint slot (10), second edge portion (32) extends on the axial direction of the second standing part (31), in described toroidal shell (1), there is plenum chamber (1-5), described the first black box (2), to be lubricated by the lubricant oil in plenum chamber (1-5) between the second black box (3) and running shaft.
2. a kind of oil sealing with double-layer sealing structure according to claim 1, is characterized in that: the side of described the second restraint assembly (7) has the axial direction extension to running shaft and the flanging (71) for strengthening constraint first black box (2).
3. a kind of oil sealing with double-layer sealing structure according to claim 1, is characterized in that: described toroidal shell (1) is metallic cylinder.
4. a kind of oil sealing with double-layer sealing structure according to claim 1, is characterized in that: described the first black box (2) and the material of the second black box (3) are teflon, polyurethane or polyacrylate are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865533.1U CN204372178U (en) | 2014-12-29 | 2014-12-29 | A kind of oil sealing with double-layer sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865533.1U CN204372178U (en) | 2014-12-29 | 2014-12-29 | A kind of oil sealing with double-layer sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372178U true CN204372178U (en) | 2015-06-03 |
Family
ID=53328400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865533.1U Expired - Fee Related CN204372178U (en) | 2014-12-29 | 2014-12-29 | A kind of oil sealing with double-layer sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122334A (en) * | 2019-12-26 | 2020-05-08 | 温州盈和创新科技有限公司 | Valve pressure test machine |
-
2014
- 2014-12-29 CN CN201420865533.1U patent/CN204372178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122334A (en) * | 2019-12-26 | 2020-05-08 | 温州盈和创新科技有限公司 | Valve pressure test machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161229 |